FORTUNA SILVER MINES INC (SEC Filing Page | XBRL Cloud Viewer | XBRL Instance)

Line Label Object Class Period Type Balance Report ElementName
1 00090 - Document - Document And Entity Information Network

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3 Document And Entity Information [abstract] Abstract fsm:DocumentAndEntityInformationAbstract
4 Entity Registrant Name Concept (Text/String) For Period dei:EntityRegistrantName
5 Entity Central Index Key Concept (CIK Number) For Period dei:EntityCentralIndexKey
6 Document Type Concept (Submission Type) For Period dei:DocumentType
7 Amendment Flag Concept (Yes/No) For Period dei:AmendmentFlag
8 Document Period End Date Concept (Date) For Period dei:DocumentPeriodEndDate
9 Document Fiscal Period Focus Concept (Fiscal Period) For Period dei:DocumentFiscalPeriodFocus
10 Document Fiscal Year Focus Concept (Year) For Period dei:DocumentFiscalYearFocus
11 Current Fiscal Year End Date Concept (Month/Day) For Period dei:CurrentFiscalYearEndDate
12 Entity Current Reporting Status Concept (Yes/No) For Period dei:EntityCurrentReportingStatus
13 Entity Common Stock, Shares Outstanding Concept (Shares) As Of dei:EntityCommonStockSharesOutstanding
14 00100 - Statement - Consolidated Income Statements Network

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15 Implied Table Table

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16 Consolidated Income Statements [abstract] Abstract ifrs-full:IncomeStatementAbstract
17 Sales (note 24) Concept (Monetary) For Period Credit ifrs-full:Revenue
18 Cost of sales (note 25) Concept (Monetary) For Period Debit ifrs-full:CostOfSales
19 Mine operating income Concept (Monetary) For Period Credit ifrs-full:GrossProfit
20 Other expenses (income) Abstract fsm:OtherIncomeAndExpenseAbstract
21 Selling, general and administration (note 26) Concept (Monetary) For Period Debit ifrs-full:SellingGeneralAndAdministrativeExpense
22 Exploration and evaluation Concept (Monetary) For Period Debit ifrs-full:ExpenseArisingFromExplorationForAndEvaluationOfMineralResources
23 Share of loss of equity-accounted investee (note 11) Concept (Monetary) For Period Credit ifrs-full:ShareOfProfitLossOfContinuingOperationsOfAssociatesAndJointVenturesAccountedForUsingEquityMethod
24 Foreign exchange loss Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss
25 Impairment reversal (note 10) Concept (Monetary) For Period Credit ifrs-full:ReversalOfImpairmentLoss
26 Other expenses (note 27) Concept (Monetary) For Period Debit ifrs-full:OtherExpenseByNature
27 Operating expenses (income), total Concept (Monetary) For Period Credit ifrs-full:OtherOperatingIncomeExpense
28 Operating Income Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromOperatingActivities
29 Other income (loss) Abstract fsm:OtherNonOperatingIncomeLossAbstract
30 Interest and finance costs, net (note 28) Concept (Monetary) For Period Credit fsm:InterestAndFinanceExpenseNet
31 Gain (loss) on financial assets and liabilities carried at fair value Concept (Monetary) For Period Credit fsm:GainsLossesOnFinancialAssetsAndLiabilitiesAtFairValueThroughProfitOrLoss
32 Financial income (expense), total Concept (Monetary) For Period Credit fsm:FinancialIncomeExpenseTotal
33 Financing items Abstract fsm:FinancingItemsAbstract
34 Interest income Concept (Monetary) For Period Credit ifrs-full:RevenueFromInterest
35 Interest expense Concept (Monetary) For Period Debit ifrs-full:InterestExpense
36 Income before Taxes Concept (Monetary) For Period Credit ifrs-full:ProfitLossBeforeTax
37 Income tax (note 29) Abstract ifrs-full:CurrentAndDeferredTaxRelatingToItemsChargedOrCreditedDirectlyToEquityAbstract
38 Current income tax expense Concept (Monetary) For Period Debit ifrs-full:CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriods
39 Deferred income tax expense Concept (Monetary) For Period Debit ifrs-full:DeferredTaxExpenseIncome
40 Total tax expense Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
41 Net income for the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
42 Earning Per Share (note 23) Abstract fsm:EarningPerShareForBasicAndDilutedAbstract
43 Basic Concept (Share) For Period ifrs-full:BasicEarningsLossPerShare
44 Diluted Concept (Share) For Period ifrs-full:DilutedEarningsLossPerShare
45 Weighted average number of common shares outstanding during the period (000's) Abstract ifrs-full:WeightedAverageSharesAndAdjustedWeightedAverageSharesAbstract
46 Basic Concept (Shares) For Period ifrs-full:WeightedAverageShares
47 Diluted Concept (Shares) For Period ifrs-full:AdjustedWeightedAverageShares
48 00200 - Statement - Consolidated Statements of Comprehensive Income Network

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49 Implied Table Table

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50 Consolidated Statements of Comprehensive Income [abstract] Abstract ifrs-full:StatementOfComprehensiveIncomeAbstract
51 Net income for the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
52 Items that will remain permanently in other comprehensive income: Abstract ifrs-full:ComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTaxAbstract
53 Change in fair value of marketable securities, net of $nil tax Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeNetOfTaxAvailableforsaleFinancialAssets
54 Items that may in the future be reclassified to profit or loss: Abstract ifrs-full:ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract
55 Change in fair value of hedging instruments, net of $nil tax Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeNetOfTaxCashFlowHedges
56 Total other comprehensive income for the year Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncome
57 Comprehensive income for the year Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncome
58 00300 - Statement - Consolidated Statements of Financial Position Network

