FAIRFAX FINANCIAL HOLDINGS LTD/ CAN (SEC Filing Page | XBRL Cloud Viewer | XBRL Instance)

Line Label Object Class Period Type Balance Report ElementName
1 0001000 - Document - DEI Network

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 http://www.fairfax.ca/role/Dei
2 Implied Table Table

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 implied:Table
3 Document Information [Abstract] Abstract ffh:DocumentInformationAbstract
4 Entity Registrant Name Concept (Text/String) For Period dei:EntityRegistrantName
5 Entity Central Index Key Concept (CIK Number) For Period dei:EntityCentralIndexKey
6 Current Fiscal Year End Date Concept (Month/Day) For Period dei:CurrentFiscalYearEndDate
7 Document Fiscal Year Focus Concept (Year) For Period dei:DocumentFiscalYearFocus
8 Document Fiscal Period Focus Concept (Fiscal Period) For Period dei:DocumentFiscalPeriodFocus
9 Document Type Concept (Submission Type) For Period dei:DocumentType
10 Amendment Flag Concept (Yes/No) For Period dei:AmendmentFlag
11 Entity Emerging Growth Company Concept (Yes/No) For Period dei:EntityEmergingGrowthCompany
12 Document Period End Date Concept (Date) For Period dei:DocumentPeriodEndDate
13 Entity Common Stock, Shares Outstanding Concept (Shares) As Of dei:EntityCommonStockSharesOutstanding
14 Entity Current Reporting Status Concept (Yes/No) For Period dei:EntityCurrentReportingStatus
15 1003000 - Statement - Consolidated Balance Sheets Network

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 http://www.fairfax.ca/role/ConsolidatedBalanceSheets
16 Statement [Table] Table

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 ffh:Statement1Table
17 Consolidated and separate financial statements [axis] Axis ifrs-full:ConsolidatedAndSeparateFinancialStatementsAxis
18 Consolidated [member] Member ifrs-full:ConsolidatedMember
19 Holding company cash and investments Member ffh:HoldingCompanyMember
20 Portfolio Investments Member ffh:NonHoldingCompanyMember
21 Holding Company, Insurance, and Reinsurance Companies Member ffh:HoldingCompanyInsuranceCompanyandReinsuranceCompanyMember
22 Non-insurance companies Member ffh:NonInsuranceCompanyMember
23 Associates [axis] Axis ifrs-full:SignificantInvestmentsInAssociatesAxis
24 Entity's total for associates [member] Member ifrs-full:EntitysTotalForAssociatesMember
25 Fairfax India and Fairfax Africa Member ffh:NonInsuranceFairfaxIndiaAndFairfaxAfricaMember
26 Classes of share capital [axis] Axis ifrs-full:ClassesOfShareCapitalAxis
27 Share capital [member] Member ifrs-full:ClassesOfShareCapitalMember
28 Common shareholders’ equity Member ifrs-full:OrdinarySharesMember
29 Preferred shares Member ifrs-full:PreferenceSharesMember
30 Statement [Line Items] LineItems ffh:Statement1LineItems
31 Assets Abstract ifrs-full:AssetsAbstract
32 Holding company cash and investments (including assets pledged for short sale and derivative obligations – $77.8; December 31, 2016 – $94.4) Concept (Monetary) As Of Debit ffh:InvestmentsAndCash1
33 Insurance contract receivables Concept (Monetary) As Of Debit ifrs-full:AssetsUnderInsuranceContractsAndReinsuranceContractsIssued
34 Portfolio investments Abstract ffh:Investments1Abstract
35 Subsidiary cash and short term investments Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
36 Bonds (cost $19,281.8; December 31, 2017 – $8,764.6) Concept (Monetary) As Of Debit ifrs-full:DebtInstrumentsHeld
37 Preferred stocks (cost $327.2; December 31, 2017 – $338.5) Concept (Monetary) As Of Debit ffh:PreferredEquityInstrumentsHeld
38 Common stocks (cost $5,014.2; December 31, 2017 – $4,877.5) Concept (Monetary) As Of Debit ffh:CommonEquityInstrumentsHeld
39 Investments in associates (fair value $3,279.1; December 31, 2017 – $2,824.3) Concept (Monetary) As Of Debit ifrs-full:InvestmentsInAssociates
40 Derivatives and other invested assets (cost $971.3; December 31, 2017 – $641.0) Concept (Monetary) As Of Debit ffh:DerivativeFinancialAssetsAndOtherInvestedAssets
41 Assets pledged for short sale and derivative obligations (cost $164.8; December 31, 2017 – $197.5) Concept (Monetary) As Of Debit ffh:FinancialAssetsPledgedAsCollateralForShortSaleAndDerivativeLiabilities
42 Portfolio investments Concept (Monetary) As Of Debit ffh:InvestmentsAndCash1
43 Deferred premium acquisition costs Concept (Monetary) As Of Debit ifrs-full:DeferredAcquisitionCostsArisingFromInsuranceContracts
44 Recoverable from reinsurers (including recoverables on paid losses – $651.0; December 31, 2017 – $453.8) Concept (Monetary) As Of Debit ifrs-full:AssetsUnderReinsuranceCeded
45 Deferred income taxes Concept (Monetary) As Of Debit ifrs-full:DeferredTaxAssets
46 Goodwill and intangible assets Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsAndGoodwill
47 Other assets Concept (Monetary) As Of Debit ifrs-full:OtherAssets
48 Total assets Concept (Monetary) As Of Debit ifrs-full:Assets
49 Liabilities Abstract ifrs-full:LiabilitiesAbstract
50 Accounts payable and accrued liabilities Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherPayables
51 Income taxes payable Concept (Monetary) As Of Credit ifrs-full:CurrentTaxLiabilities
52 Short sale and derivative obligations (including at the holding company – $6.6; December 31, 2017 – $11.5) Concept (Monetary) As Of Credit ifrs-full:DerivativeFinancialLiabilities
53 Funds withheld payable to reinsurers Concept (Monetary) As Of Credit ffh:ReinsurancePayableFundsWithheldFromReinsurers
54 Insurance contract liabilities Concept (Monetary) As Of Credit ifrs-full:LiabilitiesArisingFromInsuranceContracts
55 Borrowings Concept (Monetary) As Of Credit ifrs-full:Borrowings
56 Total liabilities Concept (Monetary) As Of Credit ifrs-full:Liabilities
57 Equity Abstract ifrs-full:EquityAbstract
58 Equity in stock Concept (Monetary) As Of Credit ifrs-full:IssuedCapital
59 Shareholders’ equity attributable to shareholders of Fairfax Concept (Monetary) As Of Credit ifrs-full:EquityAttributableToOwnersOfParent
60 Non-controlling interests Concept (Monetary) As Of Credit ifrs-full:NoncontrollingInterests
61 Total equity Concept (Monetary) As Of Credit ifrs-full:Equity
62 Equity and liabilities Concept (Monetary) As Of Credit ifrs-full:EquityAndLiabilities
63 1003001 - Statement - Consolidated Balance Sheets (Parenthetical) Network

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 http://www.fairfax.ca/role/ConsolidatedBalanceSheetsParenthetical
64 Statement [Table] Table

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 ffh:Statement1Table
65 Consolidated and separate financial statements [axis] Axis ifrs-full:ConsolidatedAndSeparateFinancialStatementsAxis
66 Consolidated [member] Member ifrs-full:ConsolidatedMember
67 Holding company cash and investments Member ffh:HoldingCompanyMember
68 Portfolio Investments Member ffh:NonHoldingCompanyMember
69 Statement [Line Items] LineItems ffh:Statement1LineItems
70 Financial assets pledged as liabilities Concept (Monetary) As Of Debit ifrs-full:FinancialAssetsPledgedAsCollateralForLiabilitiesOrContingentLiabilities
71 Bonds, at cost Concept (Monetary) As Of Debit ffh:DebtInstrumentsHeldAtAmortizedCost
72 Preferred stocks, at cost Concept (Monetary) As Of Debit ffh:PreferredEquityInstrumentsHeldAtAmortizedCost
73 Common stocks, at cost Concept (Monetary) As Of Debit ffh:CommonEquityInstrumentsHeldAtAmortizedCost
74 Fair value of investments in associates Concept (Monetary) As Of Debit ffh:InvestmentsInAssociatesFairValue
75 Derivatives and other invested assets, at cost Concept (Monetary) As Of Debit ffh:DerivativeFinancialAssetsAndOtherInvestedAssetsAtAmortizedCost
76 Assets pledged for short sale and derivative obligations, at cost Concept (Monetary) As Of Debit ffh:FinancialAssetsPledgedAsCollateralForShortSaleAndDerivativeLiabilitiesAtAmortizedCost
77 Recoverables on paid losses Concept (Monetary) As Of Debit ffh:ReinsuranceRecoverablesOnPaidLosses1
78 Short sale and derivative obligations, holding company Concept (Monetary) As Of Credit ifrs-full:DerivativeFinancialLiabilities
79 1005000 - Statement - Consolidated Statements of Earnings Network

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 http://www.fairfax.ca/role/ConsolidatedStatementsOfEarnings
80 Implied Table Table

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 implied:Table
81 Profit or loss [abstract] Abstract ifrs-full:IncomeStatementAbstract
82 Income Abstract ifrs-full:RevenueAbstract
83 Gross premiums written Concept (Monetary) For Period Credit ifrs-full:RevenueFromInsuranceContractsIssuedWithoutReductionForReinsuranceHeld
84 Net premiums written Concept (Monetary) For Period Credit ifrs-full:PremiumsWrittenNetOfReinsurance
85 Gross premiums earned Concept (Monetary) For Period Credit ffh:DirectPremiumsEarned1
86 Premiums ceded to reinsurers Concept (Monetary) For Period Debit ffh:CededPremiumsEarned1
87 Net premiums earned Concept (Monetary) For Period Credit ifrs-full:NetEarnedPremium
88 Interest and dividends Concept (Monetary) For Period Credit ifrs-full:InvestmentIncome
89 Share of profit of associates Concept (Monetary) For Period Credit ifrs-full:ShareOfProfitLossOfAssociatesAccountedForUsingEquityMethod
90 Net gains on investments Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLoss
91 Gain on sale of subsidiary Concept (Monetary) For Period Credit ifrs-full:AdjustmentsForGainLossOnDisposalOfInvestmentsInSubsidiariesJointVenturesAndAssociates
92 Other revenue Concept (Monetary) For Period Credit ifrs-full:OtherIncome
93 Income Concept (Monetary) For Period Credit ifrs-full:Revenue
94 Expenses Abstract ifrs-full:ExpenseByNatureAbstract
95 Losses on claims, gross Concept (Monetary) For Period Debit ffh:PolicyholderBenefitsAndClaimsIncurredGross1
96 Losses on claims ceded to reinsurers Concept (Monetary) For Period Credit ffh:ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountCeded1
97 Losses on claims, net Concept (Monetary) For Period Debit ffh:LiabilityforClaimsAndClaimsAdjustmentExpenseIncomeStatementImpact
98 Operating expenses Concept (Monetary) For Period Debit ifrs-full:OperatingExpense
99 Commissions, net Concept (Monetary) For Period Debit ifrs-full:FeeAndCommissionExpense
100 Interest expense Concept (Monetary) For Period Debit ifrs-full:InterestExpense
101 Other expenses Concept (Monetary) For Period Debit ffh:OtherExpensesIncludingRepurchaseOfDebtInstrument
102 Expenses Concept (Monetary) For Period Debit ifrs-full:ExpenseByNature
103 Earnings before income taxes Concept (Monetary) For Period Credit ifrs-full:ProfitLossBeforeTax
104 Provision for income taxes Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
105 Net earnings Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
106 Attributable to: Abstract ifrs-full:ProfitLossAttributableToAbstract
107 Shareholders of Fairfax Concept (Monetary) For Period Credit ifrs-full:ProfitLossAttributableToOwnersOfParent
108 Non-controlling interests Concept (Monetary) For Period Credit ifrs-full:ProfitLossAttributableToNoncontrollingInterests
109 Net earnings Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
110 Net earnings per share (in dollars per share) Concept (Share) For Period ifrs-full:BasicEarningsLossPerShare
111 Net earnings per diluted share (in dollars per share) Concept (Share) For Period ifrs-full:DilutedEarningsLossPerShare
112 Cash dividends paid per share (in dollars per share) Concept (Share) For Period ifrs-full:DividendsPaidOrdinarySharesPerShare
113 Shares outstanding (weighted average) (in shares) Concept (Shares) For Period ifrs-full:WeightedAverageShares
114 1007000 - Statement - Consolidated Statements of Comprehensive Income Network

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 http://www.fairfax.ca/role/ConsolidatedStatementsOfComprehensiveIncome
115 Statement [Table] Table

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 ffh:Statement1Table
116 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
117 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
118 Canada Member country:CA
119 Europe Member srt:EuropeMember
120 Statement [Line Items] LineItems ffh:Statement1LineItems
121 Net earnings Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
122 Other comprehensive income (loss), net of income taxes Abstract ifrs-full:OtherComprehensiveIncomeAbstract
123 Items that may be subsequently reclassified to net earnings Abstract ifrs-full:ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract
124 Net unrealized foreign currency translation gains (losses) on foreign operations Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation
125 Gains (losses) on hedge of net investment Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeNetOfTaxHedgesOfNetInvestmentsInForeignOperations
126 Share of other comprehensive income (loss) of associates, excluding net gains (losses) on defined benefit plans Concept (Monetary) For Period Credit ffh:ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodExcludingDefinedBenefitPlansThatWillBeReclassifiedToProfitOrLossNetOfTax
127 Items that may be subsequently reclassified to net earnings Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax
128 Items that will not be subsequently reclassified to net earnings Abstract ifrs-full:ComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTaxAbstract
129 Share of net gains (losses) on defined benefit plans of associates Concept (Monetary) For Period Credit ffh:ShareOfOtherComprehensiveIncomeOnDefinedBenefitPlansOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillNotBeReclassifiedToProfitOrLossNetOfTax
130 Net gains (losses) on defined benefit plans Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans
131 Items that will not be subsequently reclassified to net earnings Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax
132 Other comprehensive income (loss), net of income taxes Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncome
133 Comprehensive income Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncome
134 Attributable to: Abstract ifrs-full:ComprehensiveIncomeAttributableToAbstract
135 Shareholders of Fairfax Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncomeAttributableToOwnersOfParent
136 Non-controlling interests Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncomeAttributableToNoncontrollingInterests
137 Comprehensive income Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncome
138 Income tax (expense) recovery included in other comprehensive income (loss) Abstract ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeAbstract
139 Income tax on items that may be subsequently reclassified to net earnings Abstract ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossAbstract
140 Net unrealized foreign currency translation gains (losses) on foreign operations Concept (Monetary) For Period Debit ifrs-full:IncomeTaxRelatingToExchangeDifferencesOnTranslationOfOtherComprehensiveIncome
141 Share of other comprehensive income (loss) of associates, excluding net gains (losses) on defined benefit plans Concept (Monetary) For Period Debit ifrs-full:IncomeTaxRelatingToShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillBeReclassifiedToProfitOrLoss
142 Income tax on items that may be subsequently reclassified to net earnings Concept (Monetary) For Period Debit ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLoss
143 Income tax on items that will not be subsequently reclassified to net earnings Abstract ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossAbstract
144 Share of net gains (losses) on defined benefit plans of associates Concept (Monetary) For Period Debit ffh:IncomeTaxRelatingToShareOfOtherComprehensiveIncomeOnDefinedBenefitPlansOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillNotBeReclassifiedToProfitOrLoss
145 Net gains (losses) on defined benefit plans Concept (Monetary) For Period Debit ifrs-full:IncomeTaxRelatingToRemeasurementsOfDefinedBenefitPlansOfOtherComprehensiveIncome
146 Income tax on items that will not be subsequently reclassified to net earnings Concept (Monetary) For Period Debit ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss
147 Total income tax (expense) recovery Concept (Monetary) For Period ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome
148 1008000 - Statement - Consolidated Statements of Changes in Equity Network

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 http://www.fairfax.ca/role/ConsolidatedStatementsOfChangesInEquity
149 Statement of changes in equity [table] Table

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 ifrs-full:StatementOfChangesInEquityTable
150 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
151 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
152 Canada Member country:CA
153 Europe Member srt:EuropeMember
154 Classes of share capital [axis] Axis ifrs-full:ClassesOfShareCapitalAxis
155 Share capital [member] Member ifrs-full:ClassesOfShareCapitalMember
156 Subordinate voting shares Member ffh:OrdinarySharesSubordinateVotingSharesMember
157 Multiple voting shares Member ffh:OrdinarySharesMultipleVotingSharesMember
158 Common shareholders’ equity Member ifrs-full:OrdinarySharesMember
159 Preferred shares Member ifrs-full:PreferenceSharesMember
160 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
161 Equity [member] Member ifrs-full:EquityMember
162 Equity issued Member ifrs-full:IssuedCapitalMember
163 Treasury shares at cost Member ifrs-full:TreasurySharesMember
164 Share- based payments and other reserves Member ifrs-full:OtherReservesMember
165 Retained earnings Member ifrs-full:RetainedEarningsMember
166 Accumulated other comprehensive income (loss) Member ifrs-full:AccumulatedOtherComprehensiveIncomeMember
167 Equity attributable to shareholders of Fairfax Member ifrs-full:EquityAttributableToOwnersOfParentMember
168 Non- controlling interests Member ifrs-full:NoncontrollingInterestsMember
169 Statement of changes in equity [line items] LineItems ifrs-full:StatementOfChangesInEquityLineItems
170 Changes in equity [abstract] Abstract ifrs-full:ChangesInEquityAbstract
171 Beginning balance Concept (Monetary) As Of Credit ifrs-full:Equity
172 Net earnings for the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
173 Net unrealized foreign currency translation gains (losses) on foreign operations Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation
174 Gains (losses) on hedge of net investment Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeNetOfTaxCashFlowHedges
175 Share of other comprehensive income (loss) of associates, excluding net gains (losses) on defined benefit plans Concept (Monetary) For Period Credit ffh:ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodExcludingDefinedBenefitPlansThatWillBeReclassifiedToProfitOrLossNetOfTax
176 Share of net gains (losses) on defined benefit plans of associates Concept (Monetary) For Period Credit ffh:ShareOfOtherComprehensiveIncomeOnDefinedBenefitPlansOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillNotBeReclassifiedToProfitOrLossNetOfTax
177 Net gains (losses) on defined benefit plans Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans
178 Issuances for share-based payments Concept (Monetary) For Period Credit ifrs-full:IssueOfEquity
179 Purchases and amortization for share-based payments (note 16) Concept (Monetary) For Period Debit ffh:ReductionOfIssuedCapitalPurchasesAndAmortization
180 Purchases for cancellation (note 16) Concept (Monetary) For Period Debit ffh:ReductionOfIssuedCapitalPurchasesForCancellation
181 Common share dividends Concept (Monetary) For Period Debit ifrs-full:DividendsPaidOrdinaryShares
182 Preferred share dividends Concept (Monetary) For Period Debit ifrs-full:DividendsPaidOtherShares
183 Acquisitions of subsidiaries (note 23) Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughAcquisitionOfSubsidiary
184 Other net changes in capitalization (notes 16 and 23) Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughTransfersAndOtherChangesEquity
185 Ending balance Concept (Monetary) As Of Credit ifrs-full:Equity
186 1009000 - Statement - Consolidated Statements of Cash Flows Network

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 http://www.fairfax.ca/role/ConsolidatedStatementsOfCashFlows
187 Statement [Table] Table

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 ffh:Statement1Table
188 Consolidated and separate financial statements [axis] Axis ifrs-full:ConsolidatedAndSeparateFinancialStatementsAxis
189 Consolidated [member] Member ifrs-full:ConsolidatedMember
190 Holding Company, Insurance, and Reinsurance Companies Member ffh:HoldingCompanyInsuranceCompanyandReinsuranceCompanyMember
191 Insurance and reinsurance companies Member ffh:InsuranceAndReinsuranceCompaniesMember
192 Holding company Member ffh:HoldingCompanyMember
193 Non-insurance companies Member ffh:NonInsuranceCompanyMember
194 Statement [Line Items] LineItems ffh:Statement1LineItems
195 Operating activities Abstract ifrs-full:CashFlowsFromUsedInOperatingActivitiesAbstract
196 Net earnings Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
197 Depreciation, amortization and impairment charges Concept (Monetary) For Period Debit ffh:DepreciationAmortizationAndAssetImpairmentCharges
198 Net bond discount amortization Concept (Monetary) For Period Debit ffh:AmortizationOfBondPremiumDiscountNet
199 Amortization of share-based payment awards Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForSharebasedPayments
200 Share of profit of associates Concept (Monetary) For Period Credit ifrs-full:ShareOfProfitLossOfAssociatesAccountedForUsingEquityMethod
201 Deferred income taxes Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDeferredTaxExpense
202 Net gains on investments Concept (Monetary) For Period Credit ffh:GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLossExcludingChangeInFairValueOfInvestmentPropertiesHeldByInsuranceEntities
203 Gain on sale of subsidiary Concept (Monetary) For Period Credit ifrs-full:AdjustmentsForGainLossOnDisposalOfInvestmentsInSubsidiariesJointVenturesAndAssociates
204 Loss on repurchase of borrowings Concept (Monetary) For Period Credit ffh:GainLossOnRepurchaseOfDebtInstrument1
205 Net increase in fair value of investment property Concept (Monetary) For Period Credit ffh:UnrealizedGainLossOnInvestmentProperty
206 Net (purchases) sales of securities classified at FVTPL Concept (Monetary) For Period Debit ffh:ProceedsForPurchasesOfFinancialAssetsAtFairValueThroughProfitOrLoss
207 Changes in operating assets and liabilities Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseInWorkingCapital
208 Cash provided by (used in) operating activities Concept (Monetary) For Period ifrs-full:CashFlowsFromUsedInOperatingActivities
209 Investing activities Abstract ifrs-full:CashFlowsFromUsedInInvestingActivitiesAbstract
210 Sales of investments in associates Concept (Monetary) For Period Debit ifrs-full:ProceedsFromSalesOfInterestsInAssociates
211 Purchases of investments in associates Concept (Monetary) For Period Credit ifrs-full:PurchaseOfInterestsInAssociates
212 Net purchases of investment property Concept (Monetary) For Period Credit ifrs-full:PurchaseOfInvestmentProperty
213 Net purchases of premises and equipment and intangible assets Concept (Monetary) For Period Credit ifrs-full:PurchaseOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets
214 Purchases of subsidiaries, net of cash acquired Concept (Monetary) For Period Credit ifrs-full:CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities
215 Sale of subsidiary, net of cash divested Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities
216 Deconsolidation of subsidiary Concept (Monetary) For Period Credit ffh:CashDivestedFromDeconsolidation1
217 Cash used in investing activities Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInInvestingActivities
218 Financing activities Abstract ifrs-full:CashFlowsFromUsedInFinancingActivitiesAbstract
219 Proceeds, net of issuance costs Concept (Monetary) For Period Debit ifrs-full:ProceedsFromNoncurrentBorrowings
220 Repayments Concept (Monetary) For Period Credit ifrs-full:RepaymentsOfNoncurrentBorrowings
221 Net borrowings from (repayments to) revolving credit facility and short term loans Concept (Monetary) For Period Debit ffh:ProceedsFromRepaymentsOfLinesOfCredit1
222 Decrease (increase) in restricted cash related to financing activities Concept (Monetary) For Period Credit ffh:CashFlowsFromUsedInDecreaseIncreaseInRestrictedCashAndCashEquivalentsFinancingActivities
223 Purchases for treasury Concept (Monetary) For Period Credit ifrs-full:PaymentsToAcquireOrRedeemEntitysShares
224 Purchases for cancellation Concept (Monetary) For Period Credit ffh:PaymentsToAcquireOrRedeemEntitysSharesCancellation
225 Common share dividends Concept (Monetary) For Period Debit ffh:DividendsPaidOrdinarySharesExcludingNonControllingInterest
226 Preferred share dividends Concept (Monetary) For Period Debit ifrs-full:DividendsPaidOtherShares
227 Issuances to non-controlling interests, net of issuance costs Concept (Monetary) For Period Debit ifrs-full:ProceedsFromChangesInOwnershipInterestsInSubsidiaries
228 Purchases of non-controlling interests Concept (Monetary) For Period Debit ffh:ProceedsFromPaymentsToSaleOfInterestsInAssociates
229 Sales to non-controlling interests Concept (Monetary) For Period Debit ffh:ProceedsFromSalesOfInterestsInAssociatesFinancingActivities
230 Dividends paid to non-controlling interests Concept (Monetary) For Period Credit ifrs-full:DividendsPaidToNoncontrollingInterestsClassifiedAsFinancingActivities
231 Cash provided by (used in) financing activities Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInFinancingActivities
232 Increase (decrease) in cash and cash equivalents Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges
233 Cash and cash equivalents – beginning of year Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalentsIfDifferentFromStatementOfFinancialPosition
234 Foreign currency translation Concept (Monetary) For Period Debit ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalents
235 Cash and cash equivalents – end of year Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalentsIfDifferentFromStatementOfFinancialPosition
236 2101100 - Disclosure - Business Operations Network

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237 Implied Table Table

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238 Corporate Information And Statement Of IFRS Compliance [Abstract] Abstract ffh:CorporateInformationAndStatementOfIFRSComplianceAbstract
239 Business Operations Concept (Text Block (HTML)) For Period ffh:DisclosureOfNatureOfBusinessExplanatoryTextBlock
240 2102100 - Disclosure - Basis of Presentation Network

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 http://www.fairfax.ca/role/BasisOfPresentation
241 Implied Table Table

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242 Corporate Information And Statement Of IFRS Compliance [Abstract] Abstract ffh:CorporateInformationAndStatementOfIFRSComplianceAbstract
243 Basis of Presentation Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfBasisOfPreparationOfFinancialStatementsExplanatory
244 2103100 - Disclosure - Summary of Significant Accounting Policies Network

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 http://www.fairfax.ca/role/SummaryOfSignificantAccountingPolicies
245 Implied Table Table

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246 Corporate Information And Statement Of IFRS Compliance [Abstract] Abstract ffh:CorporateInformationAndStatementOfIFRSComplianceAbstract
247 Summary of Significant Accounting Policies Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfSummaryOfSignificantAccountingPoliciesExplanatory
248 2104100 - Disclosure - Critical Accounting Estimates and Judgments Network

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 http://www.fairfax.ca/role/CriticalAccountingEstimatesAndJudgments
249 Implied Table Table

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250 Disclosure of changes in accounting policies, accounting estimates and errors [Abstract] Abstract ffh:DisclosureofchangesinaccountingpoliciesaccountingestimatesanderrorsAbstract
251 Critical Accounting Estimates and Judgments Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfAccountingJudgementsAndEstimatesExplanatory
252 2105100 - Disclosure - Cash and Investments Network

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 http://www.fairfax.ca/role/CashAndInvestments
253 Implied Table Table

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254 Investments and Cash1 [Abstract] Abstract ffh:InvestmentsandCash1Abstract
255 Cash and Investments Concept (Text Block (HTML)) For Period ffh:DisclosureOfCashCashEquivalentsDerivativesAndInvestmentsTextBlock
256 2106100 - Disclosure - Investments in Associates Network

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 http://www.fairfax.ca/role/InvestmentsInAssociates
257 Implied Table Table

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258 Interests In Other Entities [Abstract] Abstract ffh:InterestsInOtherEntitiesAbstract
259 Investments in Associates Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfSignificantInvestmentsInAssociatesExplanatory
260 2107100 - Disclosure - Short Sales and Derivatives Network

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 http://www.fairfax.ca/role/ShortSalesAndDerivatives
261 Implied Table Table

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262 Disclosure of notes and other explanatory information [Abstract] Abstract ffh:DisclosureofnotesandotherexplanatoryinformationAbstract
263 Short Sales and Derivatives Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDerivativeFinancialInstrumentsExplanatory
264 2108100 - Disclosure - Insurance Contract Liabilities Network

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265 Implied Table Table

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266 Insurance Contracts [Abstract] Abstract ffh:InsuranceContractsAbstract
267 Insurance Contract Liabilities Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfInsuranceContractsExplanatory
268 2109100 - Disclosure - Insurance Contract Receivables Network

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269 Implied Table Table

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270 Insurance Contracts [Abstract] Abstract ffh:InsuranceContractsAbstract
271 Insurance Contract Receivables Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfInsuranceContractsExplanatory
272 2110100 - Disclosure - Reinsurance Network

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 http://www.fairfax.ca/role/Reinsurance
273 Implied Table Table

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 implied:Table
274 Insurance Contracts [Abstract] Abstract ffh:InsuranceContractsAbstract
275 Reinsurance Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfReinsuranceExplanatory
276 2111100 - Disclosure - Deferred Premium Acquisition Costs Network

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 http://www.fairfax.ca/role/DeferredPremiumAcquisitionCosts
277 Implied Table Table

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278 Insurance Contracts [Abstract] Abstract ffh:InsuranceContractsAbstract
279 Deferred Premium Acquisition Costs Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDeferredAcquisitionCostsArisingFromInsuranceContractsExplanatory
280 2112100 - Disclosure - Goodwill and Intangible Assets Network

*

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 http://www.fairfax.ca/role/GoodwillAndIntangibleAssets
281 Implied Table Table

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282 Disclosure of reconciliation of changes in intangible assets and goodwill [abstract] Abstract ifrs-full:DisclosureOfReconciliationOfChangesInIntangibleAssetsAndGoodwillAbstract
283 Goodwill and Intangible Assets Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfIntangibleAssetsAndGoodwillExplanatory
284 2112100 - Disclosure - Other Assets Network

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*

 http://www.fairfax.ca/role/OtherAssets
285 Implied Table Table

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286 Subclassifications of assets, liabilities and equities [abstract] Abstract ifrs-full:SubclassificationsOfAssetsLiabilitiesAndEquitiesAbstract
287 Other Assets Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOtherAssetsExplanatory
288 2114100 - Disclosure - Accounts Payable and Accrued Liabilities Network

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*

 http://www.fairfax.ca/role/AccountsPayableAndAccruedLiabilities
289 Implied Table Table

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 implied:Table
290 Subclassifications of assets, liabilities and equities [abstract] Abstract ifrs-full:SubclassificationsOfAssetsLiabilitiesAndEquitiesAbstract
291 Accounts Payable and Accrued Liabilities Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfAccruedExpensesAndOtherLiabilitiesExplanatory
292 2115100 - Disclosure - Borrowings Network

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293 Implied Table Table

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294 Borrowings [abstract] Abstract ifrs-full:BorrowingsAbstract
295 Borrowings Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfBorrowingsExplanatory
296 2116100 - Disclosure - Total Equity Network

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 http://www.fairfax.ca/role/TotalEquity
297 Implied Table Table

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298 Share Capital, Reserves And Other Equity Interest [Abstract] Abstract ffh:ShareCapitalReservesAndOtherEquityInterestAbstract
299 Total Equity Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory
300 2117100 - Disclosure - Earnings per Share Network

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*

 http://www.fairfax.ca/role/EarningsPerShare
301 Implied Table Table

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 implied:Table
302 Earnings per share [abstract] Abstract ifrs-full:EarningsPerShareAbstract
303 Earnings per Share Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfEarningsPerShareExplanatory
304 2118100 - Disclosure - Income Taxes Network

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 http://www.fairfax.ca/role/IncomeTaxes
305 Implied Table Table

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306 Income Taxes [Abstract] Abstract ffh:IncomeTaxesAbstract
307 Income Taxes Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfIncomeTaxExplanatory
308 2119100 - Disclosure - Statutory Requirements Network

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 http://www.fairfax.ca/role/StatutoryRequirements
309 Implied Table Table

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310 Statutory Requirements [Abstract] Abstract ffh:StatutoryRequirementsAbstract
311 Statutory Requirements Concept (Text Block (HTML)) For Period ffh:DisclosureOfDividendCapacityTextBlock
312 2120100 - Disclosure - Contingencies and Commitments Network

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 http://www.fairfax.ca/role/ContingenciesAndCommitments
313 Implied Table Table

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314 Other Provisions, Contingent Liabilities And Contingent Assets [Abstract] Abstract ffh:OtherProvisionsContingentLiabilitiesAndContingentAssetsAbstract
315 Contingencies and Commitments Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfCommitmentsAndContingentLiabilitiesExplanatory
316 2120100 - Disclosure - Pensions and Post Retirement Benefits Network

*

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 http://www.fairfax.ca/role/PensionsAndPostRetirementBenefits
317 Implied Table Table

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319 Pensions and Post Retirement Benefits Concept (Text Block (HTML)) For Period ffh:DisclosureOfPensionAndPostRetirementBenefitsTextBlock
320 2122100 - Disclosure - Operating Leases Network

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 http://www.fairfax.ca/role/OperatingLeases
321 Implied Table Table

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322 Leases1 [Abstract] Abstract ffh:Leases1Abstract
323 Operating Leases Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfLeasesExplanatory
324 2123100 - Disclosure - Acquisitions and Divestitures Network

*

*

 http://www.fairfax.ca/role/AcquisitionsAndDivestitures
325 Implied Table Table

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326 Business Combinations1 [Abstract] Abstract ffh:BusinessCombinations1Abstract
327 Acquisitions and Divestitures Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfBusinessCombinationsExplanatory
328 2124100 - Disclosure - Financial Risk Management Network

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 http://www.fairfax.ca/role/FinancialRiskManagement
329 Implied Table Table

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330 Disclosure of nature and extent of risks arising from financial instruments [abstract] Abstract ifrs-full:DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsAbstract
331 Financial Risk Management Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFinancialRiskManagementExplanatory
332 2125100 - Disclosure - Segmented Information Network

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*

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333 Implied Table Table

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334 Operating Segments [Abstract] Abstract ffh:OperatingSegmentsAbstract
335 Segmented Information Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfEntitysReportableSegmentsExplanatory
336 2126100 - Disclosure - Expenses Network

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 http://www.fairfax.ca/role/Expenses
337 Implied Table Table

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338 Analysis of income and expense [abstract] Abstract ifrs-full:AnalysisOfIncomeAndExpenseAbstract
339 Expenses Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfExpensesExplanatory
340 2127100 - Disclosure - Supplementary Cash Flow Information Network

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*

 http://www.fairfax.ca/role/SupplementaryCashFlowInformation
341 Implied Table Table

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342 Cash Flow Statement [Abstract] Abstract ffh:CashFlowStatementAbstract
343 Supplementary Cash Flow Information Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfCashFlowStatementExplanatory
344 2128100 - Disclosure - Related Party Transactions Network

*

*

 http://www.fairfax.ca/role/RelatedPartyTransactions
345 Implied Table Table

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346 Related Party [Abstract] Abstract ffh:RelatedPartyAbstract
347 Related Party Transactions Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfRelatedPartyExplanatory
348 2129100 - Disclosure - Subsidiaries Network

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 http://www.fairfax.ca/role/Subsidiaries
349 Implied Table Table

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350 Interests In Other Entities [Abstract] Abstract ffh:InterestsInOtherEntitiesAbstract
351 Subsidiaries Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesExplanatory
352 2203201 - Disclosure - Summary of Significant Accounting Policies (Policies) Network

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 http://www.fairfax.ca/role/SummaryOfSignificantAccountingPoliciesPolicies
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355 Basis of Presentation Concept (Text Block (HTML)) For Period ffh:DescriptionOfAccountingPolicyForBasisOfPresentationPolicyTextBlock
356 Consolidation Concept (Text Block (HTML)) For Period ffh:Consolidation1PolicyTextBlock
357 Business combinations Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForBusinessCombinationsExplanatory
358 Goodwill and intangible assets Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForIntangibleAssetsAndGoodwillExplanatory
359 Investment in associates Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForInvestmentInAssociates
360 Consolidated statement of cash flows Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForCashFlowsExplanatory
361 Investments Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForInvestmentsOtherThanInvestmentsAccountedForUsingEquityMethodExplanatory
362 Foreign currency translation Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory
363 Hedging Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForDerivativeFinancialInstrumentsAndHedgingExplanatory
364 Insurance contracts Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForInsuranceContracts
365 Reinsurance Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForReinsuranceExplanatory
366 Income taxes Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForIncomeTaxExplanatory
367 Investment property Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForInvestmentPropertyExplanatory
368 Other assets Concept (Text Block (HTML)) For Period ffh:DescriptionOfAccountingPolicyForOtherAssetsPolicyTextBlock
369 Other revenue and expenses Concept (Text Block (HTML)) For Period ffh:DescriptionOfAccountingPolicyForOtherRevenueAndExpensesPolicyTextBlock
370 Accounts payable and accrued liabilities Concept (Text Block (HTML)) For Period ffh:DescriptionOfAccountingPolicyForAccountsPayableAndAccruedLiabilitiesPolicyTextBlock
371 Borrowings Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForBorrowingsExplanatory
372 Equity Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForIssuedCapitalExplanatory
373 Share-based payments Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory
374 Net earnings per share attributable to shareholders of Fairfax Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForEarningsPerShareExplanatory
375 Pensions and post retirement benefits Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForEmployeeBenefitsExplanatory
376 Operating leases Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForLeasesExplanatory
377 New accounting pronouncements Concept (Text Block (HTML)) For Period ffh:NewAccountingPronouncementsPolicy1PolicyTextBlock
378 2303302 - Disclosure - Summary of Significant Accounting Policies (Tables) Network

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379 Implied Table Table

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380 Corporate Information And Statement Of IFRS Compliance [Abstract] Abstract ffh:CorporateInformationAndStatementOfIFRSComplianceAbstract
381 Schedule of estimated useful lives of intangible assets Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDetailedInformationAboutIntangibleAssetsExplanatory
382 2305301 - Disclosure - Cash and Investments (Tables) Network

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383 Implied Table Table

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384 Investments and Cash1 [Abstract] Abstract ffh:InvestmentsandCash1Abstract
385 Schedule of cash and investments Concept (Text Block (HTML)) For Period ffh:ScheduleOfCashAndInvestmentsTableTextBlock
386 Schedule of pledge assets, by nature of pledge requirement Concept (Text Block (HTML)) For Period ffh:DisclosureOfPledgeAssetsByNatureOfPledgeRequirementTableTextBlock
387 Schedule of fixed income maturity profile Concept (Text Block (HTML)) For Period ffh:ScheduleOfFixedIncomeMaturityProfileTableTextBlock
388 Disclosure of fair value measurement of assets Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFairValueMeasurementOfAssetsExplanatory
389 Disclosure of fair value measurement of liabilities Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFairValueMeasurementOfLiabilitiesExplanatory
390 Disclosure of significant unobservable inputs used in fair value measurement of assets Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsExplanatory
391 Disclosure of investment income Concept (Text Block (HTML)) For Period ffh:DisclosureOfInvestmentIncomeTableTextBlock
392 Disclosure of net gains (losses) on investments Concept (Text Block (HTML)) For Period invest:InvestmentTableTextBlock
393 2306301 - Disclosure - Investments in Associates (Tables) Network

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 http://www.fairfax.ca/role/InvestmentsInAssociatesTables
394 Disclosure of associates [table] Table

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395 Associates [axis] Axis ifrs-full:SignificantInvestmentsInAssociatesAxis
396 Entity's total for associates [member] Member ifrs-full:EntitysTotalForAssociatesMember
397 Seaspan Corporation Member ffh:SeaspanCorporationMember
398 Disclosure of associates [line items] LineItems ifrs-full:DisclosureOfSignificantInvestmentsInAssociatesLineItems
399 Schedule of investments in associates Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfInterestsInAssociatesExplanatory
400 Disclosure of information for cash-generating units Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesExplanatory
401 2307301 - Disclosure - Short Sales and Derivatives (Tables) Network

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 http://www.fairfax.ca/role/ShortSalesAndDerivativesTables
402 Implied Table Table

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403 Disclosure of notes and other explanatory information [Abstract] Abstract ffh:DisclosureofnotesandotherexplanatoryinformationAbstract
404 Schedule of derivative financial instruments Concept (Text Block (HTML)) For Period ffh:ScheduleOfDerivativeFinancialInstrumentsTableTextBlock
405 Disclosure of detailed information about financial instruments Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDetailedInformationAboutFinancialInstrumentsExplanatory
406 2308301 - Disclosure - Insurance Contract Liabilities (Tables) Network

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 http://www.fairfax.ca/role/InsuranceContractLiabilitiesTables
407 Implied Table Table

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408 Insurance Contracts [Abstract] Abstract ffh:InsuranceContractsAbstract
409 Disclosure of amounts arising from insurance contracts Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfAmountsArisingFromInsuranceContractsExplanatory
410 Disclosure of sensitivity to insurance risk Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfSensitivityToInsuranceRiskExplanatory
411 2309301 - Disclosure - Insurance Contract Receivables (Tables) Network

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 http://www.fairfax.ca/role/InsuranceContractReceivablesTables
412 Implied Table Table

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413 Insurance Contracts [Abstract] Abstract ffh:InsuranceContractsAbstract
414 Disclosure of insurance contract receivables and changes in premiums Concept (Text Block (HTML)) For Period ffh:DisclosureOfAmountsArisingFromInsuranceContractReceivablesTableTextBlock
415 2310301 - Disclosure - Reinsurance (Tables) Network

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 http://www.fairfax.ca/role/ReinsuranceTables
416 Implied Table Table

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417 Insurance Contracts [Abstract] Abstract ffh:InsuranceContractsAbstract
418 Disclosure of reinsurers' share of amounts arising from insurance contracts Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfNetGrossAndReinsurersShareForAmountsArisingFromInsuranceContractsExplanatory
419 2311301 - Disclosure - Deferred Premium Acquisition Costs (Tables) Network

*

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 http://www.fairfax.ca/role/DeferredPremiumAcquisitionCostsTables
420 Implied Table Table

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421 Insurance Contracts [Abstract] Abstract ffh:InsuranceContractsAbstract
422 Schedule of deferred premium acquisition costs Concept (Text Block (HTML)) For Period ffh:ScheduleOfDeferredPremiumAcquisitionCostsTableTextBlock
423 2312301 - Disclosure - Goodwill and Intangible Assets (Tables) Network

*

*

 http://www.fairfax.ca/role/GoodwillAndIntangibleAssetsTables
424 Implied Table Table

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 implied:Table
425 Disclosure of reconciliation of changes in intangible assets and goodwill [abstract] Abstract ifrs-full:DisclosureOfReconciliationOfChangesInIntangibleAssetsAndGoodwillAbstract
426 Disclosure of reconciliation of changes in intangible assets and goodwill Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfReconciliationOfChangesInIntangibleAssetsAndGoodwillExplanatory
427 Schedule goodwill and intangible asset allocation to CGUs Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesExplanatory
428 2312301 - Disclosure - Other Assets (Tables) Network

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 http://www.fairfax.ca/role/OtherAssetsTables
429 Implied Table Table

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430 Subclassifications of assets, liabilities and equities [abstract] Abstract ifrs-full:SubclassificationsOfAssetsLiabilitiesAndEquitiesAbstract
431 Disclosure of information for other assets Concept (Text Block (HTML)) For Period ffh:DisclosureOfInformationForOtherAssetsTableTextBlock
432 2314301 - Disclosure - Accounts Payable and Accrued Liabilities (Tables) Network

*

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 http://www.fairfax.ca/role/AccountsPayableAndAccruedLiabilitiesTables
433 Implied Table Table

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434 Subclassifications of assets, liabilities and equities [abstract] Abstract ifrs-full:SubclassificationsOfAssetsLiabilitiesAndEquitiesAbstract
435 Schedule of accounts payable and accrued liabilities Concept (Text Block (HTML)) For Period ffh:ScheduleOfAccountsPayableAndAccruedLiabilities1TableTextBlock
436 2315301 - Disclosure - Borrowings (Tables) Network

*

*

 http://www.fairfax.ca/role/BorrowingsTables
437 Implied Table Table

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438 Borrowings [abstract] Abstract ifrs-full:BorrowingsAbstract
439 Disclosure of the schedule of debt Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsExplanatory
440 Disclosure of borrowing repayments Concept (Text Block (HTML)) For Period ffh:DisclosureOfBorrowingRepaymentsTableTextBlock
441 2316301 - Disclosure - Total Equity (Tables) Network

*

*

 http://www.fairfax.ca/role/TotalEquityTables
442 Implied Table Table

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443 Share Capital, Reserves And Other Equity Interest [Abstract] Abstract ffh:ShareCapitalReservesAndOtherEquityInterestAbstract
444 Disclosure of classes of share capital Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfClassesOfShareCapitalExplanatory
445 Dividends paid Concept (Text Block (HTML)) For Period ffh:DividendsDeclared1TableTextBlock
446 Schedule of preferred shares Concept (Text Block (HTML)) For Period ffh:ScheduleOfPreferredSharesTableTextBlock
447 Schedule of AOCI Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfAnalysisOfOtherComprehensiveIncomeByItemExplanatory
448 Disclosure of non-controlling interests Concept (Text Block (HTML)) For Period ffh:ScheduleOfNonControllingInterestsTableTextBlock
449 Schedule Of Capitalization Concept (Text Block (HTML)) For Period ffh:ScheduleOfCapitalization1TableTextBlock
450 2317301 - Disclosure - Earnings per Share (Tables) Network

*

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 http://www.fairfax.ca/role/EarningsPerShareTables
451 Implied Table Table

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 implied:Table
452 Earnings per share [abstract] Abstract ifrs-full:EarningsPerShareAbstract
453 Schedule of earnings per share Concept (Text Block (HTML)) For Period ifrs-full:EarningsPerShareExplanatory
454 2318301 - Disclosure - Income Taxes (Tables) Network

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 http://www.fairfax.ca/role/IncomeTaxesTables
455 Implied Table Table

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456 Income Taxes [Abstract] Abstract ffh:IncomeTaxesAbstract
457 The company's provision for (recovery of) income taxes Concept (Text Block (HTML)) For Period ffh:MajorComponentsOfTaxExpenseIncomeTableTextBlock
458 Earnings before income taxes by jurisdiction Concept (Text Block (HTML)) For Period ffh:ScheduleOfIncomeBeforeIncomeTaxDomesticAndForeign1TableTextBlock
459 Reconciliations of the provision for (recovery of) income taxes Concept (Text Block (HTML)) For Period ffh:ReconciliationOfAccountingProfitMultipliedByApplicableTaxRatesAndAverageEffectiveTaxRateTableTextBlock
460 Income taxes refundable and payable Concept (Text Block (HTML)) For Period ffh:ScheduleOfIncomeTaxesRefundableAndPayableTableTextBlock
461 Changes net income taxes (payable) refundable Concept (Text Block (HTML)) For Period ffh:ScheduleOfChangesInIncomeTaxesRefundablePayableTableTextBlock
462 Changes in net deferred income tax asset Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsExplanatory
463 2319301 - Disclosure - Statutory Requirements (Tables) Network

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 http://www.fairfax.ca/role/StatutoryRequirementsTables
464 Implied Table Table

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465 Statutory Requirements [Abstract] Abstract ffh:StatutoryRequirementsAbstract
466 Schedule of dividend capacity available Concept (Text Block (HTML)) For Period ffh:ScheduleOfDividendCapacityAvailableTableTextBlock
467 2320301 - Disclosure - Pensions and Post Retirement Benefits (Tables) Network

*

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 http://www.fairfax.ca/role/PensionsAndPostRetirementBenefitsTables
468 Implied Table Table

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469 Pension And Post Retirement Benefits [Abstract] Abstract ffh:PensionAndPostRetirementBenefitsAbstract
470 Disclosure of defined benefit plans Concept (Text Block (HTML)) For Period ffh:ScheduleOfPensionAndPostRetirementBenefitsTableTextBlock
471 Pension and post retirement expenses recognized Concept (Text Block (HTML)) For Period ffh:DisclosureOfDefinedBenefitPlanAndDefinedContributionPlanExpenseRecognizedInProfitOrLossExplanatoryTableTextBlock
472 Pre-tax actuarial net gains (losses) recognized in the consolidated statements Concept (Text Block (HTML)) For Period ffh:DisclosureOfDefinedBenefitPlanExpenseRecognizedInOtherComprehensiveIncomeExplanatoryTableTextBlock
473 2322301 - Disclosure - Operating Leases (Tables) Network

*

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 http://www.fairfax.ca/role/OperatingLeasesTables
474 Implied Table Table

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475 Leases1 [Abstract] Abstract ffh:Leases1Abstract
476 Aggregate future minimum operating lease commitments Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeExplanatory
477 2323301 - Disclosure - Acquisitions and Divestitures (Tables) Network

*

*

 http://www.fairfax.ca/role/AcquisitionsAndDivestituresTables
478 Implied Table Table

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479 Business Combinations1 [Abstract] Abstract ffh:BusinessCombinations1Abstract
480 Disclosure of detailed information about business combinations Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDetailedInformationAboutBusinessCombinationsExplanatory
481 2324301 - Disclosure - Financial Risk Management (Tables) Network

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 http://www.fairfax.ca/role/FinancialRiskManagementTables
482 Implied Table Table

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 implied:Table
483 Disclosure of nature and extent of risks arising from financial instruments [abstract] Abstract ifrs-full:DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsAbstract
484 Concentration of risk by region and line of business based on gross premiums written Concept (Text Block (HTML)) For Period ffh:SchedulesOfConcentrationOfRiskByRiskFactor1TableTextBlock
485 Schedule of aggregate gross credit risk exposure Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfCreditRiskExposureExplanatory
486 Schedule of fixed income portfolio according to credit rating Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfExternalCreditExposuresExplanatory
487 Schedule of credit risk related to derivative contract counterparties Concept (Text Block (HTML)) For Period ffh:DisclosureOfCreditRiskRelatedToDerivativeContractCounterpartiesTableTextBlock
488 Schedule of gross reinsurance recoverable by reinsurer financial strength rating Concept (Text Block (HTML)) For Period ffh:DisclosureOfGrossReinsuranceRecoverableByReinsurerFinancialStrengthRatingTableTextBlock
489 Disclosure of maturity analysis for non-derivative financial liabilities Concept (Text Block (HTML)) For Period ifrs-full:MaturityAnalysisForNonderivativeFinancialLiabilities
490 Disclosure of maturity analysis for derivative financial liabilities Concept (Text Block (HTML)) For Period ifrs-full:MaturityAnalysisForDerivativeFinancialLiabilities
491 Schedule of potential impact of changes in interest rates on fixed asset portfolio Concept (Text Block (HTML)) For Period ffh:DisclosureOfPotentialImpactOfChangesInInterestRatesOnFixedIncomePortfolioTableTextBlock
492 Schedule of impact of equity and equity related holdings on the financial position Concept (Text Block (HTML)) For Period ffh:ScheduleOfImpactOfEquityAndEquityRelatedHoldingsOnTheFinancialPositionTableTextBlock
493 Schedule of potential impact of changes in the fair value of equity and equity related holdings Concept (Text Block (HTML)) For Period ffh:ScheduleOfPotentialImpactOfChangesInTheFairValueOfEquityAndEquityRelatedHoldingsTableTextBlock
494 Schedule of pre-tax foreign currency effect Concept (Text Block (HTML)) For Period ffh:ScheduleOfPreTaxForeignCurrencyEffectTableTextBlock
495 Schedule of effect of currency appreciation Concept (Text Block (HTML)) For Period ffh:ScheduleOfEffectOfCurrencyAppreciationTableTextBlock
496 Schedule of capital management, financial measurements Concept (Text Block (HTML)) For Period ffh:DisclosureOfDetailedInformationOnManagingCapitalExplanatoryTableTextBlock
497 2325301 - Disclosure - Segmented Information (Tables) Network

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 http://www.fairfax.ca/role/SegmentedInformationTables
498 Implied Table Table

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499 Operating Segments [Abstract] Abstract ffh:OperatingSegmentsAbstract
500 Disclosure of operating segments Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOperatingSegmentsExplanatory
501 Schedule of net premiums earned by product line Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfProductsAndServicesExplanatory
502 Disclosure of geographical regions Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfGeographicalAreasExplanatory
503 2326301 - Disclosure - Expenses (Tables) Network

*

*

 http://www.fairfax.ca/role/ExpensesTables
504 Implied Table Table

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 implied:Table
505 Analysis of income and expense [abstract] Abstract ifrs-full:AnalysisOfIncomeAndExpenseAbstract
506 Schedule of losses on claims, net, operating expenses and other expenses Concept (Text Block (HTML)) For Period ffh:ScheduleOfOtherOperatingCostAndExpenseByComponent1TableTextBlock
507 2327301 - Disclosure - Supplementary Cash Flow Information (Tables) Network

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 http://www.fairfax.ca/role/SupplementaryCashFlowInformationTables
508 Implied Table Table

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509 Cash Flow Statement [Abstract] Abstract ffh:CashFlowStatementAbstract
510 Schedule of supplemental balance sheet disclosures Concept (Text Block (HTML)) For Period ffh:DisclosureOfBalanceSheetInformationExplanatoryTableTextBlock
511 Schedule of cash flow, supplemental disclosures Concept (Text Block (HTML)) For Period ffh:DisclosureOfSupplementalCashFlowInformationExplanatoryTableTextBlock
512 2328301 - Disclosure - Related Party Transactions (Tables) Network

*

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 http://www.fairfax.ca/role/RelatedPartyTransactionsTables
513 Implied Table Table

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514 Related Party [Abstract] Abstract ffh:RelatedPartyAbstract
515 Schedule of related parties Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesExplanatory
516 2329301 - Disclosure - Subsidiaries (Tables) Network

*

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631 2405406 - Disclosure - Cash and Investments - Schedule of Fixed Income Maturity (Details) Network

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 http://www.fairfax.ca/role/CashAndInvestmentsScheduleOfFixedIncomeMaturityDetails
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646 2405407 - Disclosure - Cash and Investments - Schedule of Fair Value Measurement (Details) Network

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 http://www.fairfax.ca/role/CashAndInvestmentsScheduleOfFairValueMeasurementDetails
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714 2405409 - Disclosure - Cash and Investments - Fair Value Assets Measurement Techniques (Details) Network

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756 2405410 - Disclosure - Cash and Investments - Fair Value Disclosures (Narrative) (Details) Network

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786 2405411 - Disclosure - Cash and Investments - Schedule of Interest Income and Dividends (Details) Network

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 http://www.fairfax.ca/role/CashAndInvestmentsScheduleOfInterestIncomeAndDividendsDetails
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807 2405412 - Disclosure - Cash and Investments - Net Gains (Losses) on Investments (Details) Network

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843 Quess Member ffh:QuessCorpLimitedMember
844 EXCO Resources, Inc Member ffh:EXCOResourcesIncMember
845 ICICI Lombard General Insurance Company Limited Member ffh:ICICILombardGeneralInsuranceCompanyLimitedMember
846 Grivalia Member ffh:GrivaliaPropertiesREICMember
847 Investment [Line Items] LineItems invest:InvestmentLineItems
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849 Net change in unrealized gains (losses) Concept (Monetary) For Period Credit ifrs-full:GainsLossesRecognisedInProfitOrLossAttributableToChangeInUnrealisedGainsOrLossesForAssetsHeldAtEndOfPeriodFairValueMeasurement
850 Net gains (losses) on investments Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLoss
851 Fair value of equity method investment Concept (Monetary) As Of Debit ifrs-full:FairValueOfInvestmentsInEquityInstrumentsDesignatedAsMeasuredAtFairValueThroughOtherComprehensiveIncome
852 Share of profit (loss) of associates Concept (Monetary) For Period Credit ifrs-full:ShareOfProfitLossOfAssociatesAccountedForUsingEquityMethod
853 Ownership percentage in equity method investment Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInAssociate
854 Proceeds from sales of interests in associates Concept (Monetary) For Period Debit ifrs-full:ProceedsFromSalesOfInterestsInAssociates
855 Unrealized gain on securities, reclassified to realized gain Concept (Monetary) For Period Credit ffh:UnrealizedGainOnSecuritiesReclassifiedToRealizedGain
856 2406402 - Disclosure - Investments in Associates - Investments in Associates (Details) Network

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857 Disclosure of associates [table] Table

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858 Consolidated and separate financial statements [axis] Axis ifrs-full:ConsolidatedAndSeparateFinancialStatementsAxis
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861 Non-insurance companies Member ffh:NonInsuranceCompanyMember
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863 Non-insurance companies, Fairfax Africa Member ffh:NonInsuranceFairfaxAfricaMember
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866 Balance Sheet Location1 [Domain] Member ffh:BalanceSheetLocation1Domain
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869 Fairfax Africa cash and portfolio investments Member ffh:FairfaxAfricaCashAndPortfolioInvestmentsMember
870 Associates [axis] Axis ifrs-full:SignificantInvestmentsInAssociatesAxis
871 Entity's total for associates [member] Member ifrs-full:EntitysTotalForAssociatesMember
872 Insurance and reinsurance associates Member ffh:InsuranceAndReinsuranceAssociatesMember
873 Eurolife ERB Insurance Group Holdings S.A. Member ffh:EurolifeERBInsuranceGroupHoldingsS.A.Member
874 Gulf Insurance Company Member ffh:GulfInsuranceCompanyMember
875 Thai Re Public Company Limited Member ffh:ThaiRePublicCompanyLimitedMember
876 Bank for Investment and Development of Vietnam Insurance Joint Stock Corporation Member ffh:BankforInvestmentandDevelopmentofVietnamInsuranceJointStockCorporationMember
877 Ambridge Partners LLC Member ffh:AmbridgePartnersLLCMember
878 Singapore Reinsurance Corporation Limited Member ffh:SingaporeReinsuranceCorporationLimitedMember
879 Onlia Holdings Inc. Member ffh:OnliaHoldingsInc.Member
880 Falcon Insurance PLC Member ffh:FalconInsurancePLCMember
881 Camargue Underwriting Managers Group Ltd. Member ffh:CamargueUnderwritingManagersGroupLtd.Member
882 Go Digit Infoworks Services Private Limited Member ffh:GoDigitInfoworksServicesPrivateLimitedMember
883 ICICI Lombard General Insurance Company Limited Member ffh:ICICILombardGeneralInsuranceCompanyLimitedMember
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885 Astarta Holding N.V. Member ffh:AstartaHoldingN.V.Member
886 Farmers Edge Inc Member ffh:FarmersEdgeIncMember
887 Non-insurance associates, Real estate Member ffh:NonInsuranceAssociatesRealEstateMember
888 KWF Real Estate Ventures Limited Partnerships Member ffh:KWFRealEstateVenturesLimitedPartnershipsMember
889 Other, Real estate Member ffh:NonInsuranceAssociatesOtherRealEstateMember
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891 Quess Member ffh:QuessCorpLimitedMember
892 Bangalore International Airport Limited Member ffh:BangaloreInternationalAirportLimitedMember
893 IIFL Holdings Limited Member ffh:IIFLHoldingsLimitedMember
894 Catholic Syrian Bank Ltd. Member ffh:TheCatholicSyrianBankLtd.Member
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896 Non-insurance associates, Africa Member ffh:NonInsuranceAssociatesAfricaMember
897 Atlas Mara Limited Member ffh:AtlasMaraLimitedMember
898 AFGRI Proprietary Limited Member ffh:AFGRIProprietaryLimitedMember
899 Other, Africa Member ffh:NonInsuranceAssociatesOtherAfricaMember
900 Non-insurance associates, Other Member ffh:NonInsuranceAssociatesOtherMember
901 Resolute Forest Products Inc. Member ffh:ResoluteForestProductsInc.Member
902 APR Energy PLC Member ffh:APREnergyPLCMember
903 Seaspan Corporation Member ffh:SeaspanCorporationMember
904 Peak Achievement Athletics Member ffh:PeakAchievementAthleticsMember
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912 Carrying value Concept (Monetary) As Of Debit ifrs-full:InvestmentsInAssociates
913 Total carrying value Concept (Monetary) As Of Debit ifrs-full:InvestmentsInSubsidiariesJointVenturesAndAssociates
914 Share of profit (loss) of associates Concept (Monetary) For Period Credit ifrs-full:ShareOfProfitLossOfAssociatesAccountedForUsingEquityMethod
915 2406403 - Disclosure - Investments in Associates - Additional Information (Details) Network

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916 Disclosure of associates [table] Table

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 ifrs-full:DisclosureOfSignificantInvestmentsInAssociatesTable
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918 Financial instruments, class [member] Member ifrs-full:ClassesOfFinancialInstrumentsMember
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920 Income Statement, Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations1 [Axis] Axis ffh:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations1Axis
921 Income Statement, Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations1 [Domain] Member ffh:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations1Domain
922 Investment property Member ifrs-full:InvestmentPropertyMember
923 Borrowings by name [axis] Axis ifrs-full:BorrowingsByNameAxis
924 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
925 Unsecured debentures due February 14, 2025 Member ffh:UnsecureddebenturesdueFebruary142025Member
926 Unsecured debentures due 2026 Member ffh:Unsecureddebenturesdue2026Member
927 Subsequent Event Type [Axis] Axis ffh:SubsequentEventType1Axis
928 Subsequent Event Type [Domain] Member ffh:SubsequentEventType1Domain
929 Subsequent event Member ffh:SubsequentEvent1Member
930 Statement Scenario [Axis] Axis ffh:StatementScenario1Axis
931 Statement Scenario [Domain] Member ffh:StatementScenario1Domain
932 Forecast Member ffh:ScenarioForecast1Member
933 Classes of assets [axis] Axis ifrs-full:ClassesOfAssetsAxis
934 Assets [member] Member ifrs-full:ClassesOfAssetsMember
935 Investments accounted for using equity method Member ifrs-full:InvestmentsAccountedForUsingEquityMethodMember
936 Continuing and discontinued operations [axis] Axis ifrs-full:ContinuingAndDiscontinuedOperationsAxis
937 Aggregate continuing and discontinued operations [member] Member ifrs-full:AggregateContinuingAndDiscontinuedOperationsMember
938 Arbor Memorial Services Inc. Member ffh:ArborMemorialServicesInc.Member
939 Navacord Inc. Member ffh:NavacordInc.Member
940 Range [axis] Axis ifrs-full:RangeAxis
941 Ranges [member] Member ifrs-full:RangesMember
942 Minimum Member ifrs-full:BottomOfRangeMember
943 Maximum Member ifrs-full:TopOfRangeMember
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945 Entity [Domain] Member dei:EntityDomain
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948 Fairfax Africa Member ffh:FairfaxAfricaHoldingsCorporationMember
949 GroCapital Holdings Proprietary Limited Member ffh:GroCapitalHoldingsProprietaryLimitedMember
950 Associates [axis] Axis ifrs-full:SignificantInvestmentsInAssociatesAxis
951 Entity's total for associates [member] Member ifrs-full:EntitysTotalForAssociatesMember
952 Thai Re Public Company Limited Member ffh:ThaiRePublicCompanyLimitedMember
953 Onlia Holdings Inc. Member ffh:OnliaHoldingsInc.Member
954 Astarta Holding N.V. Member ffh:AstartaHoldingN.V.Member
955 KWF Real Estate Ventures Limited Partnerships Member ffh:KWFRealEstateVenturesLimitedPartnershipsMember
956 Seaspan Corporation Member ffh:SeaspanCorporationMember
957 Quess Member ffh:QuessCorpLimitedMember
958 Bangalore International Airport Limited Member ffh:BangaloreInternationalAirportLimitedMember
959 AFGRI Proprietary Limited Member ffh:AFGRIProprietaryLimitedMember
960 Catholic Syrian Bank Ltd. Member ffh:TheCatholicSyrianBankLtd.Member
961 GroCapital Holdings Proprietary Limited Member ffh:GroCapitalHoldingsProprietaryLimitedMember
962 South African Bank Of Athens Member ffh:SouthAfricanBankOfAthensMember
963 Alltrust Insurance Company of China Ltd. Member ffh:AlltrustInsuranceCompanyofChinaLtd.Member
964 Philafrica Foods Proprietary Ltd Member ffh:PhilafricaFoodsProprietaryLtdMember
965 Consolidated Infrastructure Group Member ffh:ConsolidatedInfrastructureGroupMember
966 Sanmar Chemicals Group Member ffh:SanmarChemicalsGroupMember
967 Disclosure of associates [line items] LineItems ifrs-full:DisclosureOfSignificantInvestmentsInAssociatesLineItems
968 Ownership percentage Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInAssociate
969 Percentage of economic interests acquired Concept (Percent) As Of ffh:PercentageOfOwnershipInterestsAcquired
970 Number of securities called by warrants or rights Concept (Shares) As Of ffh:ClassofWarrantorRightNumberofSecuritiesCalledbyWarrantsorRights
971 Percentage of common shares acquired Concept (Percent) As Of ifrs-full:PercentageOfVotingEquityInterestsAcquired
972 Consideration paid Concept (Monetary) For Period Credit ifrs-full:ConsiderationPaidReceived
973 Consideration payable Concept (Monetary) As Of Credit ffh:ConsiderationPayable
974 Fair value of investments in associates Concept (Monetary) As Of Debit ffh:InvestmentsInAssociatesFairValue
975 Total carrying value Concept (Monetary) As Of Debit ifrs-full:InvestmentsInSubsidiariesJointVenturesAndAssociates
976 Purchases of investments in associates Concept (Monetary) For Period Credit ifrs-full:PurchaseOfInterestsInAssociates
977 Non-cash impairment charge Concept (Monetary) For Period Debit ifrs-full:ImpairmentLoss
978 Share of profit (loss) of associates Concept (Monetary) For Period Credit ifrs-full:ShareOfProfitLossOfAssociatesAccountedForUsingEquityMethod
979 Distributions and dividends received from associates Concept (Monetary) For Period Debit ifrs-full:DividendsReceivedFromAssociatesClassifiedAsInvestingActivities
980 Interest rate Concept (Percent) As Of ifrs-full:BorrowingsInterestRate
981 Warrants, outstanding Concept (Shares) As Of ffh:ClassofWarrantorRightOutstanding
982 Warrants, exercise price Concept (Share) For Period invest:InvestmentWarrantsExercisePrice
983 Warrant, term Concept (xbrli:durationItemType) For Period ffh:InvestmentWarrantsTerm
984 Bonds Concept (Monetary) As Of Debit ifrs-full:DebtInstrumentsHeld
985 Investments in associates Concept (Monetary) As Of Debit ifrs-full:InvestmentsInAssociates
986 Cash consideration Concept (Monetary) For Period Credit ifrs-full:PortionOfConsiderationPaidReceivedConsistingOfCashAndCashEquivalents
987 Voting rights available Concept (Percent) As Of ffh:ProportionOfVotingRightsAvailable
988 Number of bank branches Concept (Integer) As Of ffh:NumberOfBankBranches
989 Number of automated teller machines Concept (Integer) As Of ffh:NumberOfAutomatedTellerMachines
990 Fair value of equity method investment Concept (Monetary) As Of Debit ifrs-full:FairValueOfInvestmentsInEquityInstrumentsDesignatedAsMeasuredAtFairValueThroughOtherComprehensiveIncome
991 Proceeds from sales of interests in associates Concept (Monetary) For Period Debit ifrs-full:ProceedsFromSalesOfInterestsInAssociates
992 Net realized gains (losses) Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnDisposalsOfInvestments
993 Realized gain on derivatives Concept (Monetary) For Period Credit ifrs-full:GainsOnChangeInFairValueOfDerivatives
994 Net change in unrealized gains (losses) Concept (Monetary) For Period Credit ifrs-full:GainsLossesRecognisedInProfitOrLossAttributableToChangeInUnrealisedGainsOrLossesForAssetsHeldAtEndOfPeriodFairValueMeasurement
995 Amount of debt converted Concept (Monetary) For Period Credit ffh:DebtConversionConvertedInstrumentAmount2
996 Principal amount of bonds Concept (Monetary) As Of Credit ifrs-full:BondsIssued
997 Proceeds from issue of bonds Concept (Monetary) For Period Debit ifrs-full:ProceedsFromIssueOfBondsNotesAndDebentures
998 Bonds at fair value Concept (Monetary) As Of Debit ifrs-full:FinancialAssetsAtFairValue
999 2406404 - Disclosure - Investments in Associates - Fair Value Assumptions (Details) Network

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1000 Disclosure of associates [table] Table

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 ifrs-full:DisclosureOfSignificantInvestmentsInAssociatesTable
1001 Range [axis] Axis ifrs-full:RangeAxis
1002 Ranges [member] Member ifrs-full:RangesMember
1003 Minimum Member ifrs-full:BottomOfRangeMember
1004 Maximum Member ifrs-full:TopOfRangeMember
1005 Associates [axis] Axis ifrs-full:SignificantInvestmentsInAssociatesAxis
1006 Entity's total for associates [member] Member ifrs-full:EntitysTotalForAssociatesMember
1007 Astarta Holding N.V. Member ffh:AstartaHoldingN.V.Member
1008 Atlas Mara Limited Member ffh:AtlasMaraLimitedMember
1009 Quess Member ffh:QuessCorpLimitedMember
1010 Resolute Forest Products Inc. Member ffh:ResoluteForestProductsInc.Member
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1012 After-tax discount rate Concept (Percent) As Of ifrs-full:DescriptionOfDiscountRatesAppliedToCashFlowProjections
1013 Long-term growth rate Concept (Percent) As Of ifrs-full:DescriptionOfGrowthRateUsedToExtrapolateCashFlowProjections
1014 Non-cash impairment charge Concept (Monetary) For Period Debit ifrs-full:ImpairmentLoss
1015 2406405 - Disclosure - Investments in Associates - Summarized Balance Sheet and Statement of Earnings (Details) Network

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1016 Disclosure of associates [table] Table

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 ifrs-full:DisclosureOfSignificantInvestmentsInAssociatesTable
1017 Subsequent Event Type [Axis] Axis ffh:SubsequentEventType1Axis
1018 Subsequent Event Type [Domain] Member ffh:SubsequentEventType1Domain
1019 Subsequent event Member ffh:SubsequentEvent1Member
1020 Classes of financial instruments [axis] Axis ifrs-full:ClassesOfFinancialInstrumentsAxis
1021 Financial instruments, class [member] Member ifrs-full:ClassesOfFinancialInstrumentsMember
1022 Class A common shares Member ffh:CommonClassAMember
1023 Tranche 1 debentures Member ffh:Tranche1debenturesMember
1024 Commitment to purchase Tranche 2 warrants Member ffh:CommitmenttopurchaseTranche2warrantsMember
1025 Commitment to purchase Tranche 2 debentures Member ffh:CommitmenttopurchaseTranche2debenturesMember
1026 Right to receive $8.05 warrants Member ffh:Righttoreceive8.05warrantsMember
1027 $8.05 warrants Member ffh:A8.05warrantsMember
1028 Associates [axis] Axis ifrs-full:SignificantInvestmentsInAssociatesAxis
1029 Entity's total for associates [member] Member ifrs-full:EntitysTotalForAssociatesMember
1030 Seaspan Corporation Member ffh:SeaspanCorporationMember
1031 Disclosure of associates [line items] LineItems ifrs-full:DisclosureOfSignificantInvestmentsInAssociatesLineItems
1032 Carrying value Concept (Monetary) As Of Debit ifrs-full:InvestmentsInAssociates
1033 Fair value of investments in associates Concept (Monetary) As Of Debit ffh:InvestmentsInAssociatesFairValue
1034 Net gains (losses) on investments Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLoss
1035 Number of securities called by warrants or rights Concept (Shares) As Of ffh:ClassofWarrantorRightNumberofSecuritiesCalledbyWarrantsorRights
1036 Consideration paid Concept (Monetary) For Period Credit ifrs-full:ConsiderationPaidReceived
1037 Warrants, outstanding Concept (Shares) As Of ffh:ClassofWarrantorRightOutstanding
1038 Warrants, intrinsic value Concept (Monetary) As Of Credit ffh:InvestmentWarrantsIntrinsicValue
1039 Warrants, costs to acquire Concept (Monetary) For Period Debit ffh:InvestmentWarrantsCoststoAcquire
1040 Share price Concept (Share) As Of ffh:Shareprice
1041 Warrants, exercise price Concept (Share) For Period invest:InvestmentWarrantsExercisePrice
1042 2406406 - Disclosure - Investments in Associates - Aggregate Cash Investments (Details) Network

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1043 Disclosure of financial assets to which overlay approach is applied for associates [table] Table

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 ifrs-full:DisclosureOfFinancialAssetsToWhichOverlayApproachIsAppliedForAssociatesTable
1044 Classes of financial instruments [axis] Axis ifrs-full:ClassesOfFinancialInstrumentsAxis
1045 Financial instruments, class [member] Member ifrs-full:ClassesOfFinancialInstrumentsMember
1046 Tranche 1 debentures and warrants Member ffh:Tranche1debenturesandwarrantsMember
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1048 Tranche 2 debentures and warrants Member ffh:Tranche2debenturesandwarrantsMember
1049 Class A common shares through early exercise of Tranche 2 warrants Member ffh:ClassAcommonsharesthroughearlyexerciseofTranche2warrantsMember
1050 Subsequent Event Type [Axis] Axis ffh:SubsequentEventType1Axis
1051 Subsequent Event Type [Domain] Member ffh:SubsequentEventType1Domain
1052 Subsequent event Member ffh:SubsequentEvent1Member
1053 Associates [axis] Axis ifrs-full:SignificantInvestmentsInAssociatesAxis
1054 Entity's total for associates [member] Member ifrs-full:EntitysTotalForAssociatesMember
1055 Seaspan Corporation Member ffh:SeaspanCorporationMember
1056 Disclosure of financial assets to which overlay approach is applied for associates [line items] LineItems ifrs-full:DisclosureOfFinancialAssetsToWhichOverlayApproachIsAppliedForAssociatesLineItems
1057 Consideration paid Concept (Monetary) For Period Credit ifrs-full:ConsiderationPaidReceived
1058 2406407 - Disclosure - Investments in Associates - Associates Rollforward (Details) Network

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1059 Disclosure of associates [table] Table

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 ifrs-full:DisclosureOfSignificantInvestmentsInAssociatesTable
1060 Associates [axis] Axis ifrs-full:SignificantInvestmentsInAssociatesAxis
1061 Entity's total for associates [member] Member ifrs-full:EntitysTotalForAssociatesMember
1062 Investments in associates Member ffh:InvestmentsInAssociatesMember
1063 Joint arrangements Member ifrs-full:JointVenturesMember
1064 Fairfax India Member ffh:FairfaxIndiaHoldingsCorporationMember
1065 Fairfax Africa Member ffh:FairfaxAfricaHoldingsCorporationMember
1066 Associates Member ifrs-full:AssociatesMember
1067 Quess Member ffh:QuessCorpLimitedMember
1068 Disclosure of associates [line items] LineItems ifrs-full:DisclosureOfSignificantInvestmentsInAssociatesLineItems
1069 Schedule Of Associates [Roll Forward] Abstract ffh:ScheduleOfAssociatesRollForward
1070 Balance - January 1 Concept (Monetary) As Of Debit ifrs-full:InvestmentsInSubsidiariesJointVenturesAndAssociates
1071 Share of profit Concept (Monetary) For Period Credit ffh:ShareOfProfitLossOfAssociatesAccountedForUsingEquityMethodBeforeImpairment
1072 Impairment charges Concept (Monetary) For Period Debit ifrs-full:ImpairmentLossRecognisedInProfitOrLoss
1073 Share of other comprehensive income (loss), excluding gains (losses) on defined benefit plans Concept (Monetary) For Period Credit ffh:ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodExcludingDefinedBenefitPlansBeforeTax
1074 Share of losses on defined benefit plans Concept (Monetary) For Period Credit ffh:ShareOfOtherComprehensiveIncomeOnDefinedBenefitPlansOfAssociatesAndJointVenturesAccountedForUsingEquityMethodBeforeTax
1075 Share of pre-tax comprehensive income (loss) of associates and joint arrangements Concept (Monetary) For Period Credit ifrs-full:ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodBeforeTax
1076 Distributions and dividends received from associates Concept (Monetary) For Period Debit ifrs-full:DividendsReceivedFromAssociatesClassifiedAsInvestingActivities
1077 Purchases and acquisitions Concept (Monetary) For Period Credit ifrs-full:PurchaseOfInterestsInAssociates
1078 Divestitures and other net changes in capitalization Concept (Monetary) For Period Debit ifrs-full:ProceedsFromSalesOfInterestsInAssociates
1079 Reclassifications Concept (Monetary) For Period Credit ffh:UnrealizedGainOnSecuritiesReclassifiedToRealizedGain
1080 Foreign exchange effect Concept (Monetary) For Period Credit ffh:InvestmentsinAssociatesGainLossOnForeignCurrencyTranslation
1081 Balance - December 31 Concept (Monetary) As Of Debit ifrs-full:InvestmentsInSubsidiariesJointVenturesAndAssociates
1082 2407402 - Disclosure - Short Sales and Derivatives - Financial Instruments (Details) Network

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1083 Disclosure of financial assets [table] Table

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1084 Classes of financial instruments [axis] Axis ifrs-full:ClassesOfFinancialInstrumentsAxis
1085 Financial instruments, class [member] Member ifrs-full:ClassesOfFinancialInstrumentsMember
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1087 Equity index total return swaps – short positions Member ffh:EquityIndexTotalReturnSwapsShortPositionsMember
1088 Equity total return swaps – long positions Member ffh:EquityTotalReturnSwapsLongPositionsMember
1089 Equity warrants and call options Member ffh:EquityWarrantsAndCallOptionsMember
1090 Equity warrant forward contracts Member ffh:EquityWarrantForwardContactsMember
1091 CPI-linked derivative contracts Member ffh:ConsumerPriceIndexLinkedDerivativesMember
1092 U.S. treasury bond forward contracts Member ffh:USTreasuryBondForwardContractsMember
1093 Foreign exchange forward contracts Member ffh:ForeignExchangeForwardContractsMember
1094 Foreign currency options Member ffh:ForeignCurrencyOptionsMember
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1098 Notional amount Concept (Monetary) As Of ifrs-full:NotionalAmount
1099 Market value Concept (Monetary) As Of Debit ifrs-full:DerivativeFinancialAssets
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1101 2407403 - Disclosure - Short Sales and Derivatives - Additional Information (Details) Network

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1102 Disclosure of financial assets [table] Table

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 ifrs-full:DisclosureOfFinancialAssetsTable
1103 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
1104 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
1105 Canada Member country:CA
1106 Europe Member srt:EuropeMember
1107 Types of risks [axis] Axis ifrs-full:TypesOfRisksAxis
1108 Risks [member] Member ifrs-full:TypesOfRisksMember
1109 Other price risk Member ifrs-full:OtherPriceRiskMember
1110 Credit risk Member ifrs-full:CreditRiskMember
1111 Types of hedges [axis] Axis ifrs-full:TypesOfHedgesAxis
1112 Hedges [member] Member ifrs-full:TypesOfHedgesMember
1113 Hedges of net investment in foreign operations Member ifrs-full:HedgesOfNetInvestmentInForeignOperationsMember
1114 Borrowings by name [axis] Axis ifrs-full:BorrowingsByNameAxis
1115 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
1116 Unsecured senior notes Member ffh:UnsecuredSeniorNotesMember
1117 Classes of financial instruments [axis] Axis ifrs-full:ClassesOfFinancialInstrumentsAxis
1118 Financial instruments, class [member] Member ifrs-full:ClassesOfFinancialInstrumentsMember
1119 Equity total return swaps – short positions, investment purposes Member ffh:EquityTotalReturnSwapsShortPositionInvestmentPurposesMember
1120 Equity index total return swaps – short positions, investment purposes Member ffh:EquityIndexTotalReturnSwapsShortPositionInvestmentPurposesMember
1121 Equity total return swaps – short positions Member ffh:EquityTotalReturnSwapsShortPositionsMember
1122 Equity total return swaps – long positions Member ffh:EquityTotalReturnSwapsLongPositionsMember
1123 Equity total return swaps – long positions, individual equities Member ffh:EquityTotalReturnSwapsLongPositionsIndividualEquitiesMember
1124 U.S. treasury bond forward contracts Member ffh:USTreasuryBondForwardContractsMember
1125 CPI-linked derivative contracts Member ffh:ConsumerPriceIndexLinkedDerivativesMember
1126 Cash Member ffh:CashAndCashEquivalentsAndShortTermInvestmentsMember
1127 Government securities Member ffh:USGovernmentDebtSecurities1Member
1128 Disclosure of financial assets [line items] LineItems ifrs-full:DisclosureOfFinancialAssetsLineItems
1129 Notional amount Concept (Monetary) As Of ifrs-full:NotionalAmount
1130 Net cash paid (received) for derivative closures and reset provisions Concept (Monetary) For Period Credit ffh:PaymentsForProceedsFromDerivativesSettledAndResetProvisions
1131 Notional amount of derivatives settled Concept (Monetary) As Of ifrs-full:NominalOrPrincipalAmountOfFinancialInstrumentOnDiscontinuationOfMeasurementAtFairValueThroughProfitOrLossBecauseCreditDerivativeIsUsedToManageCreditRisk
1132 Net gains (losses) on investments Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLoss
1133 Realized gain (loss) on derivatives Concept (Monetary) For Period Credit ifrs-full:GainLossOnDesignationOfFinancialInstrumentAsMeasuredAtFairValueThroughProfitOrLossBecauseCreditDerivativeIsUsedToManageCreditRisk
1134 Unrealized gain (loss) Concept (Monetary) For Period Credit ffh:UnrealizedGainLossOnDerivatives1
1135 Assets pledged for short sale and derivative obligations, at cost Concept (Monetary) As Of Debit ffh:FinancialAssetsPledgedAsCollateralForShortSaleAndDerivativeLiabilitiesAtAmortizedCost
1136 Assets pledged for short sale and derivative obligations, collateral, entering derivative contracts Concept (Monetary) As Of Debit ffh:FinancialAssetsPledgedAsCollateralForLiabilitiesOrContingentLiabilitiesEnteringDerivativeContracts
1137 Assets pledged for short sale and derivative obligations, collateral, fair value changes Concept (Monetary) As Of Debit ffh:FinancialAssetsPledgedAsCollateralForLiabilitiesOrContingentLiabilitiesFairValueChanges
1138 Average life (in years) Concept (xbrli:durationItemType) For Period ffh:DerivativeAverageRemainingMaturity2
1139 Net change in unrealized gains (losses) Concept (Monetary) For Period Credit ifrs-full:GainsLossesRecognisedInProfitOrLossAttributableToChangeInUnrealisedGainsOrLossesForAssetsHeldAtEndOfPeriodFairValueMeasurement
1140 Financial assets pledged as liabilities Concept (Monetary) As Of Debit ifrs-full:FinancialAssetsPledgedAsCollateralForLiabilitiesOrContingentLiabilities
1141 Borrowings Concept (Monetary) As Of Credit ifrs-full:HedgedItemLiabilities
1142 Borrowings at fair value Concept (Monetary) As Of Credit ffh:HedgedItemLiabilitiesFairValue
1143 Gains (losses) on hedge of net investment Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeNetOfTaxHedgesOfNetInvestmentsInForeignOperations
1144 2407404 - Disclosure - Short Sales and Derivatives - Underlying CPI Index (Details) Network

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 http://www.fairfax.ca/role/ShortSalesAndDerivativesUnderlyingCpiIndexDetails
1145 Disclosure of financial assets [table] Table

*

*

 ifrs-full:DisclosureOfFinancialAssetsTable
1146 Derivative Instrument [Axis] Axis ffh:DerivativeInstrumentAxis
1147 Derivative Contract [Domain] Member ffh:DerivativeContractDomain
1148 Payout At Maturity Scenario 1 Member ffh:PayoutAtMaturityScenario1Member
1149 Payout At Maturity Scenario 2 Member ffh:PayoutAtMaturityScenario2Member
1150 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
1151 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
1152 United States Member country:US
1153 United States, 1 Member ffh:UnitedStatesOneMember
1154 United States, 2 Member ffh:UnitedStatesTwoMember
1155 European Union Member ffh:EuropeanUnion1Member
1156 United Kingdom Member country:GB
1157 France Member country:FR
1158 Classes of financial instruments [axis] Axis ifrs-full:ClassesOfFinancialInstrumentsAxis
1159 Financial instruments, class [member] Member ifrs-full:ClassesOfFinancialInstrumentsMember
1160 CPI-linked derivative contracts Member ffh:ConsumerPriceIndexLinkedDerivativesMember
1161 Disclosure of financial assets [line items] LineItems ifrs-full:DisclosureOfFinancialAssetsLineItems
1162 Floor rate Concept (Percent) As Of ffh:DerivativeFloorInterestRate1
1163 Average life (in years) Concept (xbrli:durationItemType) For Period ffh:DerivativeAverageRemainingMaturity2
1164 Notional amount Concept (Monetary) As Of ifrs-full:NotionalAmount
1165 Weighted average index value or strike price (usd per unit) Concept (Decimal) As Of ffh:DerivativeAveragePriceRiskOptionStrikePrice1
1166 Index value at period end (usd per unit) Concept (Decimal) As Of ffh:UnderlyingDerivativeIndexValue
1167 Cost Concept (Monetary) As Of Debit ifrs-full:FinancialAssets
1168 Cost (in bps) Concept (Percent) As Of ffh:FinancialAssetsExpressedAsPointSpreadPercentage
1169 Market value Concept (Monetary) As Of Debit ifrs-full:DerivativeFinancialAssets
1170 Market value (in bps) Concept (Percent) As Of ffh:FinancialAssetsFairValueExpressedAsPointSpreadPercentage
1171 Unrealized gain (loss) Concept (Monetary) For Period Credit ffh:UnrealizedGainLossOnDerivatives1
1172 2408402 - Disclosure - Insurance Contract Liabilities (Details) Network

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 http://www.fairfax.ca/role/InsuranceContractLiabilitiesDetails
1173 Disclosure of net, gross and reinsurer's share for amounts arising from insurance contracts [table] Table

*

*

 ifrs-full:DisclosureOfNetGrossAndReinsurersShareForAmountsArisingFromInsuranceContractsTable
1174 Amounts arising from insurance contracts [axis] Axis ifrs-full:AmountsArisingFromInsuranceContractsAxis
1175 Net amount arising from insurance contracts [member] Member ifrs-full:NetAmountArisingFromInsuranceContractsMember
1176 Gross Member ifrs-full:GrossAmountArisingFromInsuranceContractsMember
1177 Ceded Member ifrs-full:ReinsurersShareOfAmountArisingFromInsuranceContractsMember
1178 Net Member ffh:NetInsuranceContractLiabilitiesMember
1179 Disclosure of net, gross and reinsurer's share for amounts arising from insurance contracts [line items] LineItems ifrs-full:DisclosureOfNetGrossAndReinsurersShareForAmountsArisingFromInsuranceContractsLineItems
1180 Provision for unearned premiums Concept (Monetary) As Of Credit ifrs-full:UnearnedPremiums
1181 Provision for losses and loss adjustment expenses Concept (Monetary) As Of Credit ffh:LiabilityForClaimsAndClaimsAdjustmentExpense1
1182 Total insurance contract liabilities Concept (Monetary) As Of Credit ifrs-full:LiabilitiesArisingFromInsuranceContracts
1183 Total insurance contract liabilities, Current Concept (Monetary) As Of Credit ffh:LiabilitiesArisingFromInsuranceContractsCurrent
1184 Total ceded insurance contract liabilities, Current Concept (Monetary) As Of Debit ffh:CededLiabilitiesArisingFromInsuranceContractsCurrent
1185 Total insurance contract liabilities, net, Current Concept (Monetary) As Of Credit ffh:LiabilitiesArisingFromInsuranceContractsNetCurrent
1186 Total insurance contract liabilities, Non-current Concept (Monetary) As Of Credit ffh:LiabilitiesArisingFromInsuranceContractsNoncurrent
1187 Total ceded insurance contract liabilities, Non-current Concept (Monetary) As Of Debit ffh:CededLiabilitiesArisingFromInsuranceContractsNoncurrent
1188 Total insurance contract liabilities, net, Non-current Concept (Monetary) As Of Credit ffh:LiabilitiesArisingFromInsuranceContractsNetNoncurrent
1189 Total insurance contract liabilities, Ceded Concept (Monetary) As Of Debit ffh:CededLiabilitiesArisingFromInsuranceContracts
1190 Total insurance contract liabilities, Net Concept (Monetary) As Of Credit ffh:LiabilitiesArisingFromInsuranceContractsNet
1191 2408403 - Disclosure - Insurance Contract Liabilities - Additional Information (Details) Network

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 http://www.fairfax.ca/role/InsuranceContractLiabilitiesAdditionalInformationDetails
1192 Disclosure of net, gross and reinsurer's share for amounts arising from insurance contracts [table] Table

*

*

 ifrs-full:DisclosureOfNetGrossAndReinsurersShareForAmountsArisingFromInsuranceContractsTable
1193 Statement Scenario [Axis] Axis ffh:StatementScenario1Axis
1194 Statement Scenario [Domain] Member ffh:StatementScenario1Domain
1195 Forecast Member ffh:ScenarioForecast1Member
1196 Counterparty Name [Axis] Axis srt:CounterpartyNameAxis
1197 Counterparty Name [Domain] Member srt:RepurchaseAgreementCounterpartyNameDomain
1198 UK Insurer Member ffh:UKInsurerMember
1199 Legal Entity [Axis] Axis dei:LegalEntityAxis
1200 Entity [Domain] Member dei:EntityDomain
1201 European Run-off Member ffh:EuropeanRunOffMember
1202 RiverStone (UK) Member ffh:RiverStoneInsuranceUKLimitedMember
1203 Business combinations [axis] Axis ifrs-full:BusinessCombinationsAxis
1204 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
1205 RiverStone (UK) Member ffh:RiverStoneInsuranceUKLimitedMember
1206 Amounts arising from insurance contracts [axis] Axis ifrs-full:AmountsArisingFromInsuranceContractsAxis
1207 Net amount arising from insurance contracts [member] Member ifrs-full:NetAmountArisingFromInsuranceContractsMember
1208 Net Member ffh:NetInsuranceContractLiabilitiesMember
1209 Disclosure of net, gross and reinsurer's share for amounts arising from insurance contracts [line items] LineItems ifrs-full:DisclosureOfNetGrossAndReinsurersShareForAmountsArisingFromInsuranceContractsLineItems
1210 Provision for losses and loss adjustment expenses Concept (Monetary) As Of Credit ffh:LiabilityForClaimsAndClaimsAdjustmentExpense1
1211 Net loss reserves, case reserves Concept (Monetary) As Of Credit ifrs-full:ClaimsReportedByPolicyholders
1212 Net loss reserves, IBNR Concept (Monetary) As Of Credit ifrs-full:ClaimsIncurredButNotReported
1213 Gain related to Part VII transfer Concept (Monetary) For Period Credit ffh:BusinessCombinationGainLossRelatedToInsuranceContractsAcquiredInBusinessCombinationsOrPortfolioTransfer
1214 Insurance contract liabilities Concept (Monetary) As Of Credit ffh:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable1
1215 Cash transferred Concept (Monetary) As Of Credit ifrs-full:CashTransferred
1216 Net earned premium Concept (Monetary) For Period Credit ifrs-full:NetEarnedPremium
1217 Consideration received Concept (Monetary) For Period Credit ifrs-full:ConsiderationPaidReceived
1218 Insurance contract liabilities, net Concept (Monetary) As Of Credit ffh:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayableNet
1219 Loss reserve development Concept (Monetary) For Period Debit ffh:LiabilityForClaimsAndClaimsAdjustmentExpenseFavorableUnfavorableDevelopmentLossOnReserve
1220 Profit commission payable Concept (Monetary) As Of Credit ffh:CommissionPayable
1221 2408404 - Disclosure - Insurance Contract Liabilities - Provision For Unearned Premiums (Details) Network

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*

 http://www.fairfax.ca/role/InsuranceContractLiabilitiesProvisionForUnearnedPremiumsDetails
1222 Implied Table Table

*

*

 implied:Table
1223 Insurance Contracts [Abstract] Abstract ffh:InsuranceContractsAbstract
1224 Change In Unearned Premiums [Roll Forward] Abstract ffh:ChangeInUnearnedPremiumsRollForward
1225 Provision for unearned premiums – January 1 Concept (Monetary) As Of Credit ifrs-full:UnearnedPremiums
1226 Gross premiums written Concept (Monetary) For Period Credit ifrs-full:RevenueFromInsuranceContractsIssuedWithoutReductionForReinsuranceHeld
1227 Less: gross premiums earned Concept (Monetary) For Period Credit ffh:DirectPremiumsEarned1
1228 Acquisitions of subsidiaries (note 23) Concept (Monetary) For Period Credit ffh:IncreaseDecreaseInProvisionForUnearnedPremiumAcquisitionOfSubsidiaries
1229 Divestiture of subsidiary (note 23) Concept (Monetary) For Period Credit ffh:IncreaseDecreaseInProvisionForUnearnedPremiumDivestitureOfSubsidiary
1230 Foreign exchange effect and other Concept (Monetary) For Period Credit ffh:IncreaseDecreaseInProvisionForUnearnedPremiumThroughEffectOfChangesInForeignExchangeRates
1231 Provision for unearned premiums - December 31 Concept (Monetary) As Of Credit ifrs-full:UnearnedPremiums
1232 2408405 - Disclosure - Insurance Contract Liabilities - Provision For Loss And Loss Adjustment Expenses (Details) Network

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*

 http://www.fairfax.ca/role/InsuranceContractLiabilitiesProvisionForLossAndLossAdjustmentExpensesDetails
1233 Implied Table Table

*

*

 implied:Table
1234 Insurance Contracts [Abstract] Abstract ffh:InsuranceContractsAbstract
1235 Provision For Loss On Insurance Contracts [Roll Forward] Abstract ffh:LiabilityForUnpaidClaimsAndClaimsAdjustmentExpense1RollForward
1236 Provision for losses and loss adjustment expenses – January 1 Concept (Monetary) As Of Credit ffh:LiabilityForClaimsAndClaimsAdjustmentExpense1
1237 Decrease in estimated losses and expenses for claims occurring in the prior years Concept (Monetary) For Period Debit ffh:SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense1
1238 Losses and expenses for claims occurring in the current year Concept (Monetary) For Period Debit ffh:SupplementalInformationForPropertyCasualtyInsuranceUnderwritersCurrentYearClaimsAndClaimsAdjustmentExpense1
1239 Paid on claims occurring during: Abstract ffh:LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaid1Abstract
1240 the current year Concept (Monetary) For Period Credit ffh:LiabilityforUnpaidClaimsandClaimsAdjustmentExpenseClaimsPaidCurrentYear2
1241 the prior years Concept (Monetary) For Period Credit ffh:LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidPriorYears2
1242 Acquisitions of subsidiaries (note 23) Concept (Monetary) For Period Credit ffh:LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseBusinessAcquisitions1
1243 Divestiture of subsidiary (note 23) Concept (Monetary) For Period Credit ffh:LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseDivestitureOfSubsidiary
1244 Foreign exchange effect and other Concept (Monetary) For Period Credit ffh:LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseForeignCurrencyTranslationGainLoss1
1245 Provision for losses and loss adjustment expenses – December 31 Concept (Monetary) As Of Credit ffh:LiabilityForClaimsAndClaimsAdjustmentExpense1
1246 2408406 - Disclosure - Insurance Contract Liabilities - Development Of Insurance Losses (Details) Network

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 http://www.fairfax.ca/role/InsuranceContractLiabilitiesDevelopmentOfInsuranceLossesDetails
1247 Disclosure of types of insurance contracts [table] Table

*

*

 ifrs-full:DisclosureOfTypesOfInsuranceContractsTable
1248 Insurance Contracts, Accident Year1 [Axis] Axis ffh:InsuranceContractsAccidentYear1Axis
1249 Insurance Contracts, Accident Year1 [Domain] Member ffh:InsuranceContractsAccidentYear1Domain
1250 One year later Member ffh:InsuranceContractsAccidentYearOneYearLaterMember
1251 Two years later Member ffh:InsuranceContractsAccidentYearTwoYearsLaterMember
1252 Three years later Member ffh:InsuranceContractsAccidentYearThreeYearsLaterMember
1253 Four years later Member ffh:InsuranceContractsAccidentYearFourYearsLaterMember
1254 Five years later Member ffh:InsuranceContractsAccidentYearFiveYearsLaterMember
1255 Six years later Member ffh:InsuranceContractsAccidentYearSixYearsLaterMember
1256 Seven years later Member ffh:InsuranceContractsAccidentYearSevenYearsLaterMember
1257 Eight years later Member ffh:InsuranceContractsAccidentYearEightYearsLaterMember
1258 Nine years later Member ffh:InsuranceContractsAccidentYearNineYearsLaterMember
1259 Disclosure of types of insurance contracts [line items] LineItems ifrs-full:DisclosureOfTypesOfInsuranceContractsLineItems
1260 Provision for losses and loss adjustment expenses Concept (Monetary) As Of Credit ffh:LiabilityForClaimsAndClaimsAdjustmentExpense1
1261 Less: CTR Life Concept (Monetary) As Of Debit ffh:LiabilityForClaimsAndClaimsAdjustmentExpenseAttributableToLifeRelatedReserveBalances
1262 Provision for losses and loss adjustment expenses, net of CTR Life Concept (Monetary) As Of Credit ffh:LiabilityForClaimsAndClaimsAdjustmentExpenseNetOfLifeRelatedReserveBalances
1263 Cumulative payments Concept (Monetary) As Of Debit ffh:ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpenseNet1
1264 Reserves re-estimated Concept (Monetary) As Of Credit ffh:ShortdurationInsuranceContractsIncurredClaimsAndAllocatedClaimAdjustmentExpenseNet1
1265 Effect of foreign currency translation Concept (Monetary) As Of Credit ffh:ShortdurationInsuranceContractsLiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseAccumulatedForeignExchange1
1266 Loss reserve development Concept (Monetary) For Period Debit ffh:LiabilityForClaimsAndClaimsAdjustmentExpenseFavorableUnfavorableDevelopmentLossOnReserve
1267 Favourable (unfavourable) development Concept (Monetary) As Of Credit ffh:ShortdurationInsuranceContractsLiabilityForUnpaidClaimsAndClaimAdjustmentExpenseFavourableUnfavourableTotalLossDevelopment
1268 2408407 - Disclosure - Insurance Contract Liabilities - Provision For Loss And Loss Adjustment Expenses - Asbestos (Details) Network

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 http://www.fairfax.ca/role/InsuranceContractLiabilitiesProvisionForLossAndLossAdjustmentExpensesAsbestosDetails
1269 Implied Table Table

*

*

 implied:Table
1270 Insurance Contracts [Abstract] Abstract ffh:InsuranceContractsAbstract
1271 Liability for Asbestos and Environmental Claims [Roll Forward] Abstract ffh:LiabilityForAsbestosAndEnvironmentalClaims1Abstract
1272 Gross Abstract ffh:LiabilityForAsbestosAndEnvironmentalClaims1RollForward
1273 Provision for asbestos claims and loss adjustment expenses - January 1 Concept (Monetary) As Of Credit ffh:LiabilityForAsbestosAndEnvironmentalClaimsGross1
1274 Losses and loss adjustment expenses incurred Concept (Monetary) For Period Debit ffh:LiabilityForAsbestosAndEnvironmentalClaimsGrossIncurredLoss2
1275 Losses and loss adjustment expenses paid Concept (Monetary) For Period Credit ffh:LiabilityForAsbestosAndEnvironmentalClaimsGrossPaymentforClaims1
1276 Provisions for asbestos claims assumed during the year, at December 31 Concept (Monetary) For Period Credit ffh:LiabilityForAsbestosAndEnvironmentalClaimsGrossPeriodIncreaseDecrease1
1277 Provision for asbestos claims and loss adjustment expenses - December 31 Concept (Monetary) As Of Credit ffh:LiabilityForAsbestosAndEnvironmentalClaimsGross1
1278 Net Abstract ffh:LiabilityForAsbestosAndEnvironmentalClaimsNet1RollForward
1279 Provision for asbestos claims and loss adjustment expenses - January 1 Concept (Monetary) As Of Credit ffh:LiabilityForAsbestosAndEnvironmentalClaimsNet1
1280 Losses and loss adjustment expenses incurred Concept (Monetary) For Period Debit ffh:LiabilityForAsbestosAndEnvironmentalClaimsNetIncurredLoss2
1281 Losses and loss adjustment expenses paid Concept (Monetary) For Period Credit ffh:LiabilityForAsbestosAndEnvironmentalClaimsNetPaymentForClaims1
1282 Provisions for asbestos claims assumed during the year, at December 31 Concept (Monetary) For Period Credit ffh:LiabilityForAsbestosAndEnvironmentalClaimsNetPeriodIncreaseDecrease1
1283 Provision for asbestos claims and loss adjustment expenses - December 31 Concept (Monetary) As Of Credit ffh:LiabilityForAsbestosAndEnvironmentalClaimsNet1
1284 2408408 - Disclosure - Insurance Contract Liabilities - Fair Value/Change In Interest Rates (Details) Network

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 http://www.fairfax.ca/role/InsuranceContractLiabilitiesFairValueChangeInInterestRatesDetails
1285 Disclosure of types of insurance contracts [table] Table

*

*

 ifrs-full:DisclosureOfTypesOfInsuranceContractsTable
1286 Types of risks [axis] Axis ifrs-full:TypesOfRisksAxis
1287 Risks [member] Member ifrs-full:TypesOfRisksMember
1288 100 basis point increase Member ffh:InterestRateRisk100BasisPointIncreaseMember
1289 100 basis point decrease Member ffh:InterestRateRisk100BasisPointDecreaseMember
1290 Amounts arising from insurance contracts [axis] Axis ifrs-full:AmountsArisingFromInsuranceContractsAxis
1291 Net amount arising from insurance contracts [member] Member ifrs-full:NetAmountArisingFromInsuranceContractsMember
1292 Insurance contracts Member ifrs-full:GrossAmountArisingFromInsuranceContractsMember
1293 Ceded reinsurance contracts Member ifrs-full:ReinsurersShareOfAmountArisingFromInsuranceContractsMember
1294 Disclosure of types of insurance contracts [line items] LineItems ifrs-full:DisclosureOfTypesOfInsuranceContractsLineItems
1295 Fair value Concept (Monetary) As Of Credit ffh:LiabilitiesArisingFromReinsuranceContractsFairValue
1296 Carrying value Concept (Monetary) As Of Credit ifrs-full:LiabilitiesArisingFromInsuranceContracts
1297 2409402 - Disclosure - Insurance Contract Receivables - Insurance Contract Receivables (Details) Network

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 http://www.fairfax.ca/role/InsuranceContractReceivablesInsuranceContractReceivablesDetails
1298 Implied Table Table

*

*

 implied:Table
1299 Insurance Contracts [Abstract] Abstract ffh:InsuranceContractsAbstract
1300 Insurance premiums receivable Concept (Monetary) As Of Debit ffh:AssetsUnderInsuranceContractsAndReinsuranceContractsIssuedInsurancePremiumsReceivable
1301 Reinsurance premiums receivable Concept (Monetary) As Of Debit ffh:AssetsUnderInsuranceContractsAndReinsuranceContractsIssuedReinsurancePremiumsReceivable
1302 Funds withheld receivable Concept (Monetary) As Of Debit ffh:AssetsUnderInsuranceContractsAndReinsuranceContractsIssuedFundsWithheldReceivable
1303 Other Concept (Monetary) As Of Debit ffh:AssetsUnderInsuranceContractsAndReinsuranceContractsIssuedOtherReceivables
1304 Provision for uncollectible balances Concept (Monetary) As Of Credit ffh:AssetsUnderInsuranceContractsAndReinsuranceContractsIssuedProvisionForUncollectibleBalances
1305 Insurance contract receivables Concept (Monetary) As Of Debit ifrs-full:AssetsUnderInsuranceContractsAndReinsuranceContractsIssued
1306 2409403 - Disclosure - Insurance Contract Receivables - Changes in Insurance Contract Receivables (Details) Network

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 http://www.fairfax.ca/role/InsuranceContractReceivablesChangesInInsuranceContractReceivablesDetails
1307 Implied Table Table

*

*

 implied:Table
1308 Insurance Contracts [Abstract] Abstract ffh:InsuranceContractsAbstract
1309 Insurance premiums receivable Abstract ffh:InsuranceContractsPremiumsReceivableRollForward
1310 Insurance premiums receivable, beginning balance Concept (Monetary) As Of Debit ffh:AssetsUnderInsuranceContractsAndReinsuranceContractsIssuedInsurancePremiumsReceivable
1311 Gross premiums written Concept (Monetary) For Period Debit ffh:AdditionsOtherThanThroughBusinessCombinationsInsurancePremiumsReceivable
1312 Premiums collected Concept (Monetary) For Period Credit ffh:IncreaseDecreaseThroughAdjustmentsArisingFromCollectionsInsurancePremiumsReceivable
1313 Recovery (impairments) Concept (Monetary) For Period Debit ffh:IncreaseDecreaseThroughImpairmentInsurancePremiumsReceivable
1314 Amounts due to brokers and agents Concept (Monetary) For Period Credit ffh:IncreaseDecreaseThroughFeesDueToBrokersAndAgentsInsurancePremiumsReceivable
1315 Acquisitions of subsidiaries (note 23) Concept (Monetary) For Period Debit ffh:AcquisitionsThroughBusinessCombinationsInsurancePremiumsReceivable
1316 Divestiture of subsidiary (note 23) Concept (Monetary) For Period Credit ffh:DivestitureOfSubsidiaryInsurancePremiumsReceivable
1317 Foreign exchange effect and other Concept (Monetary) For Period Debit ffh:IncreaseDecreaseThroughNetExchangeDifferencesAndOtherChangesInsurancePremiumsReceivable
1318 Insurance premiums receivable, ending balance Concept (Monetary) As Of Debit ffh:AssetsUnderInsuranceContractsAndReinsuranceContractsIssuedInsurancePremiumsReceivable
1319 Reinsurance premiums receivable Abstract ffh:InsuranceContractsReinsurancePremiumsReceivableRollForward
1320 Reinsurance premiums receivable, beginning balance Concept (Monetary) As Of Debit ffh:AssetsUnderInsuranceContractsAndReinsuranceContractsIssuedReinsurancePremiumsReceivable
1321 Gross premiums written Concept (Monetary) For Period Debit ffh:AdditionsOtherThanThroughBusinessCombinationsReinsurancePremiumsReceivable
1322 Premiums collected Concept (Monetary) For Period Credit ffh:IncreaseDecreaseThroughAdjustmentsArisingFromCollectionsReinsurancePremiumsReceivable
1323 Recovery (impairments) Concept (Monetary) For Period Debit ffh:IncreaseDecreaseThroughImpairmentReinsurancePremiumsReceivable
1324 Amounts due to brokers and agents Concept (Monetary) For Period Credit ffh:IncreaseDecreaseThroughFeesDueToBrokersAndAgentsReinsurancePremiumsReceivable
1325 Acquisitions of subsidiaries (note 23) Concept (Monetary) For Period Debit ffh:AcquisitionsThroughBusinessCombinationsReinsurancePremiumsReceivable
1326 Divestiture of subsidiary (note 23) Concept (Monetary) For Period Credit ffh:DivestitureOfSubsidiaryReinsurancePremiumsReceivable
1327 Foreign exchange effect and other Concept (Monetary) For Period Debit ffh:IncreaseDecreaseThroughNetExchangeDifferencesAndOtherChangesReinsurancePremiumsReceivable
1328 Reinsurance premiums receivable, ending balance Concept (Monetary) As Of Debit ffh:AssetsUnderInsuranceContractsAndReinsuranceContractsIssuedReinsurancePremiumsReceivable
1329 2410402 - Disclosure - Reinsurance - Reinsurers' Share of Insurance Contract Liabilities (Details) Network

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 http://www.fairfax.ca/role/ReinsuranceReinsurersShareOfInsuranceContractLiabilitiesDetails
1330 Disclosure of net, gross and reinsurer's share for amounts arising from insurance contracts [table] Table

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 ifrs-full:DisclosureOfNetGrossAndReinsurersShareForAmountsArisingFromInsuranceContractsTable
1331 Reinsurance Recoverables [Axis] Axis ffh:ReinsuranceRecoverablesAxis
1332 Reinsurance Recoverables [Domain] Member ffh:ReinsuranceRecoverablesDomain
1333 Gross recoverable from reinsurers Member ffh:ReinsuranceRecoverableGrossMember
1334 Provision for uncollectible reinsurance Member ffh:ProvisionForUncollectibleReinsuranceMember
1335 Amounts arising from insurance contracts [axis] Axis ifrs-full:AmountsArisingFromInsuranceContractsAxis
1336 Net amount arising from insurance contracts [member] Member ifrs-full:NetAmountArisingFromInsuranceContractsMember
1337 Ceded reinsurance contracts Member ifrs-full:ReinsurersShareOfAmountArisingFromInsuranceContractsMember
1338 Disclosure of net, gross and reinsurer's share for amounts arising from insurance contracts [line items] LineItems ifrs-full:DisclosureOfNetGrossAndReinsurersShareForAmountsArisingFromInsuranceContractsLineItems
1339 Provision for losses and loss adjustment expenses Concept (Monetary) As Of Credit ffh:ProvisionForReinsuranceRecoverables
1340 Reinsurers’ share of paid losses Concept (Monetary) As Of Debit ffh:ReinsuranceRecoverablesOnPaidLossesGross1
1341 Provision for unearned premiums Concept (Monetary) As Of Debit ffh:UnearnedPremiumsCeded
1342 Assets under reinsurance ceded Concept (Monetary) As Of Debit ifrs-full:AssetsUnderReinsuranceCeded
1343 Recoverable from reinsurers, current Concept (Monetary) As Of Debit ffh:ReinsuranceRecoverablesCurrent
1344 Recoverable from reinsurers, non-current Concept (Monetary) As Of Debit ffh:ReinsuranceRecoverablesNoncurrent
1345 2410403 - Disclosure - Reinsurance - Reinsurers' Share of Paid Losses, Unpaid Losses, Unearned Premiums and the Provision (Details) Network

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 http://www.fairfax.ca/role/ReinsuranceReinsurersShareOfPaidLossesUnpaidLossesUnearnedPremiumsAndProvisionDetails
1346 Disclosure of net, gross and reinsurer's share for amounts arising from insurance contracts [table] Table

*

*

 ifrs-full:DisclosureOfNetGrossAndReinsurersShareForAmountsArisingFromInsuranceContractsTable
1347 Business combinations [axis] Axis ifrs-full:BusinessCombinationsAxis
1348 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
1349 RiverStone (UK) Member ffh:RiverStoneInsuranceUKLimitedMember
1350 Amounts arising from insurance contracts [axis] Axis ifrs-full:AmountsArisingFromInsuranceContractsAxis
1351 Net amount arising from insurance contracts [member] Member ifrs-full:NetAmountArisingFromInsuranceContractsMember
1352 Ceded reinsurance contracts Member ifrs-full:ReinsurersShareOfAmountArisingFromInsuranceContractsMember
1353 Reinsurance Recoverables [Axis] Axis ffh:ReinsuranceRecoverablesAxis
1354 Reinsurance Recoverables [Domain] Member ffh:ReinsuranceRecoverablesDomain
1355 Paid losses Member ffh:PaidLossesMember
1356 Unpaid losses Member ffh:UnpaidLossesMember
1357 Unearned premiums Member ffh:CededUnearnedPremiumsMember
1358 Provision for uncollectible reinsurance Member ffh:ProvisionForUncollectibleReinsuranceMember
1359 Disclosure of net, gross and reinsurer's share for amounts arising from insurance contracts [line items] LineItems ifrs-full:DisclosureOfNetGrossAndReinsurersShareForAmountsArisingFromInsuranceContractsLineItems
1360 Changes In Reinsurance Recoverables [Roll Forward] Abstract ffh:ChangesInReinsuranceRecoverablesRollForward
1361 Reinsurance recoverables, beginning balance Concept (Monetary) As Of Debit ifrs-full:AssetsUnderReinsuranceCeded
1362 Reinsurers’ share of losses paid to insureds Concept (Monetary) For Period Debit ifrs-full:CashPaidLiabilitiesUnderInsuranceContractsAndReinsuranceContractsIssued
1363 Reinsurance recoveries received Concept (Monetary) For Period Debit ffh:IncreaseDecreaseThroughReinsuranceRecoveriesReceivedLiabilitiesUnderInsuranceContractsAndReinsuranceContractsIssued
1364 Reinsurers’ share of unpaid losses and premiums earned Concept (Monetary) For Period Debit ffh:IncreaseDecreaseThroughReinsurersUnpaidLossesAndPremiumsEarnedLiabilitiesUnderInsuranceContractsAndReinsuranceContractsIssued
1365 Premiums ceded to reinsurers Concept (Monetary) For Period Credit ffh:IncreaseDecreaseThroughPremiumsCededToReinsurersLiabilitiesUnderInsuranceContractsAndReinsuranceContractsIssued
1366 Change in provision, recovery or write-off of impaired balances Concept (Monetary) For Period Credit ffh:IncreaseDecreaseThroughChangeInProvisionRecoveryAndWriteOffOfImpairedBalancesLiabilitiesUnderInsuranceContractsAndReinsuranceContractsIssued
1367 Acquisitions of subsidiaries (note 23) and reinsurance transactions Concept (Monetary) For Period Debit ffh:IncreaseDecreaseOfReinsurersShareOfPaidLossesUnpaidLossesUnearnedPremiumsAndProvisionForUncollectibleBalanceThroughAcquisitionsOfSubsidiaries
1368 Divestiture of subsidiary (note 23) Concept (Monetary) For Period Credit ffh:IncreaseDecreaseThroughDivestitureOfSubsidiaryLiabilitiesUnderInsuranceContractsAndReinsuranceContractsIssued
1369 Foreign exchange effect and other Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesLiabilitiesUnderInsuranceContractsAndReinsuranceContractsIssued
1370 Reinsurance recoverables, ending balance Concept (Monetary) As Of Debit ifrs-full:AssetsUnderReinsuranceCeded
1371 Commission income on premiums ceded Concept (Monetary) For Period Credit ifrs-full:FeeAndCommissionIncome
1372 2411402 - Disclosure - Deferred Premium Acquisition Costs (Details) Network

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 http://www.fairfax.ca/role/DeferredPremiumAcquisitionCostsDetails
1373 Implied Table Table

*

*

 implied:Table
1374 Insurance Contracts [Abstract] Abstract ffh:InsuranceContractsAbstract
1375 Reconciliation of changes in deferred acquisition costs arising from insurance contracts [abstract] Abstract ifrs-full:ReconciliationOfChangesInDeferredAcquisitionCostsArisingFromInsuranceContractsAbstract
1376 Deferred premium acquisition costs, beginning balance Concept (Monetary) As Of Debit ifrs-full:DeferredAcquisitionCostsArisingFromInsuranceContracts
1377 Premium acquisition costs deferred Concept (Monetary) For Period Debit ifrs-full:AmountsIncurredDeferredAcquisitionCostsArisingFromInsuranceContracts
1378 Amortization Concept (Monetary) For Period Credit ifrs-full:AmortisationDeferredAcquisitionCostsArisingFromInsuranceContracts
1379 Divestiture of subsidiary (note 23) Concept (Monetary) For Period Credit ffh:DivestitureOfSubsidiaryDeferredAcquisitionCostsArisingFromInsuranceContracts
1380 Foreign exchange effect and other Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesDeferredAcquisitionCostsArisingFromInsuranceContracts
1381 Deferred premium acquisition costs, ending balance Concept (Monetary) As Of Debit ifrs-full:DeferredAcquisitionCostsArisingFromInsuranceContracts
1382 2412402 - Disclosure - Goodwill and Intangible Assets - Schedule of Changes in Goodwill and Intangible Assets (Details) Network

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1383 Disclosure of reconciliation of changes in intangible assets and goodwill [table] Table

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 ifrs-full:DisclosureOfReconciliationOfChangesInIntangibleAssetsAndGoodwillTable
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1386 Goodwill Member ifrs-full:GoodwillMember
1387 Lloyd's participation rights Member ffh:LloydsParticipationRightsMember
1388 Customer and broker relationships Member ifrs-full:CustomerrelatedIntangibleAssetsMember
1389 Brand names Member ifrs-full:BrandNamesMember
1390 Computer software and other Member ifrs-full:ComputerSoftwareMember
1391 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Axis ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
1392 Carrying amount [member] Member ifrs-full:CarryingAmountMember
1393 Gross carrying amount Member ifrs-full:GrossCarryingAmountMember
1394 Accumulated amortization Member ifrs-full:AccumulatedDepreciationAndAmortisationMember
1395 Accumulated impairment Member ifrs-full:AccumulatedImpairmentMember
1396 Disclosure of reconciliation of changes in intangible assets and goodwill [line items] LineItems ifrs-full:DisclosureOfReconciliationOfChangesInIntangibleAssetsAndGoodwillLineItems
1397 Disclosure of reconciliation of changes in intangible assets and goodwill [abstract] Abstract ifrs-full:ReconciliationOfChangesInIntangibleAssetsAndGoodwillAbstract
1398 Intangible assets and goodwill, beginning balance Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsAndGoodwill
1399 Additions Concept (Monetary) For Period Debit ifrs-full:AcquisitionsThroughBusinessCombinationsIntangibleAssetsAndGoodwill
1400 Disposals Concept (Monetary) For Period Credit ifrs-full:DisposalsIntangibleAssetsAndGoodwill
1401 Amortization Concept (Monetary) For Period ifrs-full:AmortisationIntangibleAssetsOtherThanGoodwill
1402 Impairment Concept (Monetary) For Period ifrs-full:ImpairmentLossRecognisedInProfitOrLossIntangibleAssetsAndGoodwill
1403 Foreign exchange effect and other Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsAndGoodwill
1404 Intangible assets and goodwill, ending balance Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsAndGoodwill
1405 2412402 - Disclosure - Other Assets (Details) Network

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*

 http://www.fairfax.ca/role/OtherAssetsDetails
1406 Disclosure of operating segments [table] Table

*

*

 ifrs-full:DisclosureOfOperatingSegmentsTable
1407 Consolidated and separate financial statements [axis] Axis ifrs-full:ConsolidatedAndSeparateFinancialStatementsAxis
1408 Consolidated [member] Member ifrs-full:ConsolidatedMember
1409 Insurance and reinsurance companies Member ffh:InsuranceAndReinsuranceCompaniesMember
1410 Non-insurance companies Member ffh:NonInsuranceCompanyMember
1411 Disclosure of operating segments [line items] LineItems ifrs-full:DisclosureOfOperatingSegmentsLineItems
1412 Premises and equipment Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
1413 Other reporting segment investment property (note 23) Concept (Monetary) As Of Debit ifrs-full:InvestmentProperty
1414 Other reporting segment inventories Concept (Monetary) As Of Debit ifrs-full:InventoriesTotal
1415 Other reporting segment sales receivables Concept (Monetary) As Of Debit ifrs-full:OtherReceivables
1416 Prepaid expenses Concept (Monetary) As Of Debit ifrs-full:Prepayments
1417 Accrued interest and dividends Concept (Monetary) As Of Debit ffh:AccruedInterestAndDividends
1418 Income taxes refundable Concept (Monetary) As Of Debit ifrs-full:CurrentTaxAssets
1419 Deferred compensation plans Concept (Monetary) As Of Debit ffh:DeferredCompensationPlanAssets1
1420 Pension surplus (note 21) Concept (Monetary) As Of Debit ifrs-full:RecognisedAssetsDefinedBenefitPlan
1421 Receivables for securities sold but not yet settled Concept (Monetary) As Of Debit ffh:ReceivablesForSecuritiesSoldButNotYetSettled
1422 Other Concept (Monetary) As Of Debit ffh:OtherAssetsMiscellaneous1
1423 Current Concept (Monetary) As Of Debit ifrs-full:OtherCurrentAssets
1424 Non-current Concept (Monetary) As Of Debit ifrs-full:OtherNoncurrentAssets
1425 Other assets Concept (Monetary) As Of Debit ifrs-full:OtherAssets
1426 2412403 - Disclosure - Goodwill and Intangible Assets - Allocation of Goodwill and Intangible Assets (Details) Network

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*

 http://www.fairfax.ca/role/GoodwillAndIntangibleAssetsAllocationOfGoodwillAndIntangibleAssetsDetails
1427 Disclosure of information for cash-generating units [table] Table

*

*

 ifrs-full:DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesTable
1428 Cash-generating units [axis] Axis ifrs-full:IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesAxis
1429 Entity's total for cash-generating units [member] Member ifrs-full:EntitysTotalForCashgeneratingUnitsMember
1430 Allied World Member ffh:AlliedWorldMember
1431 Recipe Member ffh:RecipeUnlimitedCorporationMember
1432 Brit Member ffh:BritLimitedMember
1433 Zenith National Member ffh:ZenithNationalMember
1434 Crum & Forster Member ffh:CrumForsterHoldingsCorp.Member
1435 Thomas Cook India Member ffh:ThomasCookIndiaLimitedMember
1436 Northbridge Member ffh:NorthbridgeFinancialCorporationMember
1437 Odyssey Group Member ffh:OdysseyGroupHoldingsInc.Member
1438 AMAG Insurance Member ffh:AMAGMember
1439 Quess Member ffh:QuessCorpLimitedMember
1440 All other Member ffh:OtherEntitiesGoodwillIntangiblesMember
1441 Disclosure of information for cash-generating units [line items] LineItems ifrs-full:DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesLineItems
1442 Goodwill Concept (Monetary) As Of Debit ifrs-full:Goodwill
1443 Intangible assets Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsOtherThanGoodwill
1444 Total Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsAndGoodwill
1445 2412404 - Disclosure - Goodwill and Intangible Assets - Additional Information (Details) Network

*

*

 http://www.fairfax.ca/role/GoodwillAndIntangibleAssetsAdditionalInformationDetails
1446 Disclosure of information for cash-generating units [table] Table

*

*

 ifrs-full:DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesTable
1447 Cash-generating units [axis] Axis ifrs-full:IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesAxis
1448 Entity's total for cash-generating units [member] Member ifrs-full:EntitysTotalForCashgeneratingUnitsMember
1449 Insurance business Member ffh:InsuranceBusinessMember
1450 Non-insurance business Member ffh:NonInsuranceBusinessMember
1451 Range [axis] Axis ifrs-full:RangeAxis
1452 Ranges [member] Member ifrs-full:RangesMember
1453 Bottom of range Member ifrs-full:BottomOfRangeMember
1454 Top of range Member ifrs-full:TopOfRangeMember
1455 Disclosure of information for cash-generating units [line items] LineItems ifrs-full:DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesLineItems
1456 Discount rate applied to cash flow projections Concept (Percent) As Of ifrs-full:DescriptionOfDiscountRatesAppliedToCashFlowProjections
1457 Investment return rate Concept (Percent) As Of ffh:InvestmentReturnRateUsedToExtrapolateCashFlowsProjections
1458 Growth rate used to extrapolate cash flow projections Concept (Percent) As Of ifrs-full:DescriptionOfGrowthRateUsedToExtrapolateCashFlowProjections
1459 2414402 - Disclosure - Accounts Payable and Accrued Liabilities (Details) Network

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 http://www.fairfax.ca/role/AccountsPayableAndAccruedLiabilitiesDetails
1460 Accounts Payable And Accrued Liabilities [Table] Table

*

*

 ffh:AccountsPayableAndAccruedLiabilitiesTable
1461 Consolidated and separate financial statements [axis] Axis ifrs-full:ConsolidatedAndSeparateFinancialStatementsAxis
1462 Consolidated [member] Member ifrs-full:ConsolidatedMember
1463 Insurance and reinsurance companies Member ffh:InsuranceAndReinsuranceCompaniesMember
1464 Non-insurance companies Member ffh:NonInsuranceCompanyMember
1465 Accounts Payable And Accrued Liabilities [Line Items] LineItems ffh:AccountsPayableAndAccruedLiabilitiesLineItems
1466 Other reporting segment payables related to cost of sales Concept (Monetary) As Of Credit ifrs-full:OtherPayables
1467 Payable to reinsurers Concept (Monetary) As Of Credit ffh:ReinsurancePayable1
1468 Salaries and employee benefit liabilities Concept (Monetary) As Of Credit ifrs-full:ProvisionsForEmployeeBenefits
1469 Deferred gift card, hospitality and other revenue Concept (Monetary) As Of Credit ifrs-full:DeferredIncome
1470 Amounts withheld and accrued taxes Concept (Monetary) As Of Credit ffh:TaxesPayableCurrentAndNoncurrent1
1471 Ceded deferred premium acquisition costs Concept (Monetary) As Of Credit ffh:AccruedCededDeferredAcquisitionCostsArisingFromInsuranceContracts
1472 Pension and post retirement liabilities (note 21) Concept (Monetary) As Of Credit ifrs-full:RecognisedLiabilitiesDefinedBenefitPlan
1473 Accrued rent, storage and facilities costs Concept (Monetary) As Of Credit ifrs-full:RentDeferredIncome
1474 Amounts payable to agents and brokers Concept (Monetary) As Of Credit ffh:PayableToAgentsAndBrokers
1475 Accrued commissions Concept (Monetary) As Of Credit ffh:AccruedSalesCommissionCurrentAndNoncurrent1
1476 Accrued premium taxes Concept (Monetary) As Of Credit ffh:AccrualForInsuranceRelatedPremiumTax
1477 Accrued legal and professional fees Concept (Monetary) As Of Credit ffh:AccruedProfessionalFeesCurrentAndNoncurrent1
1478 Accrued interest expense Concept (Monetary) As Of Credit ifrs-full:InterestPayable
1479 Amounts payable for securities purchased but not yet settled Concept (Monetary) As Of Credit ffh:PayablesForSecuritiesPurchasedButNotYetSettled
1480 Administrative and other Concept (Monetary) As Of Credit ffh:OtherAccruedLiabilitiesCurrentAndNoncurrent1
1481 Accounts payable and accrued liabilities Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherPayables
1482 Current Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherCurrentPayables
1483 Non-current Concept (Monetary) As Of Credit ifrs-full:NoncurrentPayables
1484 2415402 - Disclosure - Borrowings - Schedule of Borrowings (Details) Network

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 http://www.fairfax.ca/role/BorrowingsScheduleOfBorrowingsDetails
1485 Disclosure of detailed information about borrowings [table] Table

*

*

 ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable
1486 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Axis ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
1487 Carrying amount [member] Member ifrs-full:CarryingAmountMember
1488 Gross carrying amount Member ifrs-full:GrossCarryingAmountMember
1489 Consolidated and separate financial statements [axis] Axis ifrs-full:ConsolidatedAndSeparateFinancialStatementsAxis
1490 Consolidated [member] Member ifrs-full:ConsolidatedMember
1491 Holding company cash and investments Member ffh:HoldingCompanyMember
1492 Insurance and reinsurance companies Member ffh:InsuranceAndReinsuranceCompaniesMember
1493 Non-insurance companies Member ffh:NonInsuranceCompanyMember
1494 Borrowings by name [axis] Axis ifrs-full:BorrowingsByNameAxis
1495 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
1496 7.375% due April 15, 2018 Member ffh:A7.375UnsecuredSeniorNotesDueApril152018Member
1497 7.25% due June 22, 2020 (Cdn$275.0) Member ffh:A7.25UnsecuredSeniorNotesDueJune222020Member
1498 5.80% due May 15, 2021 Member ffh:A5.80UnsecuredSeniorNotesDueMay152021Member
1499 6.40% due May 25, 2021 (Cdn$400.0) Member ffh:A6.40UnsecuredSeniorNotesDueMay252021Member
1500 5.84% due October 14, 2022 (Cdn$450.0) Member ffh:A5.84UnsecuredSeniorNotesDueOctober142022Member
1501 4.50% due March 22, 2023 (Cdn$400.0) Member ffh:A4.50UnsecuredSeniorNotesDueMarch222023Member
1502 4.875% due August 13, 2024 Member ffh:A4.875UnsecuredSeniorNotesDueAugust132024Member
1503 4.95% due March 3, 2025 (Cdn$350.0) Member ffh:A4.95UnsecuredSeniorNotesDueMarch32025Member
1504 8.30% due April 15, 2026 Member ffh:A8.30UnsecuredSeniorNotesDueApril152026Member
1505 4.70% due December 16, 2026 (Cdn$450.0) Member ffh:A4.70UnsecuredSeniorNotesDueDecember162026Member
1506 4.25% due December 6, 2027 (Cdn$650.0) Member ffh:A4.25DueDecember62027Member
1507 2.75% due March 29, 2028 (€750.0) Member ffh:A2.75UnsecuredSeniorNotesDueMarch292028Member
1508 4.85% due April 17, 2028 Member ffh:A4.85UnsecuredSeniorNotesDueApril172028Member
1509 7.75% due July 15, 2037 Member ffh:A7.75UnsecuredSeniorNotesDueJuly152037Member
1510 Allied World senior notes, 5.50% due November 1, 2020 Member ffh:AlliedWorldSeniorNotes5.50DueNovember12020Member
1511 Allied World senior notes, 4.35% due October 29, 2025 Member ffh:AlliedWorldSeniorNotes4.35DueOctober292025Member
1512 Allied World revolving credit facility and other borrowings Member ffh:AlliedWorldRevolvingCreditFacilityAndOtherBorrowingsMember
1513 OdysseyRe floating rate unsecured senior notes due 2021 Member ffh:OdysseyGroupFloatingRateUnsecuredSeniorNotesDue2021Member
1514 Zenith National 8.55% debentures due August 1, 2028 Member ffh:ZenithNational8.55DebenturesDueAugust12028Member
1515 Brit 6.625% subordinated notes due December 9, 2030 (£135.0) Member ffh:Brit6.625SubordinatedNotesDueDecember92030Member
1516 Brit floating rate revolving credit facility Member ffh:BritFloatingRateRevolvingCreditFacilityMember
1517 Advent floating rate unsecured senior notes due 2026 Member ffh:AdventFloatingRateUnsecuredSeniorNotesDue2026Member
1518 Advent floating rate subordinated notes due June 3, 2035 Member ffh:AdventFloatingRateSubordinatedNotesDueJune32035Member
1519 First Mercury floating rate trust preferred securities due 2036 and 2037 Member ffh:FirstMercuryFloatingRateTrustPreferredSecuritiesDue2036and2037Member
1520 Fairfax India floating rate term loans Member ffh:FairfaxIndiaFloatingRateTermLoanMember
1521 Fairfax India subsidiary borrowings Member ffh:FairfaxIndiaSubsidiaryBorrowingsMember
1522 Fairfax Africa floating rate term loan and credit facility Member ffh:FairfaxAfricaFloatingRateTermLoansAndRevolvingCreditFacilityMember
1523 Recipe term loans and credit facilities Member ffh:RecipeTermLoansAndCreditFacilitiesMember
1524 Grivalia Properties term loans and revolving facility Member ffh:GrivaliaPropertiesTermLoansAndRevolvingFacilityMember
1525 Loans and revolving credit facilities primarily at floating rates Member ffh:TermLoansAndRevolvingCreditFacilitiesPrimarilyAtFloatingRatesMember
1526 Disclosure of detailed information about borrowings [line items] LineItems ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
1527 Principal Concept (Monetary) As Of ifrs-full:NotionalAmount
1528 Carrying amount Concept (Monetary) As Of Credit ifrs-full:Borrowings
1529 Fair value Concept (Monetary) As Of Credit ffh:BorrowingsAtFairValue
1530 Interest rate Concept (Percent) As Of ifrs-full:BorrowingsInterestRate
1531 2415403 - Disclosure - Borrowings - Additional Information (Details) Network

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 http://www.fairfax.ca/role/BorrowingsAdditionalInformationDetails
1532 Disclosure of detailed information about borrowings [table] Table

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*

 ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable
1533 Legal Entity [Axis] Axis dei:LegalEntityAxis
1534 Entity [Domain] Member dei:EntityDomain
1535 Toys R Us Canada Member ffh:ToysRUsCanadaLtd.Member
1536 Subsequent Event Type [Axis] Axis ffh:SubsequentEventType1Axis
1537 Subsequent Event Type [Domain] Member ffh:SubsequentEventType1Domain
1538 Subsequent event Member ffh:SubsequentEvent1Member
1539 Borrowings by name [axis] Axis ifrs-full:BorrowingsByNameAxis
1540 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
1541 4.875% due August 13, 2024 Member ffh:A4.875UnsecuredSeniorNotesDueAugust132024Member
1542 5.84% due October 14, 2022 Member ffh:A5.84UnsecuredSeniorNotesDueOctober142022Member
1543 Fairfax Africa Floating Rate Term Loan Due January 31, 2018 Member ffh:FairfaxAfricaFloatingRateTermLoanDueJanuary312018Member
1544 Fairfax Africa Floating Rate Term Loan Due August 2018 Member ffh:FairfaxAfricaFloatingRateTermLoanDueAugust2018Member
1545 Fairfax India Floating Rate Term Loan Due July 2018 Member ffh:FairfaxIndiaFloatingRateTermLoanDueJuly2018Member
1546 Fairfax India Floating Rate Term Loan Due June 2019 Member ffh:FairfaxIndiaFloatingRateTermLoanDueJune2019Member
1547 5.80% due May 15, 2021 Member ffh:A5.80UnsecuredSeniorNotesDueMay152021Member
1548 Debtor In Possession Financing Member ffh:DebtorInPossessionFinancingMember
1549 Loans and revolving credit facilities primarily at floating rates Member ffh:TermLoansAndRevolvingCreditFacilitiesPrimarilyAtFloatingRatesMember
1550 Allied World senior notes, 5.50% due November 1, 2020 Member ffh:AlliedWorldSeniorNotes5.50DueNovember12020Member
1551 7.25% Due June 22, 2020 Member ffh:A7.25UnsecuredSeniorNotesDueJune222020Member
1552 4.85% due April 17, 2028 Member ffh:A4.85UnsecuredSeniorNotesDueApril172028Member
1553 7.375% due April 15, 2018 Member ffh:A7.375UnsecuredSeniorNotesDueApril152018Member
1554 2.75% due March 29, 2028 Member ffh:A2.75UnsecuredSeniorNotesDueMarch292028Member
1555 4.412% Unsecured Senior Notes Due February 7, 2024 Member ffh:A4.412UnsecuredSeniorNotesDueFebruary72024Member
1556 The credit facility Member ffh:RevolvingCreditFacilityTheCreditFacilityExpiringMay2019Member
1557 Consolidated and separate financial statements [axis] Axis ifrs-full:ConsolidatedAndSeparateFinancialStatementsAxis
1558 Consolidated [member] Member ifrs-full:ConsolidatedMember
1559 Holding company cash and investments Member ffh:HoldingCompanyMember
1560 Insurance and reinsurance companies Member ffh:InsuranceAndReinsuranceCompaniesMember
1561 Non-insurance companies Member ffh:NonInsuranceCompanyMember
1562 Disclosure of detailed information about borrowings [line items] LineItems ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
1563 Repurchased amount Concept (Monetary) As Of Debit ffh:DebtInstrumentRepurchasedFaceAmount1
1564 Interest rate Concept (Percent) As Of ifrs-full:BorrowingsInterestRate
1565 Principal Concept (Monetary) As Of ifrs-full:NotionalAmount
1566 Debt term Concept (xbrli:durationItemType) For Period ffh:DebtInstrumentTerm1
1567 Extinguishment of debt amount Concept (Monetary) For Period Debit ffh:ExtinguishmentOfDebtAmount1
1568 Payments for redemption of debt Concept (Monetary) For Period Credit ffh:RepaymentsForRepurchaseOfDebtInstrument
1569 Loss on repurchase of borrowings Concept (Monetary) For Period Credit ffh:GainLossOnRepurchaseOfDebtInstrument1
1570 Issuance price Concept (Monetary) As Of Credit ffh:BorrowingIssuancePrice
1571 Net proceeds from borrowings Concept (Monetary) For Period Debit ifrs-full:ProceedsFromBorrowingsClassifiedAsFinancingActivities
1572 Effective rate Concept (Percent) As Of ffh:DebtInstrumentInterestRateEffectivePercentage1
1573 Borrowing costs capitalised Concept (Monetary) For Period ifrs-full:BorrowingCostsCapitalised
1574 Repayment of debt Concept (Monetary) For Period Credit ifrs-full:RepaymentsOfBorrowingsClassifiedAsFinancingActivities
1575 Revolving credit facility available Concept (Monetary) As Of Credit ifrs-full:UndrawnBorrowingFacilities
1576 Maximum ratio of consolidated debt to consolidated capitalization Concept (Pure) For Period ffh:DebtInstrumentCovenantComplianceRatioOfDebtToCapitalization
1577 Required minimum of shareholders' equity balance Concept (Monetary) As Of Credit ffh:DebtInstrumentCovenantComplianceRequiredShareholdersEquityBalance
1578 Short term draw Concept (Monetary) As Of Credit ifrs-full:ShorttermBorrowings
1579 Debt to consolidated capitalization ratio, actual Concept (Pure) As Of ffh:DebtInstrumentCovenantComplianceDebtToCapitalizationPercentActual
1580 Shareholders’ equity attributable to shareholders of Fairfax Concept (Monetary) As Of Credit ifrs-full:EquityAttributableToOwnersOfParent
1581 2415404 - Disclosure - Borrowings - Carrying Amount Rollforward (Details) Network

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 http://www.fairfax.ca/role/BorrowingsCarryingAmountRollforwardDetails
1582 Disclosure of detailed information about borrowings [table] Table

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 ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable
1583 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Axis ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
1584 Carrying amount [member] Member ifrs-full:CarryingAmountMember
1585 Gross carrying amount Member ifrs-full:GrossCarryingAmountMember
1586 Consolidated and separate financial statements [axis] Axis ifrs-full:ConsolidatedAndSeparateFinancialStatementsAxis
1587 Consolidated [member] Member ifrs-full:ConsolidatedMember
1588 Holding company cash and investments Member ffh:HoldingCompanyMember
1589 Insurance and reinsurance companies Member ffh:InsuranceAndReinsuranceCompaniesMember
1590 Non-insurance companies Member ffh:NonInsuranceCompanyMember
1591 Disclosure of detailed information about borrowings [line items] LineItems ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
1592 Carrying Value Of Borrowings [Roll Forward] Abstract ffh:CarryingValueOfBorrowingsRollForward
1593 Balance – January 1 Concept (Monetary) As Of Credit ifrs-full:Borrowings
1594 Cash inflows from issuances Concept (Monetary) For Period Debit ifrs-full:ProceedsFromCurrentBorrowings
1595 Cash outflows from repayments Concept (Monetary) For Period Credit ifrs-full:RepaymentsOfCurrentBorrowings
1596 Net cash inflows (outflows) from credit facilities and short term loans Concept (Monetary) For Period Debit ffh:ProceedsFromRepaymentsOfLinesOfCredit1
1597 Acquisitions (note 23) Concept (Monetary) For Period Credit ffh:NoncashOrPartNoncashAcquisitionDebtAssumed2
1598 Deconsolidation of subsidiary (note 23) Concept (Monetary) For Period Debit ffh:NoncashOrPartNoncashDivestitureAmountOfConsiderationReceived2
1599 Loss on redemption Concept (Monetary) For Period Credit ffh:GainLossOnRedemptionOfDebtInstrument
1600 Foreign exchange effect and other Concept (Monetary) For Period Credit ffh:ForeignExchangeGainLossDebt
1601 Balance – December 31 Concept (Monetary) As Of Credit ifrs-full:Borrowings
1602 2415405 - Disclosure - Borrowings - Schedule of Borrowings Principal Payments (Details) Network

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 http://www.fairfax.ca/role/BorrowingsScheduleOfBorrowingsPrincipalPaymentsDetails
1603 Disclosure of detailed information about borrowings [table] Table

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 ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable
1604 Consolidated and separate financial statements [axis] Axis ifrs-full:ConsolidatedAndSeparateFinancialStatementsAxis
1605 Consolidated [member] Member ifrs-full:ConsolidatedMember
1606 Holding company Member ffh:HoldingCompanyMember
1607 Insurance and reinsurance companies Member ffh:InsuranceAndReinsuranceCompaniesMember
1608 Non-insurance companies Member ffh:NonInsuranceCompaniesMember
1609 Disclosure of detailed information about borrowings [line items] LineItems ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
1610 2019 Concept (Monetary) As Of Credit ffh:BorrowingsRepaymentsOfPrincipalInNextTwelveMonths
1611 2021 Concept (Monetary) As Of Credit ffh:BorrowingsMaturitiesRepaymentsOfPrincipalInYearTwo
1612 2022 Concept (Monetary) As Of Credit ffh:BorrowingsMaturitiesRepaymentsOfPrincipalInYearThree
1613 2023 Concept (Monetary) As Of Credit ffh:BorrowingsMaturitiesRepaymentsOfPrincipalInYearFour
1614 2024 Concept (Monetary) As Of Credit ffh:BorrowingsMaturitiesRepaymentsOfPrincipalInYearFive
1615 Thereafter Concept (Monetary) As Of Credit ffh:BorrowingsMaturitiesRepaymentsOfPrincipalAfterYearFive
1616 Principal Concept (Monetary) As Of Credit ffh:BorrowingsMaturitiesRepaymentsOfPrincipal
1617 2416402 - Disclosure - Total Equity (Details) Network

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 http://www.fairfax.ca/role/TotalEquityDetails
1618 Disclosure of classes of share capital [table] Table

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*

 ifrs-full:DisclosureOfClassesOfShareCapitalTable
1619 Business combinations [axis] Axis ifrs-full:BusinessCombinationsAxis
1620 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
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1622 Subsequent Event Type [Axis] Axis ffh:SubsequentEventType1Axis
1623 Subsequent Event Type [Domain] Member ffh:SubsequentEventType1Domain
1624 Subsequent event Member ffh:SubsequentEvent1Member
1625 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
1626 Equity [member] Member ifrs-full:EquityMember
1627 Retained earnings Member ifrs-full:RetainedEarningsMember
1628 Treasury shares (at cost) Member ifrs-full:TreasurySharesMember
1629 Classes of share capital [axis] Axis ifrs-full:ClassesOfShareCapitalAxis
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1631 Multiple voting shares Member ffh:OrdinarySharesMultipleVotingSharesMember
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1633 Disclosure of classes of share capital [line items] LineItems ifrs-full:DisclosureOfClassesOfShareCapitalLineItems
1634 Voting percentage of multiple voting shares Concept (Percent) For Period ffh:ProportionOfVotingRightsHeldByAuthorizedShareCapital
1635 Number of shares issued (in shares) Concept (Shares) As Of ifrs-full:NumberOfSharesIssued
1636 Number of shares reserved for share-based payments Concept (Shares) As Of ffh:CommonStockCapitalSharesReservedForFutureIssuance1
1637 Purchases for cancellation Concept (Shares) For Period ffh:ReductionOfIssuedCapitalPurchasesAndCancellationsShares
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1640 Purchases for cancellation Concept (Monetary) For Period Credit ffh:AdjustmentToProfitLossIncreaseDecreaseThroughExcessOfConsiderationOverBookValueOfPreferredSharesPurchasedForCancellation
1641 Treasury shares acquired Concept (Shares) For Period ffh:PurchaseOfTreasurySharesShares
1642 Purchases and amortization Concept (Monetary) For Period Debit ffh:ReductionOfIssuedCapitalPurchasesAndAmortization
1643 Issuances during the year Concept (Shares) For Period ifrs-full:IncreaseDecreaseInNumberOfOrdinarySharesIssued
1644 Number of shares issued in combination Concept (Decimal) As Of ifrs-full:NumberOfInstrumentsOrInterestsIssuedOrIssuable
1645 Equity interests of acquirer Concept (Monetary) As Of Credit ifrs-full:EquityInterestsOfAcquirer
1646 Excess of book value over consideration of common shares purchased for cancellation Concept (Monetary) For Period Credit ffh:AdjustmentToProfitLossIncreaseDecreaseThroughExcessBookValueOverConsiderationOfPreferredSharesPurchasedForCancellation
1647 2416403 - Disclosure - Total Equity - Shares Outstanding Rollforward (Details) Network

*

*

 http://www.fairfax.ca/role/TotalEquitySharesOutstandingRollforwardDetails
1648 Disclosure of classes of share capital [table] Table

*

*

 ifrs-full:DisclosureOfClassesOfShareCapitalTable
1649 Classes of share capital [axis] Axis ifrs-full:ClassesOfShareCapitalAxis
1650 Share capital [member] Member ifrs-full:ClassesOfShareCapitalMember
1651 Multiple voting shares Member ffh:OrdinarySharesMultipleVotingSharesMember
1652 Subordinate voting shares Member ffh:OrdinarySharesSubordinateVotingSharesMember
1653 Common shares Member ifrs-full:OrdinarySharesMember
1654 Disclosure of classes of share capital [line items] LineItems ifrs-full:DisclosureOfClassesOfShareCapitalLineItems
1655 Reconciliation of number of shares outstanding [abstract] Abstract ifrs-full:ReconciliationOfNumberOfSharesOutstandingAbstract
1656 Beginning balance, shares outstanding Concept (Shares) As Of ifrs-full:NumberOfSharesOutstanding
1657 Interest in subordinate voting shares held through ownership interest in shareholder, beginning balance Concept (Shares) As Of ifrs-full:SharesInEntityHeldByEntityOrByItsSubsidiariesOrAssociates
1658 Issuances during the year Concept (Shares) For Period ifrs-full:IncreaseDecreaseInNumberOfOrdinarySharesIssued
1659 Purchases for cancellation Concept (Shares) For Period ffh:ReductionOfIssuedCapitalPurchasesAndCancellationsShares
1660 Treasury shares acquired Concept (Shares) For Period ffh:PurchaseOfTreasurySharesShares
1661 Treasury shares reissued Concept (Shares) For Period ffh:SaleOrIssueOfTreasurySharesShares
1662 Interest in subordinate voting shares held through ownership interest in shareholder, ending balance Concept (Shares) As Of ifrs-full:SharesInEntityHeldByEntityOrByItsSubsidiariesOrAssociates
1663 Ending balance, shares outstanding Concept (Shares) As Of ifrs-full:NumberOfSharesOutstanding
1664 2416404 - Disclosure - Total Equity - Dividends Paid (Details) Network

*

*

 http://www.fairfax.ca/role/TotalEquityDividendsPaidDetails
1665 Dividends Declared [Table] Table

*

*

 ffh:DividendsDeclaredTable
1666 Subsequent Event Type [Axis] Axis ffh:SubsequentEventType1Axis
1667 Subsequent Event Type [Domain] Member ffh:SubsequentEventType1Domain
1668 Subsequent event Member ffh:SubsequentEvent1Member
1669 Dividends Declared [Line Items] LineItems ffh:DividendsDeclaredLineItems
1670 Dividend per share (in dollars per share) Concept (Share) For Period ifrs-full:DividendsPaidOrdinarySharesPerShare
1671 Total cash payment Concept (Monetary) For Period Debit ifrs-full:DividendsPaidOrdinaryShares
1672 2416405 - Disclosure - Total Equity - Preferred Shares Outstanding (Details) Network

*

*

 http://www.fairfax.ca/role/TotalEquityPreferredSharesOutstandingDetails
1673 Disclosure of classes of share capital [table] Table

*

*

 ifrs-full:DisclosureOfClassesOfShareCapitalTable
1674 Classes of share capital [axis] Axis ifrs-full:ClassesOfShareCapitalAxis
1675 Share capital [member] Member ifrs-full:ClassesOfShareCapitalMember
1676 Series C Member ffh:PreferenceSharesSeriesCMember
1677 Series D Member ffh:PreferenceSharesSeriesDMember
1678 Series E Member ffh:PreferenceSharesSeriesEMember
1679 Series F Member ffh:PreferenceSharesSeriesFMember
1680 Series G Member ffh:PreferenceSharesSeriesGMember
1681 Series H Member ffh:PreferenceSharesSeriesHMember
1682 Series I Member ffh:PreferenceSharesSeriesIMember
1683 Series J Member ffh:PreferenceSharesSeriesJMember
1684 Series K Member ffh:PreferenceSharesSeriesKMember
1685 Series M Member ffh:PreferenceSharesSeriesMMember
1686 Preferred shares Member ifrs-full:PreferenceSharesMember
1687 Disclosure of classes of share capital [line items] LineItems ifrs-full:DisclosureOfClassesOfShareCapitalLineItems
1688 Reconciliation of number of shares outstanding [abstract] Abstract ifrs-full:ReconciliationOfNumberOfSharesOutstandingAbstract
1689 Beginning balance, shares outstanding Concept (Shares) As Of ifrs-full:NumberOfSharesOutstanding
1690 Activity Concept (Shares) For Period ifrs-full:IncreaseDecreaseInNumberOfSharesOutstanding
1691 Ending balance, shares outstanding Concept (Shares) As Of ifrs-full:NumberOfSharesOutstanding
1692 2416406 - Disclosure - Total Equity - Carrying Value Of Preferred Shares Outstanding (Details) Network

*

*

 http://www.fairfax.ca/role/TotalEquityCarryingValueOfPreferredSharesOutstandingDetails
1693 Disclosure of classes of share capital [table] Table

*

*

 ifrs-full:DisclosureOfClassesOfShareCapitalTable
1694 Classes of share capital [axis] Axis ifrs-full:ClassesOfShareCapitalAxis
1695 Share capital [member] Member ifrs-full:ClassesOfShareCapitalMember
1696 Series C Member ffh:PreferenceSharesSeriesCMember
1697 Series D Member ffh:PreferenceSharesSeriesDMember
1698 Series E Member ffh:PreferenceSharesSeriesEMember
1699 Series F Member ffh:PreferenceSharesSeriesFMember
1700 Series G Member ffh:PreferenceSharesSeriesGMember
1701 Series H Member ffh:PreferenceSharesSeriesHMember
1702 Series I Member ffh:PreferenceSharesSeriesIMember
1703 Series J Member ffh:PreferenceSharesSeriesJMember
1704 Series K Member ffh:PreferenceSharesSeriesKMember
1705 Series M Member ffh:PreferenceSharesSeriesMMember
1706 Preferred shares Member ifrs-full:PreferenceSharesMember
1707 Disclosure of classes of share capital [line items] LineItems ifrs-full:DisclosureOfClassesOfShareCapitalLineItems
1708 Beginning balance Concept (Monetary) As Of Credit ifrs-full:IssuedCapital
1709 Issuances Concept (Monetary) For Period Credit ifrs-full:IssueOfEquity
1710 Ending balance Concept (Monetary) As Of Credit ifrs-full:IssuedCapital
1711 2416407 - Disclosure - Total Equity - Preferred Shares (Details) Network

*

*

 http://www.fairfax.ca/role/TotalEquityPreferredSharesDetails
1712 Disclosure of classes of share capital [table] Table

*

*

 ifrs-full:DisclosureOfClassesOfShareCapitalTable
1713 Variable Rate1 [Axis] Axis ffh:VariableRate1Axis
1714 Variable Rate1 [Domain] Member ffh:VariableRate1Domain
1715 Government of Canada Treasury Bill Member ffh:GovernmentOfCanadaTreasuryBillMember
1716 Classes of share capital [axis] Axis ifrs-full:ClassesOfShareCapitalAxis
1717 Share capital [member] Member ifrs-full:ClassesOfShareCapitalMember
1718 Series C Member ffh:PreferenceSharesSeriesCMember
1719 Series D Member ffh:PreferenceSharesSeriesDMember
1720 Series E Member ffh:PreferenceSharesSeriesEMember
1721 Series F Member ffh:PreferenceSharesSeriesFMember
1722 Series G Member ffh:PreferenceSharesSeriesGMember
1723 Series H Member ffh:PreferenceSharesSeriesHMember
1724 Series I Member ffh:PreferenceSharesSeriesIMember
1725 Series J Member ffh:PreferenceSharesSeriesJMember
1726 Series K Member ffh:PreferenceSharesSeriesKMember
1727 Series M Member ffh:PreferenceSharesSeriesMMember
1728 Series L Member ffh:PreferenceSharesSeriesLMember
1729 Series N Member ffh:PreferenceSharesSeriesNMember
1730 Disclosure of classes of share capital [line items] LineItems ifrs-full:DisclosureOfClassesOfShareCapitalLineItems
1731 Number of shares outstanding Concept (Shares) As Of ifrs-full:NumberOfSharesOutstanding
1732 Stated capital Concept (Monetary) As Of Credit ifrs-full:IssuedCapital
1733 Liquidation preference per share (in dollars per share) Concept (Share) As Of ffh:PreferredStockLiquidationPreference1
1734 Fixed dividend rate per annum Concept (Percent) For Period ffh:PreferredStockDividendRatePercentage1
1735 Floating dividend rate per annum Concept (Percent) For Period ffh:PreferredStockFloatingDividendRatePercentage
1736 Variable rate basis spread Concept (Percent) For Period ffh:PreferredStockDividendRateBasisSpreadOnVariableRatePercentage
1737 2416408 - Disclosure - Total Equity - Accumulated Other Comprehensive Income (Loss) (Details) Network

*

*

 http://www.fairfax.ca/role/TotalEquityAccumulatedOtherComprehensiveIncomeLossDetails
1738 Disclosure of analysis of other comprehensive income by item [table] Table

*

*

 ifrs-full:DisclosureOfAnalysisOfOtherComprehensiveIncomeByItemTable
1739 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
1740 Equity [member] Member ifrs-full:EquityMember
1741 Equity attributable to shareholders of Fairfax Member ifrs-full:EquityAttributableToOwnersOfParentMember
1742 Disclosure of analysis of other comprehensive income by item [line items] LineItems ifrs-full:DisclosureOfAnalysisOfOtherComprehensiveIncomeByItemLineItems
1743 Pre-tax amount Abstract ffh:AccumulatedOtherComprehensiveIncomeBeforeTaxAbstract
1744 Currency translation account Concept (Monetary) As Of Credit ffh:AccumulatedOtherComprehensiveIncomeLossExchangeDifferencesOnTranslationBeforeTax
1745 Share of accumulated other comprehensive loss of associates, excluding net gains (losses) on defined benefit plans Concept (Monetary) As Of Credit ffh:ShareOfAccumulatedOtherComprehensiveIncomeLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillBeReclassifiedToProfitOrLossBeforeTax
1746 Items that may be subsequently reclassified to net earnings Concept (Monetary) As Of Credit ffh:AccumulatedOtherComprehensiveIncomeLossThatWillBeReclassifiedToProfitOrLossBeforeTax
1747 Share of net gains (losses) on defined benefit plans of associates Concept (Monetary) As Of Credit ffh:ShareOfAccumulatedOtherComprehensiveIncomeLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillNotBeReclassifiedToProfitOrLossBeforeTax
1748 Net losses on defined benefit plans Concept (Monetary) As Of Credit ffh:AccumulatedOtherComprehensiveIncomeLossGainsLossesOnRemeasurementsOfDefinedBenefitPlansBeforeTax
1749 Other Concept (Monetary) As Of Credit ffh:AccumulatedOtherComprehensiveIncomeLossOtherBeforeTax
1750 Items that will not be subsequently reclassified to net earnings Concept (Monetary) As Of Credit ffh:AccumulatedOtherComprehensiveIncomeLossThatWillNotBeReclassifiedToProfitOrLossBeforeTax
1751 Accumulated other comprehensive loss attributable to shareholders of Fairfax Concept (Monetary) As Of Credit ffh:AccumulatedOtherComprehensiveIncomeLossBeforeTax
1752 Income tax recovery Abstract ffh:AccumulatedOtherComprehensiveIncomeTaxAbstract
1753 Currency translation account Concept (Monetary) As Of Debit ffh:AccumulatedOtherComprehensiveIncomeLossExchangeDifferencesOnTranslationTax
1754 Share of accumulated other comprehensive loss of associates, excluding net gains (losses) on defined benefit plans Concept (Monetary) As Of Debit ffh:ShareOfAccumulatedOtherComprehensiveIncomeLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillBeReclassifiedToProfitOrLossTax
1755 Items that may be subsequently reclassified to net earnings Concept (Monetary) As Of Debit ffh:AccumulatedOtherComprehensiveIncomeLossThatWillBeReclassifiedToProfitOrLossTax
1756 Share of net gains (losses) on defined benefit plans of associates Concept (Monetary) As Of Debit ffh:ShareOfAccumulatedOtherComprehensiveIncomeLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillNotBeReclassifiedToProfitOrLossTax
1757 Net losses on defined benefit plans Concept (Monetary) As Of Debit ffh:AccumulatedOtherComprehensiveIncomeLossGainsLossesOnRemeasurementsOfDefinedBenefitPlansTax
1758 Other Concept (Monetary) As Of Debit ffh:AccumulatedOtherComprehensiveIncomeLossOtherTax
1759 Items that will not be subsequently reclassified to net earnings Concept (Monetary) As Of Debit ffh:AccumulatedOtherComprehensiveIncomeLossThatWillNotBeReclassifiedToProfitOrLossTax
1760 Accumulated other comprehensive loss attributable to shareholders of Fairfax Concept (Monetary) As Of Debit ffh:AccumulatedOtherComprehensiveIncomeLossTax
1761 After-tax amount Abstract ffh:AccumulatedOtherComprehensiveIncomeNetOfTaxAbstract
1762 Currency translation account Concept (Monetary) As Of Credit ffh:AccumulatedOtherComprehensiveIncomeLossExchangeDifferencesOnTranslationNetOfTax
1763 Share of accumulated other comprehensive loss of associates, excluding net gains (losses) on defined benefit plans Concept (Monetary) As Of Credit ffh:ShareOfAccumulatedOtherComprehensiveIncomeLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillBeReclassifiedToProfitOrLossNetOfTax
1764 Items that may be subsequently reclassified to net earnings Concept (Monetary) As Of Credit ffh:AccumulatedOtherComprehensiveIncomeLossThatWillBeReclassifiedToProfitOrLossNetOfTax
1765 Share of net losses on defined benefit plans of associates Concept (Monetary) As Of Credit ffh:ShareOfAccumulatedOtherComprehensiveIncomeLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillNotBeReclassifiedToProfitOrLossNetOfTax
1766 Net losses on defined benefit plans Concept (Monetary) As Of Credit ffh:AccumulatedOtherComprehensiveIncomeLossGainsLossesOnRemeasurementsOfDefinedBenefitPlansNetOfTax
1767 Other Concept (Monetary) As Of Credit ffh:AccumulatedOtherComprehensiveIncomeLossOtherNetOfTax
1768 Items that will not be subsequently reclassified to net earnings Concept (Monetary) As Of Credit ffh:AccumulatedOtherComprehensiveIncomeLossThatWillNotBeReclassifiedToProfitOrLossNetOfTax
1769 Accumulated other comprehensive loss attributable to shareholders of Fairfax Concept (Monetary) As Of Credit ifrs-full:AccumulatedOtherComprehensiveIncome
1770 2416409 - Disclosure - Total Equity - Non-Controlling Interests (Details) Network

*

*

 http://www.fairfax.ca/role/TotalEquityNonControllingInterestsDetails
1771 Disclosure of subsidiaries [table] Table

*

*

 ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesTable
1772 Classes of assets [axis] Axis ifrs-full:ClassesOfAssetsAxis
1773 Assets [member] Member ifrs-full:ClassesOfAssetsMember
1774 Investments accounted for using equity method Member ifrs-full:InvestmentsAccountedForUsingEquityMethodMember
1775 Associates [axis] Axis ifrs-full:SignificantInvestmentsInAssociatesAxis
1776 Entity's total for associates [member] Member ifrs-full:EntitysTotalForAssociatesMember
1777 Quess Member ffh:QuessCorpLimitedMember
1778 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
1779 Equity [member] Member ifrs-full:EquityMember
1780 Non- controlling interests Member ifrs-full:NoncontrollingInterestsMember
1781 Classes of share capital [axis] Axis ifrs-full:ClassesOfShareCapitalAxis
1782 Share capital [member] Member ifrs-full:ClassesOfShareCapitalMember
1783 Subordinate voting shares Member ffh:OrdinarySharesSubordinateVotingSharesMember
1784 Counterparties [axis] Axis ifrs-full:CounterpartiesAxis
1785 Counterparties [member] Member ifrs-full:CounterpartiesMember
1786 Allied World's Minority Shareholders Member ffh:AlliedWorldsMinorityShareholdersMember
1787 OMERS Member ffh:OMERSMember
1788 Legal Entity [Axis] Axis dei:LegalEntityAxis
1789 Entity [Domain] Member dei:EntityDomain
1790 Brit Member ffh:BritLimitedMember
1791 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
1792 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
1793 Allied World Member ffh:AlliedWorldMember
1794 Fairfax India Member ffh:FairfaxIndiaHoldingsCorporationMember
1795 Recipe Member ffh:RecipeUnlimitedCorporationMember
1796 Grivalia Properties REIC Member ffh:GrivaliaPropertiesREICMember
1797 Thomas Cook India Member ffh:ThomasCookIndiaLimitedMember
1798 Fairfax Africa Member ffh:FairfaxAfricaHoldingsCorporationMember
1799 Brit Member ffh:BritLimitedMember
1800 All other Member ffh:AllOtherSubsidiariesMember
1801 Quess Member ffh:QuessCorpLimitedMember
1802 Disclosure of subsidiaries [line items] LineItems ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesLineItems
1803 Minority voting percentage Concept (Percent) For Period ifrs-full:ProportionOfVotingRightsHeldByNoncontrollingInterests
1804 Carrying value Concept (Monetary) As Of Credit ifrs-full:NoncontrollingInterests
1805 Net earnings attributable to non-controlling interests Concept (Monetary) For Period Credit ifrs-full:ProfitLossAttributableToNoncontrollingInterests
1806 Dividends paid, other shares Concept (Monetary) For Period Debit ifrs-full:DividendsPaidOtherShares
1807 Performance fee Concept (Monetary) For Period Credit ifrs-full:FeeAndCommissionIncome
1808 Number of shares issued (in shares) Concept (Shares) As Of ifrs-full:NumberOfSharesIssued
1809 Proportion of ownership interest in subsidiary Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInSubsidiary
1810 Percentage of non-cash remeasurement gain Concept (Percent) For Period ffh:NonControllingInterestPercentageOfNonCashRemeasurementGain
1811 Share of profit of associates Concept (Monetary) For Period Credit ifrs-full:ShareOfProfitLossOfAssociatesAccountedForUsingEquityMethod
1812 Deconsolidation of Quess Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughDisposalOfSubsidiary
1813 Number of subordinated voting equity interests acquired Concept (Shares) For Period ffh:NumberOfSubordinatedVotingEquityInterestsAcquired
1814 Consideration paid Concept (Monetary) For Period Credit ifrs-full:ConsiderationPaidReceived
1815 Capital contribution Concept (Monetary) For Period Debit ffh:ProceedsFromContributedCapital1
1816 Percentage of economic interests acquired Concept (Percent) As Of ffh:PercentageOfOwnershipInterestsAcquired
1817 Economic ownership percentage Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestsHeldByNoncontrollingInterests
1818 2416410 - Disclosure - Total Equity - Other Net Changes In Capitalization (Details) Network

*

*

 http://www.fairfax.ca/role/TotalEquityOtherNetChangesInCapitalizationDetails
1819 Statement of changes in equity [table] Table

*

*

 ifrs-full:StatementOfChangesInEquityTable
1820 Consolidated and separate financial statements [axis] Axis ifrs-full:ConsolidatedAndSeparateFinancialStatementsAxis
1821 Consolidated [member] Member ifrs-full:ConsolidatedMember
1822 Fairfax Africa Member ffh:FairfaxAfricaHoldingsCorporationMember
1823 Fairfax India Member ffh:FairfaxIndiaHoldingsCorporationMember
1824 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
1825 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
1826 The Keg Member ffh:KegRestaurantsLtd.Member
1827 Brit Member ffh:BritLimitedMember
1828 Allied World Member ffh:AlliedWorldMember
1829 Quess Member ffh:QuessCorpLimitedMember
1830 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
1831 Equity [member] Member ifrs-full:EquityMember
1832 Retained earnings Member ifrs-full:RetainedEarningsMember
1833 Non- controlling interests Member ifrs-full:NoncontrollingInterestsMember
1834 Statement of changes in equity [line items] LineItems ifrs-full:StatementOfChangesInEquityLineItems
1835 Deconsolidation of Quess Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughDisposalOfSubsidiary
1836 Acquisitions of subsidiaries Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughAcquisitionOfSubsidiary
1837 Dividends paid to co-investors in Allied World and Brit Concept (Monetary) For Period Debit ifrs-full:DividendsRecognisedAsDistributionsToNoncontrollingInterests
1838 Secondary public offering and private placement Concept (Monetary) For Period Debit ffh:IncreaseDecreaseThroughEquityOfferingsEquity
1839 Additional investments in Brit Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughChangeInEquityOfSubsidiaries
1840 Quess transactions Concept (Monetary) For Period Credit ffh:IncreaseDecreaseThroughDisposalOfSubsidiaryTransactionsEquity
1841 Other Concept (Monetary) For Period Credit ffh:IncreaseDecreaseThroughOtherEquity
1842 As presented in other net changes in capitalization in the consolidated statement of changes in equity Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughTransfersAndOtherChangesEquity
1843 2417402 - Disclosure - Earnings per Share (Details) Network

*

*

 http://www.fairfax.ca/role/EarningsPerShareDetails
1844 Implied Table Table

*

*

 implied:Table
1845 Earnings per share [abstract] Abstract ifrs-full:EarningsPerShareAbstract
1846 Net earnings attributable to shareholders of Fairfax Concept (Monetary) For Period Credit ifrs-full:ProfitLossAttributableToOwnersOfParent
1847 Preferred share dividends Concept (Monetary) For Period Debit ifrs-full:AdjustmentToProfitLossForPreferenceShareDividends
1848 Net earnings attributable to common shareholders – basic and diluted Concept (Monetary) For Period Credit ifrs-full:ProfitLossAttributableToOrdinaryEquityHoldersOfParentEntityIncludingDilutiveEffects
1849 Weighted average common shares outstanding – basic (in shares) Concept (Shares) For Period ifrs-full:WeightedAverageShares
1850 Share-based payment awards (in shares) Concept (Shares) For Period ifrs-full:DilutiveEffectOfShareOptionsOnNumberOfOrdinaryShares
1851 Weighted average common shares outstanding – diluted (in shares) Concept (Shares) For Period ifrs-full:AdjustedWeightedAverageShares
1852 Net earnings per common share – basic (in dollars per share) Concept (Share) For Period ifrs-full:BasicEarningsLossPerShare
1853 Net earnings per common share – diluted (in dollars per share) Concept (Share) For Period ifrs-full:DilutedEarningsLossPerShare
1854 2418402 - Disclosure - Income Taxes - Provision for (Recovery of) Income Taxes (Details) Network

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*

 http://www.fairfax.ca/role/IncomeTaxesProvisionForRecoveryOfIncomeTaxesDetails
1855 Implied Table Table

*

*

 implied:Table
1856 Income Taxes [Abstract] Abstract ffh:IncomeTaxesAbstract
1857 Current income tax Abstract ifrs-full:CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriodsAbstract
1858 Current year expense Concept (Monetary) For Period Debit ifrs-full:CurrentTaxExpenseIncome
1859 Adjustments to prior years’ income taxes Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForCurrentTaxOfPriorPeriod
1860 Current income tax Concept (Monetary) For Period Debit ifrs-full:CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriods
1861 Deferred income tax Abstract ffh:DeferredTaxExpenseIncomeAndAdjustmentsForDeferredTaxOfPriorPeriodsAbstract
1862 Origination and reversal of temporary differences Concept (Monetary) For Period Debit ifrs-full:DeferredTaxExpenseIncomeRelatingToOriginationAndReversalOfTemporaryDifferences
1863 Adjustments to prior years' deferred income taxes Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDeferredTaxOfPriorPeriods
1864 Change in tax rate related to U.S. tax reform Concept (Monetary) For Period Debit ifrs-full:DeferredTaxExpenseIncomeRelatingToTaxRateChangesOrImpositionOfNewTaxes
1865 Other Concept (Monetary) For Period Debit ifrs-full:OtherComponentsOfDeferredTaxExpenseIncome
1866 Deferred income tax Concept (Monetary) For Period Debit ffh:DeferredTaxExpenseIncomeAndAdjustmentsForDeferredTaxOfPriorPeriods
1867 Provision for income taxes Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
1868 2418403 - Disclosure - Income Taxes - Earnings Before Income Taxes by Jurisdiction (Details) Network

*

*

 http://www.fairfax.ca/role/IncomeTaxesEarningsBeforeIncomeTaxesByJurisdictionDetails
1869 Disclosure of geographical areas [table] Table

*

*

 ifrs-full:DisclosureOfGeographicalAreasTable
1870 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
1871 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
1872 Canada Member ifrs-full:CountryOfDomicileMember
1873 United States Member country:US
1874 UK Member country:GB
1875 Other Member ffh:ForeignCountriesExcludingUnitedStatesAndUnitedKingdomMember
1876 Disclosure of geographical areas [line items] LineItems ifrs-full:DisclosureOfGeographicalAreasLineItems
1877 Earnings (loss) before income taxes Concept (Monetary) For Period Credit ifrs-full:ProfitLossBeforeTax
1878 Provision (recovery) for income taxes Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
1879 Net earnings Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
1880 2418404 - Disclosure - Income Taxes - Income Tax Reconciliation (Details) Network

*

*

 http://www.fairfax.ca/role/IncomeTaxesIncomeTaxReconciliationDetails
1881 Disclosure of temporary difference, unused tax losses and unused tax credits [table] Table

*

*

 ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable
1882 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
1883 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
1884 Canada Member country:CA
1885 Disclosure of temporary difference, unused tax losses and unused tax credits [line items] LineItems ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems
1886 Canadian statutory income tax rate Concept (Percent) For Period ifrs-full:ApplicableTaxRate
1887 Provision for income taxes at the Canadian statutory income tax rate Concept (Monetary) For Period Debit ifrs-full:TaxExpenseIncomeAtApplicableTaxRate
1888 Non-taxable investment income Concept (Monetary) For Period Credit ifrs-full:TaxEffectOfRevenuesExemptFromTaxation2011
1889 Tax rate differential on income and losses outside Canada Concept (Monetary) For Period Debit ifrs-full:TaxEffectOfForeignTaxRates
1890 Change in unrecorded tax benefit of losses and temporary differences Concept (Monetary) For Period Debit ifrs-full:TaxEffectOfTaxLosses
1891 Foreign exchange effect Concept (Monetary) For Period Debit ffh:TaxEffectOfForeignExchange
1892 Other including permanent differences Concept (Monetary) For Period Debit ifrs-full:OtherTaxEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome
1893 Change in tax rate for deferred income taxes (excluding U.S. tax reform) Concept (Monetary) For Period Debit ffh:TaxEffectFromChangeInTaxRateForDeferredIncomeTaxes
1894 Provision relating to prior years Concept (Monetary) For Period Debit ffh:TaxEffectOfPriorYearIncomeTaxes
1895 Change in tax rate for deferred income taxes related to U.S. tax reform Concept (Monetary) For Period Debit ffh:TaxEffectFromChangeInTaxRateForDeferredIncomeTaxesRelatedToTaxCutsAndJobsAct
1896 Provision for income taxes Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
1897 2418405 - Disclosure - Income Taxes - Additional Information (Details) Network

*

*

 http://www.fairfax.ca/role/IncomeTaxesAdditionalInformationDetails
1898 Disclosure of temporary difference, unused tax losses and unused tax credits [table] Table

*

*

 ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable
1899 Legal Entity [Axis] Axis dei:LegalEntityAxis
1900 Entity [Domain] Member dei:EntityDomain
1901 Allied World Member ffh:AlliedWorldMember
1902 Temporary difference, unused tax losses and unused tax credits [axis] Axis ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis
1903 Temporary difference, unused tax losses and unused tax credits [member] Member ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember
1904 Operating And Capital Losses, And U.S. Foreign Tax Credits Member ffh:OperatingAndCapitalLossesAndU.S.ForeignTaxCreditsMember
1905 Foreign tax credit carryforwards Member ffh:ForeignTaxCreditCarryforwardsMember
1906 Deferred earnings on foreign subsidiary Member ffh:DeferredEarningsOnForeignSubsidiaryMember
1907 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
1908 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
1909 Canada Member country:CA
1910 India Member country:IN
1911 Mauritius Member country:MU
1912 Barbados Member country:BB
1913 United States Member country:US
1914 Europe Member ffh:Europe1Member
1915 Disclosure of temporary difference, unused tax losses and unused tax credits [line items] LineItems ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems
1916 Non-taxable investment income Concept (Monetary) For Period Credit ifrs-full:TaxEffectOfRevenuesExemptFromTaxation2011
1917 Tax effect of deconsolidation of subsidiary Concept (Monetary) For Period Debit ffh:TaxEffectOfDeconsolidationOfSubsidiary
1918 Tax rate differential on income and losses incurred outside Canada Concept (Monetary) For Period Debit ifrs-full:TaxEffectOfForeignTaxRates
1919 Change in unrecorded tax benefit of losses and temporary differences Concept (Monetary) For Period Debit ifrs-full:TaxEffectOfTaxLosses
1920 Deferred tax assets Concept (Monetary) As Of Debit ifrs-full:DeferredTaxAssets
1921 Provision (recovery) relating to prior years Concept (Monetary) For Period Debit ffh:TaxEffectOfPriorYearIncomeTaxes
1922 Other including permanent differences Concept (Monetary) For Period Debit ifrs-full:OtherTaxEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome
1923 Change in tax rate for deferred income taxes related to U.S. tax reform Concept (Monetary) For Period Debit ffh:TaxCutsAndJobsActOf2017IncompleteAccountingChangeInTaxRateDeferredTaxAssetProvisionalIncomeTaxExpense
1924 Unused tax losses Concept (Monetary) As Of ifrs-full:UnusedTaxLossesForWhichNoDeferredTaxAssetRecognised
1925 Unused foreign tax credits Concept (Monetary) As Of ifrs-full:UnusedTaxCreditsForWhichNoDeferredTaxAssetRecognised
1926 Unremitted earnings of subsidiaries Concept (Monetary) As Of ifrs-full:TemporaryDifferencesAssociatedWithInvestmentsInSubsidiariesBranchesAndAssociatesAndInterestsInJointVentures
1927 Change in tax rate related to U.S. tax reform, income statement Concept (Monetary) For Period Debit ffh:TaxCutsAndJobsActOf2017IncompleteAccountingChangeInTaxRateDeferredTaxAssetProvisionalIncomeTaxExpenseIncomeStatement
1928 Change in tax rate related to U.S. tax reform, other comprehensive income Concept (Monetary) For Period Debit ffh:TaxCutsAndJobsActOf2017IncompleteAccountingChangeInTaxRateDeferredTaxAssetProvisionalIncomeTaxExpenseOtherComprehensiveIncome
1929 Tax benefit from transition tax Concept (Monetary) For Period Debit ffh:TaxCutsAndJobsActIncompleteAccountingTransitionTaxForAccumulatedForeignEarningsProvisionalIncomeTaxExpense1
1930 Decrease in net deferred income tax asset Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseInDeferredTaxLiabilityAsset
1931 Undistributed foreign earnings Concept (Monetary) As Of Credit ffh:UndistributedEarningsOfForeignSubsidiaries1
1932 Reduction of deferred tax liability Concept (Monetary) For Period Credit ffh:TaxCutsAndJobsActIncompleteAccountingChangeInTaxRateDeferredTaxLiabilityProvisionalIncomeTaxBenefit
1933 2418406 - Disclosure - Income Taxes - Income Taxes Refundable and Payable (Details) Network

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 http://www.fairfax.ca/role/IncomeTaxesIncomeTaxesRefundableAndPayableDetails
1934 Implied Table Table

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*

 implied:Table
1935 Income Taxes [Abstract] Abstract ffh:IncomeTaxesAbstract
1936 Income taxes refundable Concept (Monetary) As Of Debit ifrs-full:CurrentTaxAssets
1937 Income taxes payable Concept (Monetary) As Of Credit ifrs-full:CurrentTaxLiabilities
1938 Net income taxes refundable Concept (Monetary) As Of Debit ffh:CurrentTaxAssetsLiabilities
1939 2418407 - Disclosure - Income Taxes - Changes in Net Income Taxes (Payable) Refundable (Details) Network

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 http://www.fairfax.ca/role/IncomeTaxesChangesInNetIncomeTaxesPayableRefundableDetails
1940 Implied Table Table

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*

 implied:Table
1941 Income Taxes [Abstract] Abstract ffh:IncomeTaxesAbstract
1942 Income Tax Receivable (Payable) [Roll Forward] Abstract ffh:ReconciliationOfChangesInIncomeTaxReceivablePayableRollForward
1943 Balance - January 1 Concept (Monetary) As Of Debit ffh:CurrentTaxAssetsLiabilities
1944 Amounts recorded in the consolidated statements of earnings Concept (Monetary) For Period Debit ifrs-full:CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriods
1945 Payments made during the year Concept (Monetary) For Period Credit ifrs-full:IncomeTaxesPaidRefund
1946 Acquisitions of subsidiaries (note 23) Concept (Monetary) For Period Debit ffh:IncreaseDecreaseThroughAcquisitionsOfSubsidiariesCurrentTaxAssetsLiabilities
1947 Deconsolidation of subsidiary (note 23) Concept (Monetary) For Period Credit ffh:IncreaseDecreaseThroughDeconsolidationOfSubsidiariesCurrentTaxAssetsLiabilities
1948 Foreign exchange effect and other Concept (Monetary) For Period Debit ffh:IncreaseDecreaseThroughNetExchangeDifferencesCurrentTaxAssetsLiabilities
1949 Balance - December 31 Concept (Monetary) As Of Debit ffh:CurrentTaxAssetsLiabilities
1950 2418408 - Disclosure - Income Taxes - Changes in Deferred Net Income Tax Asset (Details) Network

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*

 http://www.fairfax.ca/role/IncomeTaxesChangesInDeferredNetIncomeTaxAssetDetails
1951 Disclosure of temporary difference, unused tax losses and unused tax credits [table] Table

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*

 ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable
1952 Temporary difference, unused tax losses and unused tax credits [axis] Axis ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis
1953 Temporary difference, unused tax losses and unused tax credits [member] Member ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember
1954 Operating and capital losses Member ifrs-full:UnusedTaxLossesMember
1955 Provision for losses and loss adjustment expenses Member ifrs-full:AllowanceForCreditLossesMember
1956 Provision for unearned premiums Member ffh:ProvisionForUnearnedPremiumsRelatedTemporaryDifferencesMember
1957 Deferred premium acquisition costs Member ffh:DeferredPremiumAcquisitionCostsRelatedTemporaryDifferencesMember
1958 Intangibles Member ffh:IntangibleAssetRelatedTemporaryDifferencesMember
1959 Investments Member ffh:InvestmentsRelatedTemporaryDifferencesMember
1960 Tax credits Member ifrs-full:UnusedTaxCreditsMember
1961 Other Member ifrs-full:OtherTemporaryDifferencesMember
1962 Disclosure of temporary difference, unused tax losses and unused tax credits [line items] LineItems ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems
1963 Reconciliation of changes in deferred tax liability (asset) [abstract] Abstract ifrs-full:ReconciliationOfChangesInDeferredTaxLiabilityAssetAbstract
1964 Deferred tax asset, beginning balance Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilityAsset
1965 Amounts recorded in the consolidated statement of earnings Concept (Monetary) For Period ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss
1966 Amounts recorded in total equity Concept (Monetary) For Period ifrs-full:DeferredTaxRelatingToItemsChargedOrCreditedDirectlyToEquity
1967 Acquisitions of subsidiaries (note 23) Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughBusinessCombinationsDeferredTaxLiabilityAsset
1968 Deconsolidation of subsidiary (note 23) Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughLossOfControlOfSubsidiaryDeferredTaxLiabilityAsset
1969 Foreign exchange effect and other Concept (Monetary) For Period Credit ffh:IncreaseDecreaseThroughNetExchangeDifferencesAndOtherDeferredTaxLiabilityAsset
1970 Deferred tax asset, ending balance Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilityAsset
1971 2419402 - Disclosure - Statutory Requirements (Details) Network

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*

 http://www.fairfax.ca/role/StatutoryRequirementsDetails
1972 Statutory Requirements [Table] Table

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*

 ffh:StatutoryRequirementsTable
1973 Consolidated and separate financial statements [axis] Axis ifrs-full:ConsolidatedAndSeparateFinancialStatementsAxis
1974 Consolidated [member] Member ifrs-full:ConsolidatedMember
1975 Insurance and reinsurance companies Member ffh:InsuranceAndReinsuranceCompaniesMember
1976 Segments [axis] Axis ifrs-full:SegmentsAxis
1977 Segments [member] Member ifrs-full:SegmentsMember
1978 Allied World Member ffh:AlliedWorldMember
1979 Odyssey Group Member ffh:OdysseyGroupHoldingsInc.Member
1980 Northbridge Member ffh:NorthbridgeFinancialCorporationMember
1981 Crum & Forster Member ffh:CrumForsterHoldingsCorp.Member
1982 Zenith National Member ffh:ZenithNationalMember
1983 Brit Member ffh:BritLimitedMember
1984 Statutory Requirements [Line Items] LineItems ffh:StatutoryRequirementsLineItems
1985 Common share dividends Concept (Monetary) For Period Debit ifrs-full:DividendsPaidOrdinaryShares
1986 Dividend capacity available Concept (Monetary) As Of Credit ffh:StatutoryAccountingPracticesStatutoryAmountAvailableForDividendPayments1
1987 2420401 - Disclosure - Contingencies and Commitments (Details) Network

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*

 http://www.fairfax.ca/role/ContingenciesAndCommitmentsDetails
1988 Disclosure of contingent liabilities [table] Table

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*

 ifrs-full:DisclosureOfContingentLiabilitiesTable
1989 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
1990 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
1991 First Capital Insurance Limited Member ffh:FirstCapitalInsuranceLimitedMember
1992 Counterparties [axis] Axis ifrs-full:CounterpartiesAxis
1993 Counterparties [member] Member ifrs-full:CounterpartiesMember
1994 Various Defendants Member ffh:VariousDefendantsMember
1995 Exis Capital Management, Adam Sender and Andrew Heller Member ffh:ExisCapitalManagementAdamSenderAndAndrewHellerMember
1996 Exis Capital Management Member ffh:ExisCapitalManagementMember
1997 Adam Sender Member ffh:AdamSenderMember
1998 Andrew Heller Member ffh:AndrewHellerMember
1999 Classes of financial assets [axis] Axis ifrs-full:ClassesOfFinancialAssetsAxis
2000 Financial assets, class [member] Member ifrs-full:FinancialAssetsMember
2001 Financial assets at fair value Member ifrs-full:FinancialAssetsAtFairValueMember
2002 Classes of assets [axis] Axis ifrs-full:ClassesOfAssetsAxis
2003 Assets [member] Member ifrs-full:ClassesOfAssetsMember
2004 Cash Member ffh:CashAndCashEquivalents1Member
2005 Securities Member ffh:SecuritiesMember
2006 Investments Member ffh:Investments1Member
2007 Classes of contingent liabilities [axis] Axis ifrs-full:ClassesOfContingentLiabilitiesAxis
2008 Contingent liabilities [member] Member ifrs-full:ContingentLiabilitiesMember
2009 Insurance underwriting Member ffh:ContingentLiabilitiesRelatedToInsuranceUnderwritingMember
2010 Legal Entity [Axis] Axis dei:LegalEntityAxis
2011 Entity [Domain] Member dei:EntityDomain
2012 Lloyd's participants Member ffh:LloydsParticipantsMember
2013 Disclosure of contingent liabilities [line items] LineItems ifrs-full:DisclosureOfContingentLiabilitiesLineItems
2014 Damages sought in legal suit Concept (Monetary) For Period Credit ffh:GainContingencyDamagesSoughtValue
2015 Damages awarded Concept (Monetary) For Period Debit ffh:GainContingencyDamagesAwardedValue1
2016 Financial assets pledged as liabilities Concept (Monetary) As Of Debit ifrs-full:FinancialAssetsPledgedAsCollateralForLiabilitiesOrContingentLiabilities
2017 Capital commitments Concept (Monetary) As Of Credit ifrs-full:CapitalCommitments
2018 Percentage of interest sold Concept (Percent) For Period ffh:ProportionOfOwnershipInterestInSubsidiarySold
2019 2420402 - Disclosure - Pensions and Post Retirement Benefits - Funded Status of Defined Benefit Pension and Post Retirement Plans (Details) Network

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 http://www.fairfax.ca/role/PensionsAndPostRetirementBenefitsFundedStatusOfDefinedBenefitPensionAndPostRetirementPlansDetails
2020 Disclosure of defined benefit plans [table] Table

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*

 ifrs-full:DisclosureOfDefinedBenefitPlansTable
2021 Defined benefit plans [axis] Axis ifrs-full:DefinedBenefitPlansAxis
2022 Defined benefit plans [member] Member ifrs-full:DefinedBenefitPlansMember
2023 Defined benefit pension plans Member ffh:DefinedBenefitPlanPensionMember
2024 Post retirement benefit plans Member ffh:BenefitPlanPostretirementMember
2025 Disclosure of defined benefit plans [line items] LineItems ifrs-full:DisclosureOfDefinedBenefitPlansLineItems
2026 Benefit obligation Concept (Monetary) As Of Credit ffh:BenefitObligationAtPresentValue
2027 Fair value of plan assets Concept (Monetary) As Of Debit ifrs-full:PlanAssetsAtFairValue
2028 Funded status of plans - deficit Concept (Monetary) As Of Debit ifrs-full:SurplusDeficitInPlan
2029 Impact of asset ceiling Concept (Monetary) As Of Credit ffh:EffectOfAssetCeiling
2030 Net accrued liability (notes 13 and 14) Concept (Monetary) As Of Credit ffh:LiabilityAssetOfBenefitPlans
2031 Discount rate Concept (Percent) As Of ifrs-full:ActuarialAssumptionOfDiscountRates
2032 Rate of compensation increase Concept (Percent) As Of ifrs-full:ActuarialAssumptionOfExpectedRatesOfSalaryIncreases
2033 Health care cost trend Concept (Percent) As Of ifrs-full:ActuarialAssumptionOfMedicalCostTrendRates
2034 Pension surpluses Concept (Monetary) As Of Debit ifrs-full:RecognisedAssetsDefinedBenefitPlan
2035 Pension deficits Concept (Monetary) As Of Credit ifrs-full:RecognisedLiabilitiesDefinedBenefitPlan
2036 2420403 - Disclosure - Pensions and Post Retirement Benefits - Pension and Post Retirement Expenses Recognized (Details) Network

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 http://www.fairfax.ca/role/PensionsAndPostRetirementBenefitsPensionAndPostRetirementExpensesRecognizedDetails
2037 Disclosure of defined benefit plans [table] Table

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*

 ifrs-full:DisclosureOfDefinedBenefitPlansTable
2038 Defined benefit plans [axis] Axis ifrs-full:DefinedBenefitPlansAxis
2039 Defined benefit plans [member] Member ifrs-full:DefinedBenefitPlansMember
2040 Defined benefit pension plans Member ffh:DefinedBenefitPlanPensionMember
2041 Post retirement benefit plans Member ffh:BenefitPlanPostretirementMember
2042 Disclosure of defined benefit plans [line items] LineItems ifrs-full:DisclosureOfDefinedBenefitPlansLineItems
2043 Defined benefit plan expense Concept (Monetary) For Period Debit ifrs-full:PostemploymentBenefitExpenseDefinedBenefitPlans
2044 Defined contribution pension plan expense Concept (Monetary) For Period Debit ifrs-full:PostemploymentBenefitExpenseDefinedContributionPlans
2045 Employee benefits Concept (Monetary) For Period Debit ifrs-full:EmployeeBenefitsExpense
2046 2420404 - Disclosure - Pensions and Post Retirement Benefits - Pre-tax Actuarial Gains and (Losses) Recognized (Details) Network

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*

 http://www.fairfax.ca/role/PensionsAndPostRetirementBenefitsPreTaxActuarialGainsAndLossesRecognizedDetails
2047 Disclosure of net defined benefit liability (asset) [table] Table

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*

 ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetTable
2048 Defined benefit plans [axis] Axis ifrs-full:DefinedBenefitPlansAxis
2049 Defined benefit plans [member] Member ifrs-full:DefinedBenefitPlansMember
2050 Defined benefit pension plans Member ffh:DefinedBenefitPlanPensionMember
2051 Post retirement benefit plans Member ffh:BenefitPlanPostretirementMember
2052 Disclosure of net defined benefit liability (asset) [line items] LineItems ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetLineItems
2053 Actuarial net gains (losses) on plan assets and change in asset ceiling Concept (Monetary) For Period Debit ifrs-full:GainLossOnChangesInEffectOfLimitingNetDefinedBenefitAssetToAssetCeiling
2054 Actuarial net gains (losses) on benefit obligations Concept (Monetary) For Period Debit ifrs-full:ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsNetDefinedBenefitLiabilityAsset
2055 Gain (loss) on defined benefit pension plans Concept (Monetary) For Period Debit ifrs-full:GainLossOnRemeasurementOfNetDefinedBenefitLiabilityAsset
2056 2420405 - Disclosure - Pensions and Post Retirement Benefits - Additional Information (Details) Network

*

*

 http://www.fairfax.ca/role/PensionsAndPostRetirementBenefitsAdditionalInformationDetails
2057 Implied Table Table

*

*

 implied:Table
2058 Pension And Post Retirement Benefits [Abstract] Abstract ffh:PensionAndPostRetirementBenefitsAbstract
2059 Employer contributions Concept (Monetary) For Period Credit ifrs-full:EmployerContributions
2060 Expected employer contributions Concept (Monetary) For Period Credit ifrs-full:EstimateOfContributionsExpectedToBePaidToPlan
2061 2422402 - Disclosure - Operating Leases (Details) Network

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*

 http://www.fairfax.ca/role/OperatingLeasesDetails
2062 Disclosure of finance lease and operating lease by lessee [table] Table

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*

 ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeTable
2063 Consolidated and separate financial statements [axis] Axis ifrs-full:ConsolidatedAndSeparateFinancialStatementsAxis
2064 Consolidated [member] Member ifrs-full:ConsolidatedMember
2065 Insurance and reinsurance companies Member ffh:InsuranceAndReinsuranceCompaniesMember
2066 Non-insurance companies Member ffh:NonInsuranceCompanyMember
2067 Maturity [axis] Axis ifrs-full:MaturityAxis
2068 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
2069 2019 Member ifrs-full:NotLaterThanOneYearMember
2070 2020 Member ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember
2071 2021 Member ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember
2072 2022 Member ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember
2073 2023 Member ifrs-full:LaterThanFourYearsAndNotLaterThanFiveYearsMember
2074 Thereafter Member ifrs-full:LaterThanFiveYearsMember
2075 Disclosure of finance lease and operating lease by lessee [line items] LineItems ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeLineItems
2076 Minimum operating lease commitments Concept (Monetary) As Of Credit ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease
2077 2423402 - Disclosure - Acquisitions and Divestitures - Subsequent to 2018 (Details) Network

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*

 http://www.fairfax.ca/role/AcquisitionsAndDivestituresSubsequentTo2018Details
2078 Disclosure of detailed information about business combination [table] Table

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*

 ifrs-full:DisclosureOfBusinessCombinationsTable
2079 Classes of share capital [axis] Axis ifrs-full:ClassesOfShareCapitalAxis
2080 Share capital [member] Member ifrs-full:ClassesOfShareCapitalMember
2081 Common shares Member ifrs-full:OrdinarySharesMember
2082 Preferred shares Member ifrs-full:PreferenceSharesMember
2083 Counterparty Name [Axis] Axis srt:CounterpartyNameAxis
2084 Counterparty Name [Domain] Member srt:RepurchaseAgreementCounterpartyNameDomain
2085 Purchaser Entity [Member] Member ffh:PurchaserEntityMember
2086 Shareholder's of Grivalia Properties REIC Member ffh:ShareholdersOfGrivaliaPropertiesREICMember
2087 Statement Scenario [Axis] Axis ffh:StatementScenario1Axis
2088 Statement Scenario [Domain] Member ffh:StatementScenario1Domain
2089 Forecast Member ffh:ScenarioForecast1Member
2090 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
2091 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
2092 AGT Food & Ingredients Inc. Member ffh:AGTFoodAndIngredientsInc.Member
2093 Grivalia Properties REIC Member ffh:GrivaliaPropertiesREICMember
2094 Eurobank Ergasias S.A Member ffh:EurobankErgasiasS.AMember
2095 Subsequent Event Type [Axis] Axis ffh:SubsequentEventType1Axis
2096 Subsequent Event Type [Domain] Member ffh:SubsequentEventType1Domain
2097 Subsequent event Member ffh:SubsequentEvent1Member
2098 Associates [axis] Axis ifrs-full:SignificantInvestmentsInAssociatesAxis
2099 Entity's total for associates [member] Member ifrs-full:EntitysTotalForAssociatesMember
2100 Consolidated Infrastructure Group Member ffh:ConsolidatedInfrastructureGroupMember
2101 Legal Entity [Axis] Axis dei:LegalEntityAxis
2102 Entity [Domain] Member dei:EntityDomain
2103 Fairfax Africa Member ffh:FairfaxAfricaHoldingsCorporationMember
2104 Business combinations [axis] Axis ifrs-full:BusinessCombinationsAxis
2105 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
2106 AGT Food & Ingredients Inc. Member ffh:AGTFoodAndIngredientsInc.Member
2107 Consolidated Infrastructure Group Member ffh:ConsolidatedInfrastructureGroupMember
2108 Disclosure of detailed information about business combination [line items] LineItems ifrs-full:DisclosureOfBusinessCombinationsLineItems
2109 Share price (in dollars per share) Concept (Share) As Of ffh:SaleOfStockPricePerShare2
2110 Notes issued Concept (Monetary) As Of Credit ifrs-full:NotesAndDebenturesIssued
2111 Shares owned (in shares) Concept (Shares) As Of ifrs-full:SharesInEntityHeldByEntityOrByItsSubsidiariesOrAssociates
2112 Investments in subsidiaries Concept (Monetary) As Of Debit ifrs-full:InvestmentsInSubsidiaries
2113 Percentage of interests acquired Concept (Percent) As Of ifrs-full:PercentageOfVotingEquityInterestsAcquired
2114 Ownership percentage Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInAssociate
2115 Consideration paid Concept (Monetary) For Period Credit ifrs-full:ConsiderationPaidReceived
2116 Proportion of ownership interest in subsidiary Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInSubsidiary
2117 Pre-merger dividend (in dollars per share) Concept (Share) As Of ffh:BusinessCombinationsPreMergerDividendPerShare
2118 Right to receive exchange of shares Concept (Shares) As Of ffh:BusinessCombinationsRightToReceiveShares
2119 2423403 - Disclosure - Acquisitions and Divestitures - 2018 Acquisitions (Details) Network

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 http://www.fairfax.ca/role/AcquisitionsAndDivestitures2018AcquisitionsDetails
2120 Disclosure of detailed information about business combination [table] Table

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*

 ifrs-full:DisclosureOfBusinessCombinationsTable
2121 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
2122 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
2123 Fairfax India Member ffh:FairfaxIndiaHoldingsCorporationMember
2124 Subsidiary Sale Of Stock1 [Axis] Axis ffh:SubsidiarySaleOfStock1Axis
2125 Subsidiary Sale Of Stock1 [Domain] Member ffh:SubsidiarySaleOfStock1Domain
2126 Public Offering Member ffh:PublicOfferingMember
2127 Open Market Member ffh:OpenMarketMember
2128 Classes of assets [axis] Axis ifrs-full:ClassesOfAssetsAxis
2129 Assets [member] Member ifrs-full:ClassesOfAssetsMember
2130 Investments accounted for using equity method Member ifrs-full:InvestmentsAccountedForUsingEquityMethodMember
2131 Counterparties [axis] Axis ifrs-full:CounterpartiesAxis
2132 Counterparties [member] Member ifrs-full:CounterpartiesMember
2133 Other shareholders Member ffh:OtherShareholdersMember
2134 Classes of share capital [axis] Axis ifrs-full:ClassesOfShareCapitalAxis
2135 Share capital [member] Member ifrs-full:ClassesOfShareCapitalMember
2136 Subordinate voting shares Member ffh:OrdinarySharesSubordinateVotingSharesMember
2137 Associates [axis] Axis ifrs-full:SignificantInvestmentsInAssociatesAxis
2138 Entity's total for associates [member] Member ifrs-full:EntitysTotalForAssociatesMember
2139 Quess Member ffh:QuessCorpLimitedMember
2140 Toys R Us Canada Member ffh:ToysRUsCanadaLtd.Member
2141 Recipe Member ffh:RecipeUnlimitedCorporationMember
2142 Legal Entity [Axis] Axis dei:LegalEntityAxis
2143 Entity [Domain] Member dei:EntityDomain
2144 Sporting Life Group Limited Member ffh:SportingLifeGroupLimitedMember
2145 Fairfax Africa Member ffh:FairfaxAfricaHoldingsCorporationMember
2146 Brit Member ffh:BritLimitedMember
2147 Other shareholders Member ffh:OtherShareholdersMember
2148 Recipe Member ffh:RecipeUnlimitedCorporationMember
2149 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
2150 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
2151 Sporting Life Inc. (Sporting Life) Member ffh:SportingLifeInc.Member
2152 Golf Town Limited Member ffh:GolfTownLimitedMember
2153 Fairfax Africa Member ffh:FairfaxAfricaHoldingsCorporationMember
2154 Brit Member ffh:BritLimitedMember
2155 The Keg Member ffh:KegRestaurantsLtd.Member
2156 Fairfax India Member ffh:FairfaxIndiaHoldingsCorporationMember
2157 Business combinations [axis] Axis ifrs-full:BusinessCombinationsAxis
2158 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
2159 Toys R Us Canada Member ffh:ToysRUsCanadaLtd.Member
2160 The Keg Member ffh:KegRestaurantsLtd.Member
2161 The Catholic Syrian Bank Ltd. Member ffh:TheCatholicSyrianBankLtd.Member
2162 SBI Seguros Uruguay S.A. (SouthBridge Uruguay) Member ffh:SBISegurosUruguayS.A.Member
2163 Disclosure of detailed information about business combination [line items] LineItems ifrs-full:DisclosureOfBusinessCombinationsLineItems
2164 Number of shares issued (in shares) Concept (Shares) For Period ffh:SaleOfStockNumberOfSharesIssuedInTransaction1
2165 Share price (in dollars per share) Concept (Share) As Of ffh:SaleOfStockPricePerShare2
2166 Proceeds from issuing shares, gross Concept (Monetary) For Period Debit ffh:ProceedsFromIssuingSharesGross
2167 Proceeds from issuing shares Concept (Monetary) For Period Debit ifrs-full:ProceedsFromIssuingShares
2168 Number of subordinated voting equity interests acquired Concept (Shares) For Period ffh:NumberOfSubordinatedVotingEquityInterestsAcquired
2169 Cash transferred Concept (Monetary) As Of Credit ifrs-full:CashTransferred
2170 Capital contribution Concept (Monetary) For Period Debit ffh:ProceedsFromContributedCapital1
2171 Consideration transferred (in dollars per share) Concept (Share) As Of ffh:AcquisitionDateFairValueOfTotalConsiderationTransferredPricePerShare
2172 Percentage of economic interests acquired Concept (Percent) As Of ffh:PercentageOfOwnershipInterestsAcquired
2173 Consideration paid Concept (Monetary) For Period Credit ifrs-full:ConsiderationPaidReceived
2174 Dividends paid, other shares Concept (Monetary) For Period Debit ifrs-full:DividendsPaidOtherShares
2175 Performance fee revenue Concept (Monetary) For Period Credit ifrs-full:RevenueFromRenderingOfServicesRelatedPartyTransactions
2176 Percentage of interest sold Concept (Percent) For Period ffh:ProportionOfOwnershipInterestInSubsidiarySold
2177 Purchase consideration Concept (Monetary) As Of Credit ifrs-full:AcquisitiondateFairValueOfTotalConsiderationTransferred
2178 Fair value of equity method investment Concept (Monetary) As Of Debit ifrs-full:FairValueOfInvestmentsInEquityInstrumentsDesignatedAsMeasuredAtFairValueThroughOtherComprehensiveIncome
2179 Additional investment Concept (Monetary) As Of Debit ifrs-full:InvestmentsInAssociatesAccountedForUsingEquityMethod
2180 Share of profit of associates Concept (Monetary) For Period Credit ifrs-full:ShareOfProfitLossOfAssociatesAccountedForUsingEquityMethod
2181 Number of shares issued (in shares) Concept (Shares) As Of ifrs-full:NumberOfSharesIssued
2182 Proportion of ownership interest in subsidiary Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInSubsidiary
2183 Other net changes in capitalization (notes 16 and 23) Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughTransfersAndOtherChangesEquity
2184 Percentage of interests acquired Concept (Percent) As Of ifrs-full:PercentageOfVotingEquityInterestsAcquired
2185 Contingent consideration Concept (Monetary) As Of Debit ifrs-full:ContingentConsiderationArrangementsAndIndemnificationAssetsRecognisedAsOfAcquisitionDate
2186 Ownership percentage Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInAssociate
2187 Voting interest percentage Concept (Percent) For Period ifrs-full:ProportionOfVotingPowerHeldInAssociate
2188 Acquisitions of subsidiaries Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughAcquisitionOfSubsidiary
2189 2423404 - Disclosure - Acquisitions and Divestitures - Assets Acquired and Liabilities Assumed (Details) Network

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 http://www.fairfax.ca/role/AcquisitionsAndDivestituresAssetsAcquiredAndLiabilitiesAssumedDetails
2190 Disclosure of detailed information about business combination [table] Table

*

*

 ifrs-full:DisclosureOfBusinessCombinationsTable
2191 Classes of intangible assets other than goodwill [axis] Axis ifrs-full:ClassesOfIntangibleAssetsOtherThanGoodwillAxis
2192 Intangible assets other than goodwill [member] Member ifrs-full:IntangibleAssetsOtherThanGoodwillMember
2193 Brand names Member ifrs-full:BrandNamesMember
2194 Media Content and Non-Compete Agreements Member ffh:MediaContentAndNonCompeteAgreementsMember
2195 Customer and broker relationships Member ifrs-full:CustomerrelatedIntangibleAssetsMember
2196 Lloyd's participation rights Member ffh:LloydsParticipationRightsMember
2197 Business combinations [axis] Axis ifrs-full:BusinessCombinationsAxis
2198 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
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2232 2423405 - Disclosure - Acquisitions and Divestitures - 2017 Acquisitions (Details) Network

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2233 Disclosure of detailed information about business combination [table] Table

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*

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2308 Warrants to acquire common shares (in dollars per share) Concept (Share) For Period ffh:WarrantsNumberOfInterestsAcquiredPricePerShare
2309 2423406 - Disclosure - Acquisitions and Divestitures - Additional Information (Details) Network

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2310 Disclosure of detailed information about business combination [table] Table

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*

 ifrs-full:DisclosureOfBusinessCombinationsTable
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2316 Net loss from acquiree Concept (Monetary) For Period Credit ifrs-full:ProfitLossOfCombinedEntity
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2318 Pro forma net earnings Concept (Monetary) For Period Credit ffh:ProfitLossOfAcquireesAsIfCombinationOccurredAtBeginningOfPeriod
2319 2424402 - Disclosure - Financial Risk Management - Underwriting Risk - Gross Premiums Written (Details) Network

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 http://www.fairfax.ca/role/FinancialRiskManagementUnderwritingRiskGrossPremiumsWrittenDetails
2320 Disclosure of nature and extent of risks arising from financial instruments [table] Table

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*

 ifrs-full:DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsTable
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2341 2424403 - Disclosure - Financial Risk Management - Credit Risk - Aggregate Gross Credit Risk Exposure (Details) Network

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 http://www.fairfax.ca/role/FinancialRiskManagementCreditRiskAggregateGrossCreditRiskExposureDetails
2342 Disclosure of credit risk exposure [table] Table

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*

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2361 2424404 - Disclosure - Financial Risk Management - Credit Risk - Narrative (Details) Network

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*

 http://www.fairfax.ca/role/FinancialRiskManagementCreditRiskNarrativeDetails
2362 Disclosure of credit risk exposure [table] Table

*

*

 ifrs-full:DisclosureOfCreditRiskExposureTable
2363 Associates [axis] Axis ifrs-full:SignificantInvestmentsInAssociatesAxis
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2423 2424405 - Disclosure - Financial Risk Management - Credit Risk - Schedule of Issuer Credit Rating (Details) Network

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 http://www.fairfax.ca/role/FinancialRiskManagementCreditRiskScheduleOfIssuerCreditRatingDetails
2424 Disclosure of external credit grades [table] Table

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*

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2446 2424406 - Disclosure - Financial Risk Management - Credit Risk - Related Derivative Contract Counterparties (Details) Network

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 http://www.fairfax.ca/role/FinancialRiskManagementCreditRiskRelatedDerivativeContractCounterpartiesDetails
2447 Implied Table Table

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*

 implied:Table
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2455 2424407 - Disclosure - Financial Risk Management - Credit Risk - Gross Recoverable From Reinsurers Classified by Financial Strength (Details) Network

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 http://www.fairfax.ca/role/FinancialRiskManagementCreditRiskGrossRecoverableFromReinsurersClassifiedByFinancialStrengthDetails
2456 Disclosure of credit risk exposure [table] Table

*

*

 ifrs-full:DisclosureOfCreditRiskExposureTable
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2485 2424408 - Disclosure - Financial Risk Management - Liquidity Risk - Narrative (Details) Network

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 http://www.fairfax.ca/role/FinancialRiskManagementLiquidityRiskNarrativeDetails
2486 Disclosure of nature and extent of risks arising from financial instruments [table] Table

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*

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2507 Insurance and reinsurance companies Member ffh:InsuranceAndReinsuranceCompaniesMember
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2509 Subsidiary cash and short term investments Member ffh:NonHoldingCompanyMember
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2515 Dividend per share (in dollars per share) Concept (Share) For Period ifrs-full:DividendsPaidOrdinarySharesPerShare
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2517 Borrowings face amount Concept (Monetary) As Of Credit ffh:BorrowingsFaceAmount
2518 Interest rate Concept (Percent) As Of ifrs-full:BorrowingsInterestRate
2519 Cash and investments, net Concept (Monetary) As Of Debit ifrs-full:NetFinancialAssetsSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreementsInStatementOfFinancialPosition
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2521 Revolving credit facility available Concept (Monetary) As Of Credit ifrs-full:UndrawnBorrowingFacilities
2522 Portfolio investments net of short sale and derivative obligations Concept (Monetary) As Of Debit ffh:InvestmentsNetOfDerivativeFinancialLiabilities
2523 Asset class percentage of portfolio investments Concept (Percent) As Of ffh:AssetClassPercentageOfInvestments
2524 Investments Concept (Monetary) As Of Debit ffh:Investments1
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2526 Income taxes payable Concept (Monetary) As Of Credit ifrs-full:CurrentTaxLiabilities
2527 Repayment of borrowings Concept (Monetary) For Period Credit ifrs-full:RepaymentsOfCurrentBorrowings
2528 2424409 - Disclosure - Financial Risk Management - Liquidity Risk - Financial Liabilities Maturity (Details) Network

*

*

 http://www.fairfax.ca/role/FinancialRiskManagementLiquidityRiskFinancialLiabilitiesMaturityDetails
2529 Disclosure of maturity analysis for non-derivative financial liabilities [table] Table

*

*

 ifrs-full:DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesTable
2530 Consolidated and separate financial statements [axis] Axis ifrs-full:ConsolidatedAndSeparateFinancialStatementsAxis
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2532 Holding Company, Insurance, and Reinsurance Companies Member ffh:HoldingCompanyInsuranceCompanyandReinsuranceCompanyMember
2533 Non-insurance companies Member ffh:NonInsuranceCompanyMember
2534 Types of risks [axis] Axis ifrs-full:TypesOfRisksAxis
2535 Risks [member] Member ifrs-full:TypesOfRisksMember
2536 Liquidity risk Member ifrs-full:LiquidityRiskMember
2537 Maturity [axis] Axis ifrs-full:MaturityAxis
2538 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
2539 Less than 3 months Member ifrs-full:NotLaterThanThreeMonthsMember
2540 3 months to 1 year Member ifrs-full:LaterThanThreeMonthsAndNotLaterThanOneYearMember
2541 1 - 3 years Member ifrs-full:LaterThanOneYearAndNotLaterThanThreeYearsMember
2542 3 - 5 years Member ifrs-full:LaterThanThreeYearsAndNotLaterThanFiveYearsMember
2543 More than 5 years Member ifrs-full:LaterThanFiveYearsMember
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2545 Accounts payable and accrued liabilities Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherPayablesUndiscountedCashFlows
2546 Funds withheld payable to reinsurers Concept (Monetary) As Of Credit ffh:ReinsurancePayableFundsWithheldFromReinsurers
2547 Provision for losses and loss adjustment expenses Concept (Monetary) As Of Credit ffh:LiabilityForClaimsAndClaimsAdjustmentExpense1
2548 Borrowings - principal Concept (Monetary) As Of Credit ffh:BankBorrowingsUndiscountedCashFlowsPrincipal
2549 Borrowings - interest Concept (Monetary) As Of Credit ffh:BankBorrowingsUndiscountedCashFlowsInterest
2550 Total financial liabilities Concept (Monetary) As Of Credit ifrs-full:NonderivativeFinancialLiabilitiesUndiscountedCashFlows
2551 2424410 - Disclosure - Financial Risk Management - Liquidity Risk - Derivative Financial Liabilities (Details) Network

*

*

 http://www.fairfax.ca/role/FinancialRiskManagementLiquidityRiskDerivativeFinancialLiabilitiesDetails
2552 Disclosure of maturity analysis for derivative financial liabilities [table] Table

*

*

 ifrs-full:DisclosureOfMaturityAnalysisForDerivativeFinancialLiabilitiesTable
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2561 U.S. treasury bond forward contracts Member ffh:USTreasuryBondForwardContractsMember
2562 Other derivative contracts Member ffh:OtherDerivativesMember
2563 Maturity [axis] Axis ifrs-full:MaturityAxis
2564 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
2565 Less than 3 months Member ifrs-full:NotLaterThanThreeMonthsMember
2566 3 months to 1 year Member ifrs-full:LaterThanThreeMonthsAndNotLaterThanOneYearMember
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2569 Derivative financial liabilities Concept (Monetary) As Of Credit ifrs-full:DerivativeFinancialLiabilitiesUndiscountedCashFlows
2570 2424411 - Disclosure - Financial Risk Management - Market Risk - Narrative (Details) Network

*

*

 http://www.fairfax.ca/role/FinancialRiskManagementMarketRiskNarrativeDetails
2571 Disclosure of nature and extent of risks arising from financial instruments [table] Table

*

*

 ifrs-full:DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsTable
2572 Legal Entity [Axis] Axis dei:LegalEntityAxis
2573 Entity [Domain] Member dei:EntityDomain
2574 Allied World Member ffh:AlliedWorldMember
2575 Classes of financial instruments [axis] Axis ifrs-full:ClassesOfFinancialInstrumentsAxis
2576 Financial instruments, class [member] Member ifrs-full:ClassesOfFinancialInstrumentsMember
2577 Bonds, U.S. treasury Member ffh:DebtSecuritiesUSTreasuryMember
2578 Bonds, U.S. Corporate Member ffh:DebtSecuritiesUnitedStatesCorporateMember
2579 Bonds, Canadian government Member ffh:DebtSecuritiesCanadianGovernmentMember
2580 Bonds, U.S. states and municipalities Member ffh:DebtSecuritiesUSStatesAndMunicipalitiesMember
2581 U.S. treasury bond forward contracts Member ffh:USTreasuryBondForwardContractsMember
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2583 Risks [member] Member ifrs-full:TypesOfRisksMember
2584 Interest rate risk Member ifrs-full:InterestRateRiskMember
2585 Classes of financial assets [axis] Axis ifrs-full:ClassesOfFinancialAssetsAxis
2586 Financial assets, class [member] Member ifrs-full:FinancialAssetsMember
2587 Bonds Member ifrs-full:DebtSecuritiesMember
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2592 Proceeds from issue of bonds, notes and debentures Concept (Monetary) For Period Debit ifrs-full:ProceedsFromIssueOfBondsNotesAndDebentures
2593 Notional amount Concept (Monetary) As Of ifrs-full:NotionalAmount
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2595 Increment change in interest rate on investments Concept (Percent) For Period ffh:SensitivityAnalysisForTypesOfMarketRiskReasonablyPossibleChangeInRiskVariableIncrementPercent
2596 2424412 - Disclosure - Financial Risk Management - Market Risk - Potential Impact of Changes in Interest Rates on Fixed Asset Portfolio (Details) Network

*

*

 http://www.fairfax.ca/role/FinancialRiskManagementMarketRiskPotentialImpactOfChangesInInterestRatesOnFixedAssetPortfolioDetails
2597 Disclosure of nature and extent of risks arising from financial instruments [table] Table

*

*

 ifrs-full:DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsTable
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2602 Financial assets, class [member] Member ifrs-full:FinancialAssetsMember
2603 Debt securities Member ifrs-full:DebtSecuritiesMember
2604 Disclosure of nature and extent of risks arising from financial instruments [line items] LineItems ifrs-full:DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsLineItems
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2606 Hypothetical $ change effect on net earnings, 200 basis point increase Concept (Monetary) For Period Debit ffh:SensitivityAnalysisForTypesOfMarketRiskTwoHundredBasisPointIncreaseImpactOnFinancialAssetsAtFairValueThroughProfitLossChange
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2608 Fair value of fixed income portfolio, 100 basis point increase Concept (Monetary) As Of Debit ffh:SensitivityAnalysisForTypesOfMarketRiskOneHundredBasisPointIncreaseImpactOnFinancialAssetsAtFairValueThroughProfitLoss
2609 Hypothetical $ change effect on net earnings, 100 basis point increase Concept (Monetary) For Period Debit ffh:SensitivityAnalysisForTypesOfMarketRiskOneHundredBasisPointIncreaseImpactOnFinancialAssetsAtFairValueThroughProfitLossChange
2610 Hypothetical % change in fair value, 100 basis point increase Concept (Percent) For Period ffh:SensitivityAnalysisForTypesOfMarketRiskOneHundredBasisPointIncreaseImpactOnFinancialAssetsAtFairValueThroughProfitLossPercentageChange
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2612 Fair value of fixed income portfolio, 100 basis point decrease Concept (Monetary) As Of Debit ffh:SensitivityAnalysisForTypesOfMarketRiskTwoHundredBasisPointDecreaseImpactOnFinancialAssetsAtFairValueThroughProfitLoss
2613 Hypothetical $ change effect on net earnings, 100 basis point decrease Concept (Monetary) For Period Debit ffh:SensitivityAnalysisForTypesOfMarketRiskTwoHundredBasisPointDecreaseImpactOnFinancialAssetsAtFairValueThroughProfitLossChange
2614 Hypothetical % change in fair value, 100 basis point decrease Concept (Percent) For Period ffh:SensitivityAnalysisForTypesOfMarketRiskTwoHundredBasisPointDecreaseImpactOnFinancialAssetsAtFairValueThroughProfitLossPercentageChange
2615 Fair value of fixed income portfolio, 200 basis point decrease Concept (Monetary) As Of Debit ffh:SensitivityAnalysisForTypesOfMarketRiskOneHundredBasisPointDecreaseImpactOnFinancialAssetsAtFairValueThroughProfitLoss
2616 Hypothetical $ change effect on net earnings, 200 basis point decrease Concept (Monetary) For Period Debit ffh:SensitivityAnalysisForTypesOfMarketRiskOneHundredBasisPointDecreaseImpactOnFinancialAssetsAtFairValueThroughProfitLossChange
2617 Hypothetical % change in fair value, 200 basis point decrease Concept (Percent) For Period ffh:SensitivityAnalysisForTypesOfMarketRiskOneHundredBasisPointDecreaseImpactOnFinancialAssetsAtFairValueThroughProfitLossPercentageChange
2618 2424413 - Disclosure - Financial Risk Management - Market Price Fluctuations - Narrative (Details) Network

*

*

 http://www.fairfax.ca/role/FinancialRiskManagementMarketPriceFluctuationsNarrativeDetails
2619 Disclosure of detailed information about financial instruments [table] Table

*

*

 ifrs-full:DisclosureOfFinancialInstrumentsTable
2620 Consolidated and separate financial statements [axis] Axis ifrs-full:ConsolidatedAndSeparateFinancialStatementsAxis
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2622 Holding company Member ffh:HoldingCompanyMember
2623 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
2624 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
2625 Canada Member country:CA
2626 Europe Member srt:EuropeMember
2627 Associates [axis] Axis ifrs-full:SignificantInvestmentsInAssociatesAxis
2628 Entity's total for associates [member] Member ifrs-full:EntitysTotalForAssociatesMember
2629 Non-insurance associates Member ffh:NonInsuranceAssociatesMember
2630 Quess Member ffh:QuessCorpLimitedMember
2631 Borrowings by name [axis] Axis ifrs-full:BorrowingsByNameAxis
2632 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
2633 Unsecured senior notes Member ffh:UnsecuredSeniorNotesMember
2634 2.75% due March 29, 2028 Member ffh:A2.75UnsecuredSeniorNotesDueMarch292028Member
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2637 Hedges of net investment in foreign operations Member ifrs-full:HedgesOfNetInvestmentInForeignOperationsMember
2638 Range [axis] Axis ifrs-full:RangeAxis
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2641 Top of range Member ifrs-full:TopOfRangeMember
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2645 Common Stock, Other Funds Member ffh:CommonStockOtherFundsMember
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2649 Other price risk Member ifrs-full:OtherPriceRiskMember
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2652 Financial instruments, class [member] Member ifrs-full:ClassesOfFinancialInstrumentsMember
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2654 Investment Portfolio With Single Largest Issuer Member ffh:InvestmentPortfolioWithSingleLargestIssuerMember
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2660 Share of profit of associates Concept (Monetary) For Period Credit ifrs-full:ShareOfProfitLossOfAssociatesAccountedForUsingEquityMethod
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2663 Risk exposure percentage Concept (Percent) As Of ffh:RiskExposureAssociatedWithInstrumentsSharingCharacteristicConcentrationPercentage
2664 Market value Concept (Monetary) As Of Debit ifrs-full:DerivativeFinancialAssets
2665 Average life (in years) Concept (xbrli:durationItemType) For Period ffh:DerivativeAverageRemainingMaturity2
2666 Notional amount Concept (Monetary) As Of ifrs-full:NotionalAmount
2667 Net change in unrealized gains (losses) Concept (Monetary) For Period Credit ifrs-full:GainsLossesRecognisedInProfitOrLossAttributableToChangeInUnrealisedGainsOrLossesForAssetsHeldAtEndOfPeriodFairValueMeasurement
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2669 Borrowings at fair value Concept (Monetary) As Of Credit ffh:HedgedItemLiabilitiesFairValue
2670 Fair value Concept (Monetary) As Of Credit ffh:BorrowingsAtFairValue
2671 Gains (losses) on hedge of net investment in Canadian subsidiaries Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeNetOfTaxHedgesOfNetInvestmentsInForeignOperations
2672 2424414 - Disclosure - Financial Risk Management - Market Price Fluctuations - Equity and Equity Related Holdings (Details) Network

*

*

 http://www.fairfax.ca/role/FinancialRiskManagementMarketPriceFluctuationsEquityAndEquityRelatedHoldingsDetails
2673 Disclosure of financial assets [table] Table

*

*

 ifrs-full:DisclosureOfFinancialAssetsTable
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2685 Equity index total return swaps – short positions Member ffh:EquityIndexTotalReturnSwapsShortPositionsMember
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2687 Share capital [member] Member ifrs-full:ClassesOfShareCapitalMember
2688 Common stocks Member ifrs-full:OrdinarySharesMember
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2692 Investments in associates and subsidiary Member ifrs-full:EquityInvestmentsMember
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2703 2424415 - Disclosure - Financial Risk Management - Market Price Fluctuations - Impact on Net Earnings (Details) Network

*

*

 http://www.fairfax.ca/role/FinancialRiskManagementMarketPriceFluctuationsImpactOnNetEarningsDetails
2704 Disclosure of nature and extent of risks arising from financial instruments [table] Table

*

*

 ifrs-full:DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsTable
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2710 Hypothetical $ change effect on net earnings, 10% increase Concept (Monetary) For Period Credit ffh:SensitivityAnalysisForTypesOfMarketRiskTenPercentIncreaseImpactOnPreTaxEarningsChange
2711 Hypothetical % change in fair value, 10% increase Concept (Percent) For Period ffh:SensitivityAnalysisForTypesOfMarketRiskTenPercentIncreaseImpactOnPreTaxEarningsPercentageChange
2712 Fair value of equity and equity-related holdings, 5% increase Concept (Monetary) For Period Credit ffh:SensitivityAnalysisForTypesOfMarketRiskFivePercentIncreaseImpactOnPreTaxEarnings
2713 Hypothetical $ change effect on net earnings, 5% increase Concept (Monetary) For Period Credit ffh:SensitivityAnalysisForTypesOfMarketRiskFivePercentIncreaseImpactOnPreTaxEarningsChange
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2717 Hypothetical % change in fair value, no change Concept (Percent) For Period ffh:SensitivityAnalysisForTypesOfMarketRiskNoChangeImpactOnPreTaxEarningsPercentageChange
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2720 Hypothetical % change in fair value, 5% decrease Concept (Percent) For Period ffh:SensitivityAnalysisForTypesOfMarketRiskFivePercentDecreaseImpactOnPreTaxEarningsPercentageChange
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2722 Hypothetical $ change effect on net earnings, 10% decrease Concept (Monetary) For Period Credit ffh:SensitivityAnalysisForTypesOfMarketRiskTenPercentDecreaseImpactOnPreTaxEarningsChange
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2724 2424416 - Disclosure - Financial Risk Management - Market Price Fluctuations - Pre Tax Foreign Exchange (Details) Network

*

*

 http://www.fairfax.ca/role/FinancialRiskManagementMarketPriceFluctuationsPreTaxForeignExchangeDetails
2725 Implied Table Table

*

*

 implied:Table
2726 Disclosure of nature and extent of risks arising from financial instruments [abstract] Abstract ifrs-full:DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsAbstract
2727 Investing activities Concept (Monetary) For Period Credit ffh:GainLossOnInvestmentsInvestingActivitiesForeignCurrencyImpact
2728 Underwriting activities Concept (Monetary) For Period Credit ffh:GainLossOnInvestmentsUnderwritingActivitiesForeignCurrencyImpact
2729 Foreign currency forward contracts Concept (Monetary) For Period Credit ffh:GainLossOnInvestmentsForeignCurrencyForwardContractsForeignCurrencyImpact
2730 Foreign currency net gains (losses) included in pre-tax earnings (loss) Concept (Monetary) For Period Credit ffh:ForeignCurrencyTransactionGainLossBeforeTax1
2731 2424417 - Disclosure - Financial Risk Management - Market Price Fluctuations - Currency Appreciation (Details) Network

*

*

 http://www.fairfax.ca/role/FinancialRiskManagementMarketPriceFluctuationsCurrencyAppreciationDetails
2732 Effect Of Currency Appreciation [Table] Table

*

*

 ffh:EffectOfCurrencyAppreciationTable
2733 Types of risks [axis] Axis ifrs-full:TypesOfRisksAxis
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2735 Currency risk Member ifrs-full:CurrencyRiskMember
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2738 Canadian dollar Member currency:CAD
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2740 British pound sterling Member currency:GBP
2741 Indian rupee Member currency:INR
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2745 Net earnings (loss) Concept (Monetary) For Period Credit ffh:SensitivityAnalysisForTypesOfMarketRiskReasonablyPossibleChangeInRiskVariableImpactOnProfitLoss
2746 Pre-tax other comprehensive income (loss) Concept (Monetary) For Period Credit ffh:SensitivityAnalysisForTypesOfMarketRiskReasonablyPossibleChangeInRiskVariableImpactOnOtherComprehensiveIncomeBeforeTax
2747 Other comprehensive income (loss) Concept (Monetary) For Period Credit ffh:SensitivityAnalysisForTypesOfMarketRiskReasonablyPossibleChangeInRiskVariableImpactOnOtherComprehensiveIncome
2748 2424418 - Disclosure - Financial Risk Management - Capital Management - Narrative (Details) Network

*

*

 http://www.fairfax.ca/role/FinancialRiskManagementCapitalManagementNarrativeDetails
2749 Disclosure of detailed information about financial instruments [table] Table

*

*

 ifrs-full:DisclosureOfFinancialInstrumentsTable
2750 Associates [axis] Axis ifrs-full:SignificantInvestmentsInAssociatesAxis
2751 Entity's total for associates [member] Member ifrs-full:EntitysTotalForAssociatesMember
2752 Quess Member ffh:QuessCorpLimitedMember
2753 Classes of assets [axis] Axis ifrs-full:ClassesOfAssetsAxis
2754 Assets [member] Member ifrs-full:ClassesOfAssetsMember
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2756 Borrowings by name [axis] Axis ifrs-full:BorrowingsByNameAxis
2757 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
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2759 Disclosure of detailed information about financial instruments [line items] LineItems ifrs-full:DisclosureOfFinancialInstrumentsLineItems
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2761 Share of profit of associates Concept (Monetary) For Period Credit ifrs-full:ShareOfProfitLossOfAssociatesAccountedForUsingEquityMethod
2762 Notional amount Concept (Monetary) As Of ifrs-full:NotionalAmount
2763 Minimum supervisory target Concept (Percent) For Period ffh:PropertyAndCasualtyInsuranceMinimumCapitalTestMinimumSupervisoryTargetPercentage
2764 2424419 - Disclosure - Financial Risk Management - Capital Management - Schedule of Capital (Details) Network

*

*

 http://www.fairfax.ca/role/FinancialRiskManagementCapitalManagementScheduleOfCapitalDetails
2765 Disclosure of financial liabilities [table] Table

*

*

 ifrs-full:DisclosureOfFinancialLiabilitiesTable
2766 Consolidated Entities [Axis] Axis srt:ConsolidatedEntitiesAxis
2767 Consolidated Entities [Domain] Member srt:ConsolidatedEntitiesDomain
2768 Excluding consolidated non-insurance companies Member ffh:ConsolidatedExcludingNonInsuranceCompaniesMember
2769 Consolidated and separate financial statements [axis] Axis ifrs-full:ConsolidatedAndSeparateFinancialStatementsAxis
2770 Consolidated [member] Member ifrs-full:ConsolidatedMember
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2773 Non-insurance companies Member ffh:NonInsuranceCompanyMember
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2775 Share capital [member] Member ifrs-full:ClassesOfShareCapitalMember
2776 Common shareholders’ equity Member ifrs-full:OrdinarySharesMember
2777 Preferred shares Member ifrs-full:PreferenceSharesMember
2778 Disclosure of financial liabilities [line items] LineItems ifrs-full:DisclosureOfFinancialLiabilitiesLineItems
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2780 Borrowings Concept (Monetary) As Of Credit ifrs-full:Borrowings
2781 Net debt Concept (Monetary) As Of Credit ifrs-full:NetDebt
2782 Equity in stock Concept (Monetary) As Of Credit ifrs-full:IssuedCapital
2783 Non-controlling interests Concept (Monetary) As Of Credit ifrs-full:NoncontrollingInterests
2784 Total equity Concept (Monetary) As Of Credit ifrs-full:Equity
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2786 Net debt/net total capital Concept (Percent) As Of ffh:NetDebtToNetTotalCapitalPercentage
2787 Total debt/total capital Concept (Percent) As Of ffh:TotalDebtToTotalCapitalPercentage
2788 Interest coverage Concept (Pure) As Of ffh:InterestCoverageRatio
2789 Interest and preferred share dividend distribution coverage Concept (Pure) As Of ffh:InterestAndPreferredShareDividendDistributionCoverageRatio
2790 2425402 - Disclosure - Segmented Information - Narrative (Details) Network

*

*

 http://www.fairfax.ca/role/SegmentedInformationNarrativeDetails
2791 Disclosure of operating segments [table] Table

*

*

 ifrs-full:DisclosureOfOperatingSegmentsTable
2792 Associates [axis] Axis ifrs-full:SignificantInvestmentsInAssociatesAxis
2793 Entity's total for associates [member] Member ifrs-full:EntitysTotalForAssociatesMember
2794 Bank for Investment and Development of Vietnam Insurance Joint Stock Corporation Member ffh:BankforInvestmentandDevelopmentofVietnamInsuranceJointStockCorporationMember
2795 Falcon Insurance PLC Member ffh:FalconInsurancePLCMember
2796 ICICI Lombard Member ffh:ICICILombardGeneralInsuranceCompanyLimitedMember
2797 Disclosure of operating segments [line items] LineItems ifrs-full:DisclosureOfOperatingSegmentsLineItems
2798 Ownership percentage Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInAssociate
2799 2425403 - Disclosure - Segmented Information - Operating Segments (Details) Network

*

*

 http://www.fairfax.ca/role/SegmentedInformationOperatingSegmentsDetails
2800 Disclosure of operating segments [table] Table

*

*

 ifrs-full:DisclosureOfOperatingSegmentsTable
2801 Subsegments 1 [Axis] Axis ffh:Subsegments1Axis
2802 Subsegments 1 [Domain] Member ffh:Subsegments1Domain
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2805 Crum & Forster Member ffh:CrumForsterHoldingsCorp.Member
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2807 Brit Member ffh:BritLimitedMember
2808 Allied World Member ffh:AlliedWorldMember
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2813 External Member ffh:ReportableSubsegments1Member
2814 Intercompany Member ffh:IntersubsegmentEliminations1Member
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2818 Reportable segments Member ifrs-full:ReportableSegmentsMember
2819 Corporate and Other Member ffh:CorporateNonSegment1Member
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2828 Net premiums written Concept (Monetary) For Period Credit ifrs-full:PremiumsWrittenNetOfReinsurance
2829 Net earned premium Concept (Monetary) For Period Credit ifrs-full:NetEarnedPremium
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2831 Underwriting profit (loss) Concept (Monetary) For Period Credit ffh:UnderwritingIncomeLoss1
2832 Interest income Concept (Monetary) For Period Credit ifrs-full:RevenueFromInterest
2833 Dividends Concept (Monetary) For Period Credit ifrs-full:RevenueFromDividends
2834 Investment expenses Concept (Monetary) For Period Credit ifrs-full:FeeIncomeExpenseArisingFromTrustAndFiduciaryActivities
2835 Interest and dividends Concept (Monetary) For Period Credit ifrs-full:InvestmentIncome
2836 Share of profit (loss) of associates Concept (Monetary) For Period Credit ifrs-full:ShareOfProfitLossOfAssociatesAccountedForUsingEquityMethod
2837 Other revenue Concept (Monetary) For Period Credit ifrs-full:OtherIncome
2838 Other expenses Concept (Monetary) For Period Debit ifrs-full:OtherExpenseByNature
2839 Other revenue (expenses) Concept (Monetary) For Period Credit ifrs-full:OtherGainsLosses
2840 Operating income (loss) Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromOperatingActivities
2841 Net gains (losses) on investments Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLoss
2842 Gain on sale of subsidiary Concept (Monetary) For Period Credit ifrs-full:AdjustmentsForGainLossOnDisposalOfInvestmentsInSubsidiariesJointVenturesAndAssociates
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2844 Interest expense Concept (Monetary) For Period Debit ifrs-full:InterestExpense
2845 Corporate overhead Concept (Monetary) For Period Debit ffh:GeneralAndAdministrativeExpense1
2846 Earnings before income taxes Concept (Monetary) For Period Credit ifrs-full:ProfitLossBeforeTax
2847 Income taxes Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
2848 Net earnings Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
2849 Shareholders of Fairfax Concept (Monetary) For Period Credit ifrs-full:ProfitLossAttributableToOwnersOfParent
2850 Non-controlling interests Concept (Monetary) For Period Credit ifrs-full:ProfitLossAttributableToNoncontrollingInterests
2851 2425404 - Disclosure - Segmented Information - Underwriting Expenses (Details) Network

*

*

 http://www.fairfax.ca/role/SegmentedInformationUnderwritingExpensesDetails
2852 Disclosure of operating segments [table] Table

*

*

 ifrs-full:DisclosureOfOperatingSegmentsTable
2853 Subsegments 1 [Axis] Axis ffh:Subsegments1Axis
2854 Subsegments 1 [Domain] Member ffh:Subsegments1Domain
2855 Northbridge Member ffh:NorthbridgeFinancialCorporationMember
2856 Odyssey Group Member ffh:OdysseyGroupHoldingsInc.Member
2857 Crum & Forster Member ffh:CrumForsterHoldingsCorp.Member
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2859 Brit Member ffh:BritLimitedMember
2860 Allied World Member ffh:AlliedWorldMember
2861 Fairfax Asia Member ffh:FairfaxAsiaSegmentMember
2862 Other Member ffh:InsuranceAndReinsuranceOtherSegmentMember
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2864 Entity's total for segment consolidation items [member] Member ifrs-full:EntitysTotalForSegmentConsolidationItemsMember
2865 Operating companies Member ifrs-full:OperatingSegmentsMember
2866 Segments [axis] Axis ifrs-full:SegmentsAxis
2867 Segments [member] Member ifrs-full:SegmentsMember
2868 Insurance and Reinsurance Member ffh:InsuranceAndReinsuranceSegmentMember
2869 Disclosure of operating segments [line items] LineItems ifrs-full:DisclosureOfOperatingSegmentsLineItems
2870 Loss & LAE - accident year Concept (Monetary) For Period Debit ffh:SupplementalInformationForPropertyCasualtyInsuranceUnderwritersCurrentYearClaimsAndClaimsAdjustmentExpense1
2871 Commissions Concept (Monetary) For Period Debit ffh:InsuranceCommissions1
2872 Premium acquisition costs and other underwriting expenses Concept (Monetary) For Period Debit ffh:PremiumAcquisitionCostsAndOtherUnderwritingExpenses
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2874 Net favourable claims reserve development Concept (Monetary) For Period Credit ffh:LiabilityForClaimsAndClaimsAdjustmentExpenseFavorableUnfavorableDevelopment
2875 Total underwriting expenses - calendar year Concept (Monetary) For Period Debit ffh:ExpenseRelatedToDistributionOrServicingAndUnderwritingFees1
2876 2425405 - Disclosure - Segmented Information - Investments In Associates (Details) Network

*

*

 http://www.fairfax.ca/role/SegmentedInformationInvestmentsInAssociatesDetails
2877 Disclosure of operating segments [table] Table

*

*

 ifrs-full:DisclosureOfOperatingSegmentsTable
2878 Segment consolidation items [axis] Axis ifrs-full:SegmentConsolidationItemsAxis
2879 Entity's total for segment consolidation items [member] Member ifrs-full:EntitysTotalForSegmentConsolidationItemsMember
2880 Operating companies Member ifrs-full:OperatingSegmentsMember
2881 Reportable segments Member ifrs-full:ReportableSegmentsMember
2882 Corporate and Other and eliminations and adjustments Member ifrs-full:MaterialReconcilingItemsMember
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2884 Subsegments 1 [Domain] Member ffh:Subsegments1Domain
2885 Northbridge Member ffh:NorthbridgeFinancialCorporationMember
2886 Odyssey Group Member ffh:OdysseyGroupHoldingsInc.Member
2887 Crum & Forster Member ffh:CrumForsterHoldingsCorp.Member
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2889 Brit Member ffh:BritLimitedMember
2890 Allied World Member ffh:AlliedWorldMember
2891 Fairfax Asia Member ffh:FairfaxAsiaMember
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2896 Runoff Member ffh:RunoffReportableSegmentMember
2897 Other Member ffh:OtherReportableSegmentMember
2898 Disclosure of operating segments [line items] LineItems ifrs-full:DisclosureOfOperatingSegmentsLineItems
2899 Investments in associates Concept (Monetary) As Of Debit ifrs-full:InvestmentsInAssociates
2900 Additions to goodwill Concept (Monetary) For Period Debit ifrs-full:AdditionalRecognitionGoodwill
2901 Segment assets Concept (Monetary) As Of Debit ifrs-full:Assets
2902 Segment liabilities Concept (Monetary) As Of Credit ifrs-full:Liabilities
2903 2425406 - Disclosure - Segmented Information - Product Line (Details) Network

*

*

 http://www.fairfax.ca/role/SegmentedInformationProductLineDetails
2904 Disclosure of products and services [table] Table

*

*

 ifrs-full:DisclosureOfProductsAndServicesTable
2905 Subsegments 1 [Axis] Axis ffh:Subsegments1Axis
2906 Subsegments 1 [Domain] Member ffh:Subsegments1Domain
2907 Northbridge Member ffh:NorthbridgeFinancialCorporationMember
2908 Odyssey Group Member ffh:OdysseyGroupHoldingsInc.Member
2909 Crum & Forster Member ffh:CrumForsterHoldingsCorp.Member
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2911 Brit Member ffh:BritLimitedMember
2912 Allied World Member ffh:AlliedWorldMember
2913 Fairfax Asia Member ffh:FairfaxAsiaMember
2914 Other Member ffh:InsuranceAndReinsuranceOtherSegmentMember
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2916 Concentration Risk By Type1 [Domain] Member ffh:ConcentrationRiskByType1Domain
2917 Product Concentration Member ffh:ProductConcentrationRisk1Member
2918 Concentration Risk By Benchmark1 [Axis] Axis ffh:ConcentrationRiskByBenchmark1Axis
2919 Concentration Risk By Benchmark1 [Domain] Member ffh:ConcentrationRiskByBenchmark1Domain
2920 Net Premiums Earned Member ffh:NetPremiumsEarnedMember
2921 Segment consolidation items [axis] Axis ifrs-full:SegmentConsolidationItemsAxis
2922 Entity's total for segment consolidation items [member] Member ifrs-full:EntitysTotalForSegmentConsolidationItemsMember
2923 Operating companies Member ifrs-full:OperatingSegmentsMember
2924 Reportable segments Member ifrs-full:ReportableSegmentsMember
2925 Products and services [axis] Axis ifrs-full:ProductsAndServicesAxis
2926 Products and services [member] Member ifrs-full:ProductsAndServicesMember
2927 Property Member ffh:PropertyMember
2928 Casualty Member ffh:CasualtyMember
2929 Specialty Member ffh:SpecialtyMember
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2931 Segments [member] Member ifrs-full:SegmentsMember
2932 Insurance and Reinsurance Member ffh:InsuranceAndReinsuranceSegmentMember
2933 Runoff Member ffh:RunoffReportableSegmentMember
2934 Disclosure of products and services [line items] LineItems ifrs-full:DisclosureOfProductsAndServicesLineItems
2935 Net earned premium Concept (Monetary) For Period Credit ifrs-full:NetEarnedPremium
2936 Interest and dividends Concept (Monetary) For Period Credit ifrs-full:InvestmentIncome
2937 Share of profit of associates Concept (Monetary) For Period Credit ifrs-full:ShareOfProfitLossOfAssociatesAccountedForUsingEquityMethod
2938 Net gains on investments Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLoss
2939 Gain on sale of subsidiary Concept (Monetary) For Period Credit ifrs-full:AdjustmentsForGainLossOnDisposalOfInvestmentsInSubsidiariesJointVenturesAndAssociates
2940 Other revenue Concept (Monetary) For Period Credit ifrs-full:OtherIncome
2941 Income Concept (Monetary) For Period Credit ifrs-full:Revenue
2942 Allocation of net premiums earned Concept (Percent) For Period ffh:ConcentrationRiskPercentage2
2943 2425407 - Disclosure - Segmented Information - Geographic Region (Details) Network

*

*

 http://www.fairfax.ca/role/SegmentedInformationGeographicRegionDetails
2944 Disclosure of geographical areas [table] Table

*

*

 ifrs-full:DisclosureOfGeographicalAreasTable
2945 Concentration Risk By Type1 [Axis] Axis ffh:ConcentrationRiskByType1Axis
2946 Concentration Risk By Type1 [Domain] Member ffh:ConcentrationRiskByType1Domain
2947 Geographic Member ffh:GeographicConcentrationRisk1Member
2948 Concentration Risk By Benchmark1 [Axis] Axis ffh:ConcentrationRiskByBenchmark1Axis
2949 Concentration Risk By Benchmark1 [Domain] Member ffh:ConcentrationRiskByBenchmark1Domain
2950 Net Premiums Earned Member ffh:NetPremiumsEarnedMember
2951 Segments [axis] Axis ifrs-full:SegmentsAxis
2952 Segments [member] Member ifrs-full:SegmentsMember
2953 Insurance and Reinsurance Member ffh:InsuranceAndReinsuranceSegmentMember
2954 Runoff Member ffh:RunoffReportableSegmentMember
2955 Segment consolidation items [axis] Axis ifrs-full:SegmentConsolidationItemsAxis
2956 Entity's total for segment consolidation items [member] Member ifrs-full:EntitysTotalForSegmentConsolidationItemsMember
2957 Operating companies Member ifrs-full:OperatingSegmentsMember
2958 Reportable segments Member ifrs-full:ReportableSegmentsMember
2959 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
2960 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
2961 Canada Member country:CA
2962 United States Member country:US
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2964 International Member ffh:AustraliaAfricaEuropeAndSouthAmericaMember
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2966 Subsegments 1 [Domain] Member ffh:Subsegments1Domain
2967 Northbridge Member ffh:NorthbridgeFinancialCorporationMember
2968 Odyssey Group Member ffh:OdysseyGroupHoldingsInc.Member
2969 Crum & Forster Member ffh:CrumForsterHoldingsCorp.Member
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2971 Brit Member ffh:BritLimitedMember
2972 Allied World Member ffh:AlliedWorldMember
2973 Fairfax Asia Member ffh:FairfaxAsiaMember
2974 Other Member ifrs-full:AllOtherSegmentsMember
2975 Disclosure of geographical areas [line items] LineItems ifrs-full:DisclosureOfGeographicalAreasLineItems
2976 Net earned premium Concept (Monetary) For Period Credit ifrs-full:NetEarnedPremium
2977 Interest and dividends Concept (Monetary) For Period Credit ifrs-full:InvestmentIncome
2978 Share of profit of associates Concept (Monetary) For Period Credit ifrs-full:ShareOfProfitLossOfAssociatesAccountedForUsingEquityMethod
2979 Net gains (losses) on investments Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLoss
2980 Gain on sale of subsidiary Concept (Monetary) For Period Credit ifrs-full:AdjustmentsForGainLossOnDisposalOfInvestmentsInSubsidiariesJointVenturesAndAssociates
2981 Other revenue Concept (Monetary) For Period Credit ifrs-full:OtherIncome
2982 Income Concept (Monetary) For Period Credit ifrs-full:Revenue
2983 Allocation of net premiums earned Concept (Percent) For Period ffh:ConcentrationRiskPercentage2
2984 2425408 - Disclosure - Segmented Information - Other Operating Segment (Details) Network

*

*

 http://www.fairfax.ca/role/SegmentedInformationOtherOperatingSegmentDetails
2985 Disclosure of operating segments [table] Table

*

*

 ifrs-full:DisclosureOfOperatingSegmentsTable
2986 New IFRSs [axis] Axis ifrs-full:NewIFRSsAxis
2987 New IFRSs [member] Member ifrs-full:NewIFRSsMember
2988 IFRS 15 Member ffh:IFRS15Member
2989 Legal Entity [Axis] Axis dei:LegalEntityAxis
2990 Entity [Domain] Member dei:EntityDomain
2991 Thomas Cook India Member ffh:ThomasCookIndiaLimitedMember
2992 Subsegments 1 [Axis] Axis ffh:Subsegments1Axis
2993 Subsegments 1 [Domain] Member ffh:Subsegments1Domain
2994 Restaurants and retail Member ffh:RestaurantsAndRetailMember
2995 Fairfax India Member ffh:FairfaxIndiaHoldingsCorporationMember
2996 Thomas Cook India Member ffh:ThomasCookIndiaLimitedMember
2997 Other Member ffh:OtherSubsegmentsMember
2998 Segment consolidation items [axis] Axis ifrs-full:SegmentConsolidationItemsAxis
2999 Entity's total for segment consolidation items [member] Member ifrs-full:EntitysTotalForSegmentConsolidationItemsMember
3000 Reportable segments Member ifrs-full:ReportableSegmentsMember
3001 Segments [axis] Axis ifrs-full:SegmentsAxis
3002 Segments [member] Member ifrs-full:SegmentsMember
3003 Other Member ffh:OtherReportableSegmentMember
3004 Disclosure of operating segments [line items] LineItems ifrs-full:DisclosureOfOperatingSegmentsLineItems
3005 Other revenue Concept (Monetary) For Period Credit ifrs-full:OtherIncome
3006 Other expenses Concept (Monetary) For Period Debit ifrs-full:OtherExpenseByNature
3007 Other revenue (expenses) Concept (Monetary) For Period Credit ifrs-full:OtherGainsLosses
3008 Revenue Concept (Monetary) For Period Credit ifrs-full:RevenueFromContractsWithCustomers
3009 Cost of sales Concept (Monetary) For Period Debit ifrs-full:CostOfSales
3010 2426402 - Disclosure - Expenses (Details) Network

*

*

 http://www.fairfax.ca/role/ExpensesDetails
3011 Expenses [Table] Table

*

*

 ffh:ExpensesTable
3012 Consolidated and separate financial statements [axis] Axis ifrs-full:ConsolidatedAndSeparateFinancialStatementsAxis
3013 Consolidated [member] Member ifrs-full:ConsolidatedMember
3014 Insurance and reinsurance companies Member ffh:InsuranceAndReinsuranceCompaniesMember
3015 Non-insurance companies Member ffh:NonInsuranceCompanyMember
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3017 Losses and loss adjustment expenses Concept (Monetary) For Period Debit ffh:SupplementalInformationForPropertyCasualtyInsuranceUnderwritersClaimsAndClaimsAdjustmentExpense1
3018 Other reporting segment cost of sales Concept (Monetary) For Period Debit ifrs-full:CostOfSales
3019 Wages and salaries Concept (Monetary) For Period Debit ifrs-full:WagesAndSalaries
3020 Employee benefits Concept (Monetary) For Period Debit ifrs-full:EmployeeBenefitsExpense
3021 Depreciation, amortization and impairment charges Concept (Monetary) For Period Debit ifrs-full:DepreciationAmortisationAndImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss
3022 Operating lease costs Concept (Monetary) For Period Debit ifrs-full:MinimumOperatingLeasePayments
3023 Premium taxes Concept (Monetary) For Period Debit ifrs-full:TaxExpenseOtherThanIncomeTaxExpense
3024 Information technology costs Concept (Monetary) For Period Debit ffh:InformationTechnologyAndDataProcessing1
3025 Audit, legal and tax professional fees Concept (Monetary) For Period Debit ifrs-full:ProfessionalFeesExpense
3026 Other reporting segment marketing costs Concept (Monetary) For Period Debit ifrs-full:SalesAndMarketingExpense
3027 Share-based payments to directors and employees Concept (Monetary) For Period Debit ifrs-full:ExpenseFromSharebasedPaymentTransactionsWithEmployees
3028 Restructuring costs Concept (Monetary) For Period Debit ifrs-full:ExpenseOfRestructuringActivities
3029 Loss on repurchase of borrowings Concept (Monetary) For Period Credit ffh:GainLossOnRepurchaseOfDebtInstrument1
3030 Administrative expense and other Concept (Monetary) For Period Debit ifrs-full:AdministrativeExpense
3031 Total expenses Concept (Monetary) For Period Debit ffh:OperatingAndOtherExpenses
3032 2427402 - Disclosure - Supplementary Cash Flow Information - Supplemental Balance Sheet Information (Details) Network

*

*

 http://www.fairfax.ca/role/SupplementaryCashFlowInformationSupplementalBalanceSheetInformationDetails
3033 Entities [Table] Table

*

*

 dei:EntitiesTable
3034 Classes of assets [axis] Axis ifrs-full:ClassesOfAssetsAxis
3035 Assets [member] Member ifrs-full:ClassesOfAssetsMember
3036 Cash Member ffh:Cash1Member
3037 Cash equivalents Member ffh:CashEquivalents1Member
3038 Total Member ffh:CashAndCashEquivalents1Member
3039 Consolidated and separate financial statements [axis] Axis ifrs-full:ConsolidatedAndSeparateFinancialStatementsAxis
3040 Consolidated [member] Member ifrs-full:ConsolidatedMember
3041 Holding company cash and investments Member ffh:HoldingCompanyMember
3042 Subsidiary cash and short term investments Member ffh:SubsidiaryCashAndShortTermInvestmentsMember
3043 Subsidiary assets pledged for short sale and derivative obligations Member ffh:ShortTermInvestmentsPledgedForShortSaleAndDerivativeObligationsMember
3044 Fairfax India Member ffh:FairfaxIndiaHoldingsCorporationMember
3045 Fairfax Africa Member ffh:FairfaxAfricaHoldingsCorporationMember
3046 Entity Information [Line Items] LineItems dei:EntityInformationLineItems
3047 Cash and cash equivalents as presented on the consolidated statements of cash flows Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalentsIfDifferentFromStatementOfFinancialPosition
3048 Restricted cash Concept (Monetary) As Of Debit ffh:RestrictedCash1
3049 Restricted cash equivalents Concept (Monetary) As Of Debit ffh:RestrictedCashEquivalents1
3050 Restricted cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:RestrictedCashAndCashEquivalents
3051 Cash Concept (Monetary) As Of Debit ifrs-full:Cash
3052 Cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashEquivalents
3053 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
3054 2427403 - Disclosure - Supplementary Cash Flow Information - Supplemental Cash Flow Information (Details) Network

*

*

 http://www.fairfax.ca/role/SupplementaryCashFlowInformationSupplementalCashFlowInformationDetails
3055 Implied Table Table

*

*

 implied:Table
3056 Cash Flow Statement [Abstract] Abstract ffh:CashFlowStatementAbstract
3057 Net (purchases) sales of securities classified as FVTPL Abstract ffh:NetpurchasessalesofsecuritiesclassifiedasFVTPLAbstract
3058 Short term investments Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInDecreaseIncreaseInShorttermDepositsAndInvestments
3059 Bonds Concept (Monetary) For Period Debit ifrs-full:ProceedsFromIssueOfBondsNotesAndDebentures
3060 Preferred stocks Concept (Monetary) For Period Debit ffh:ProceedsFromPurchasesOfPreferredEquityInstrumentsHeld
3061 Common stocks Concept (Monetary) For Period Debit ffh:ProceedsFromPurchasesOfCommonEquityInstrumentsHeld
3062 Derivatives and short sales Concept (Monetary) For Period Debit ffh:ProceedsFromPurchasesOfDerivativeFinancialAssets
3063 Net sales of securities classified as FVTPL Concept (Monetary) For Period Debit ffh:ProceedsForPurchasesOfFinancialAssetsAtFairValueThroughProfitOrLoss
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3065 Net decrease (increase) in restricted cash and cash equivalents Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInDecreaseIncreaseInRestrictedCashAndCashEquivalents
3066 Provision for losses and loss adjustment expenses Concept (Monetary) For Period Debit ffh:AdjustmentsForProvisionForLossesAndLossAdjustmentExpenses
3067 Provision for unearned premiums Concept (Monetary) For Period Debit ffh:AdjustmentsForProvisionForUnearnedPremiums
3068 Insurance contract receivables Concept (Monetary) For Period Debit ffh:AdjustmentsForIncreaseDecreaseInAssetsUnderInsuranceContractsAndReinsuranceContractsIssued
3069 Recoverable from reinsurers Concept (Monetary) For Period Debit ffh:AdjustmentsForIncreaseDecreaseInAssetsUnderReinsuranceCeded
3070 Other receivables Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDecreaseIncreaseInOtherOperatingReceivables
3071 Funds withheld payable to reinsurers Concept (Monetary) For Period Debit ffh:AdjustmentsForIncreaseDecreaseInFundsWithheldPayableToReinsurers
3072 Accounts payable and accrued liabilities Concept (Monetary) For Period Debit ffh:AdjustmentsForIncreaseDecreaseInAccountsPayableAndAccruedLiabilities
3073 Income taxes payable Concept (Monetary) For Period Debit ffh:AdjustmentsForIncreaseDecreaseInIncomeTaxesPayable
3074 Other Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForIncreaseDecreaseInOtherLiabilities
3075 Changes in operating assets and liabilities Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseInWorkingCapital
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3077 Interest and dividends received Concept (Monetary) For Period Debit ifrs-full:InterestReceivedClassifiedAsOperatingActivities
3078 Interest paid Concept (Monetary) For Period Credit ifrs-full:InterestPaidClassifiedAsOperatingActivities
3079 Net interest and dividends received Concept (Monetary) For Period Debit ffh:InterestReceivedPaidClassifiedAsOperatingActivities
3080 Net income taxes paid Concept (Monetary) For Period Credit ifrs-full:IncomeTaxesPaidRefund
3081 2428402 - Disclosure - Related Party Transactions (Details) Network

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*

 http://www.fairfax.ca/role/RelatedPartyTransactionsDetails
3082 Disclosure of transactions between related parties [table] Table

*

*

 ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesTable
3083 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
3084 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
3085 Key management team Member ifrs-full:KeyManagementPersonnelOfEntityOrParentMember
3086 Board of Directors Member ffh:BoardOfDirectorsChairman1Member
3087 Lissom Member ffh:LissomInvestmentManagementInc.Member
3088 Fairfax India Member ffh:FairfaxIndiaHoldingsCorporationMember
3089 Disclosure of transactions between related parties [line items] LineItems ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesLineItems
3090 Salaries and other short-term employee benefits Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensationShorttermEmployeeBenefits
3091 Retainers and fees Concept (Monetary) For Period Debit ffh:KeyManagementPersonnelCompensationRetainersAndFees
3092 Share-based payments Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensationSharebasedPayment
3093 Related party compensation Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensation
3094 Performance fee revenue Concept (Monetary) For Period Credit ifrs-full:RevenueFromRenderingOfServicesRelatedPartyTransactions
3095 Amount of operating companies managed Concept (Monetary) For Period Debit ffh:RelatedPartyTransactionAmountManagedByRelatedParty
3096 2429402 - Disclosure - Subsidiaries (Details) Network

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 http://www.fairfax.ca/role/SubsidiariesDetails
3097 Disclosure of subsidiaries [table] Table

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 ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesTable
3098 Legal Entity [Axis] Axis dei:LegalEntityAxis
3099 Entity [Domain] Member dei:EntityDomain
3100 Recipe Unlimited Corporation Member ffh:RecipeUnlimitedCorporationMember
3101 Sporting Life Group Limited Member ffh:SportingLifeGroupLimitedMember
3102 Fairfax India Member ffh:FairfaxIndiaHoldingsCorporationMember
3103 Thomas Cook India Member ffh:ThomasCookIndiaLimitedMember
3104 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
3105 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
3106 Northbridge Financial Corporation (Northbridge) Member ffh:NorthbridgeFinancialCorporationMember
3107 Odyssey Group Holdings, Inc. (Odyssey Group) Member ffh:OdysseyGroupHoldingsInc.Member
3108 Hudson Insurance Company (Hudson Insurance) Member ffh:HudsonInsuranceCompanyMember
3109 Newline Holdings UK Limited (Newline) Member ffh:NewlineHoldingsU.K.LimitedMember
3110 Crum & Forster Holdings Corp. (Crum & Forster) Member ffh:CrumForsterHoldingsCorp.Member
3111 Zenith National Insurance Corp. (Zenith National) Member ffh:ZenithNationalMember
3112 Brit Limited (Brit) Member ffh:BritLimitedMember
3113 Allied World Assurance Company Holdings, GmbH (Allied World) Member ffh:AlliedWorldMember
3114 Advent Capital (Holdings) Ltd. (Advent) Member ffh:AdventCapitalHoldingsLtd.Member
3115 Polskie Towarzystwo Reasekuracji Spólka Akcyjna (Polish Re) Member ffh:PolskieTowarzystwoReasekuracjiSplkaAkcyjnaPolishReMember
3116 Colonnade Insurance S.A. (Colonnade Insurance) Member ffh:ColonnadeInsuranceS.A.Member
3117 Fairfax Brasil Seguros Corporativos S.A. (Fairfax Brasil) Member ffh:FairfaxBrasilSegurosCorporativosS.A.Member
3118 La Meridional Compañía Argentina de Seguros S.A. (La Meridional Argentina) Member ffh:LaMeridionalCompaaArgentinadeSegurosS.A.Member
3119 SBS Seguros Colombia S.A. (SouthBridge Colombia) Member ffh:SBSSegurosColombiaS.A.Member
3120 SBI Seguros Uruguay S.A. (SouthBridge Uruguay) Member ffh:SBISegurosUruguayS.A.Member
3121 Southbridge Compañía de Seguros Generales S.A. (SouthBridge Chile) Member ffh:SouthbridgeCompaadeSegurosGeneralesS.A.Member
3122 Bryte Insurance Company Ltd (Bryte Insurance) Member ffh:BryteInsuranceCompanyLimitedMember
3123 CRC Reinsurance Limited (CRC Re) Member ffh:CRCReinsuranceLimitedMember
3124 Wentworth Insurance Company Ltd. (Wentworth) Member ffh:WentworthInsuranceCompanyLtd.Member
3125 Falcon Insurance Company (Hong Kong) Limited (Falcon) Member ffh:FalconInsuranceHongKongCompanyLtd.Member
3126 The Pacific Insurance Berhad (Pacific Insurance) Member ffh:ThePacificInsuranceBerhadMember
3127 PT Asuransi Multi Artha Guna Tbk (AMAG Insurance) Member ffh:PTAsuransiMultiArthaGunaTbkMember
3128 Fairfirst Insurance Limited (Fairfirst Insurance) Member ffh:FairfirstInsuranceMember
3129 TIG Insurance Company (TIG Insurance) Member ffh:TIGInsuranceCompanyMember
3130 RiverStone Insurance (UK) Limited (RiverStone (UK)) Member ffh:RiverStoneInsuranceUKLimitedMember
3131 RiverStone Managing Agency Limited Member ffh:RiverStoneManagingAgencyLimitedMember
3132 Hamblin Watsa Investment Counsel Ltd. (Hamblin Watsa) Member ffh:HamblinWatsaInvestmentCounselLtd.Member
3133 Recipe Unlimited Corporation Member ffh:RecipeUnlimitedCorporationMember
3134 Keg Restaurants Ltd. (The Keg) Member ffh:KegRestaurantsLtd.Member
3135 Groupe St-Hubert Inc. (St-Hubert) Member ffh:GroupStHubertInc.Member
3136 Original Joe's Franchise Group Inc. (Original Joe's) Member ffh:OriginalJoesFranchiseGroupInc.Member
3137 Pickle Barrel Holdings Limited (Pickle Barrel) Member ffh:PickleBarrelRestaurantsIncMember
3138 Praktiker Hellas Commercial Societe Anonyme (Praktiker) Member ffh:PraktikerHellasCommercialSocieteAnonymeMember
3139 Toys R Us (Canada) Ltd. (Toys R Us Canada) Member ffh:ToysRUsCanadaLtd.Member
3140 Sporting Life Group Limited Member ffh:SportingLifeGroupLimitedMember
3141 Sporting Life Inc. (Sporting Life) Member ffh:SportingLifeInc.Member
3142 Golf Town Limited (Golf Town) Member ffh:GolfTownLimitedMember
3143 William Ashley China Corporation (William Ashley) Member ffh:WilliamAshleyChinaCorporationMember
3144 Fairfax India Member ffh:FairfaxIndiaHoldingsCorporationMember
3145 National Collateral Management Services Limited (NCML) Member ffh:NationalCollateralManagementServicesLimitedMember
3146 Fairchem Speciality Limited (Fairchem) Member ffh:FairchemSpecialityLimitedMember
3147 Saurashtra Freight Private Limited (Saurashtra Freight) Member ffh:SaurashtraFreightPrivateLimitedMember
3148 Thomas Cook India Member ffh:ThomasCookIndiaLimitedMember
3149 Sterling Holiday Resorts Limited (Sterling Resorts) Member ffh:SterlingHolidayResortsIndiaLimitedMember
3150 Fairfax Africa Holdings Corporation (Fairfax Africa) Member ffh:FairfaxAfricaHoldingsCorporationMember
3151 Grivalia Properties Real Estate Investment Company S.A. (Grivalia Properties) Member ffh:GrivaliaPropertiesRealEstateInvestmentCompanyS.A.Member
3152 Mosaic Capital Member ffh:MosaicCapitalMember
3153 Dexterra Integrated Facilities Management (Dexterra) Member ffh:DexterraIntegratedFacilitiesManagementMember
3154 Pethealth Inc. (Pethealth) Member ffh:PethealthInc.Member
3155 Boat Rocker Media Inc. (Boat Rocker) Member ffh:BoatRockerMediaInc.Member
3156 Disclosure of subsidiaries [line items] LineItems ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesLineItems
3157 Proportion of ownership interest in subsidiary Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInSubsidiary
3158 Proportion of voting rights held in associate Concept (Percent) For Period ifrs-full:ProportionOfVotingPowerHeldInSubsidiary

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