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59 Implied Table Table

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60 Consolidated Statements of Financial Position [abstract] Abstract ifrs-full:StatementOfFinancialPositionAbstract
61 ASSETS: Abstract ifrs-full:AssetsAbstract
62 CURRENT ASSETS: Abstract ifrs-full:CurrentAssetsAbstract
63 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
64 Short term investments Concept (Monetary) As Of Debit ifrs-full:CurrentInvestments
65 Accounts and other receivables (note 5) Concept (Monetary) As Of Debit ifrs-full:TradeAndOtherCurrentReceivables
66 Inventories (note 6) Concept (Monetary) As Of Debit ifrs-full:Inventories
67 Derivative assets (note 7) Concept (Monetary) As Of Debit ifrs-full:DerivativeFinancialAssets
68 Marketable securities Concept (Monetary) As Of Debit ifrs-full:CurrentFinancialAssetsAvailableforsale
69 Income tax receivable Concept (Monetary) As Of Debit ifrs-full:CurrentTaxAssetsCurrent
70 Prepaid expenses Concept (Monetary) As Of Debit ifrs-full:CurrentPrepaidExpenses
71 Assets held for sale (note 12) Concept (Monetary) As Of Debit ifrs-full:OtherCurrentAssets
72 Total current assets Concept (Monetary) As Of Debit ifrs-full:CurrentAssets
73 NON-CURRENT ASSETS: Abstract ifrs-full:NoncurrentAssetsAbstract
74 Mineral properties and exploration and evaluation assets (note 8) Concept (Monetary) As Of Debit fsm:PropertiesAndExplorationAndEvaluationAssetsNoncurrent
75 Plant and equipment (note 9) Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
76 Investment in associates (note 11) Concept (Monetary) As Of Debit ifrs-full:InvestmentsInAssociates
77 Long-term receivables (note 13) Concept (Monetary) As Of Debit ifrs-full:OtherNoncurrentReceivables
78 Deposits and advances to contractors (note 14) Concept (Monetary) As Of Debit ifrs-full:LongtermDeposits
79 Total assets Concept (Monetary) As Of Debit ifrs-full:Assets
80 LIABILITIES: Abstract ifrs-full:LiabilitiesAbstract
81 CURRENT LIABILITIES: Abstract ifrs-full:CurrentLiabilitiesAbstract
82 Trade and other payables (note 15) Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherCurrentPayables
83 Current portion of closure and rehabilitation provisions (note 20) Concept (Monetary) As Of Credit fsm:CurrentProvisionForAssetRetirementObligation
84 Income taxes payable Concept (Monetary) As Of Credit ifrs-full:CurrentTaxLiabilitiesCurrent
85 Current portion of loan and lease obligations (note 18) Concept (Monetary) As Of Credit ifrs-full:CurrentFinanceLeaseLiabilities
86 Derivative liabilities (note 7) Concept (Monetary) As Of Credit ifrs-full:CurrentDerivativeFinancialLiabilities
87 Total current liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentLiabilities
88 NON-CURRENT LIABILITIES: Abstract ifrs-full:NoncurrentLiabilitiesAbstract
89 Credit facility (note 17) Concept (Monetary) As Of Credit ifrs-full:NoncurrentPortionOfNoncurrentSecuredBankLoansReceived
90 Other liabilities (note 19) Concept (Monetary) As Of Credit ifrs-full:OtherNoncurrentLiabilities
91 Closure and rehabilitation provisions (note 20) Concept (Monetary) As Of Credit fsm:NoncurrentProvisionForAssetRetirementObligation
92 Deferred tax liabilities (note 29) Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilityAsset
93 Lease obligations (note 18) Concept (Monetary) As Of Credit ifrs-full:NoncurrentFinanceLeaseLiabilities
94 Total liabilities Concept (Monetary) As Of Credit ifrs-full:Liabilities
95 EQUITY: Abstract ifrs-full:EquityAbstract
96 Share capital (note 22) Concept (Monetary) As Of Credit ifrs-full:IssuedCapital
97 Reserves Concept (Monetary) As Of Credit ifrs-full:OtherReserves
98 Retained earnings Concept (Monetary) As Of Credit ifrs-full:RetainedEarnings
99 Total equity Concept (Monetary) As Of Credit ifrs-full:Equity
100 Total liabilities and equity Concept (Monetary) As Of Credit ifrs-full:EquityAndLiabilities
101 00400 - Statement - Consolidated Statements of Cashflows Network

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102 Implied Table Table

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103 Statement of cash flows [abstract] Abstract ifrs-full:StatementOfCashFlowsAbstract
104 OPERATING ACTIVITIES Abstract ifrs-full:CashFlowsFromUsedInOperatingActivitiesAbstract
105 Net income for the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
106 Items not involving cash Abstract ifrs-full:AdjustmentsForReconcileProfitLossAbstract
107 Depletion and depreciation Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDepreciationAndAmortisationExpense
108 Accretion of provisions Concept (Monetary) For Period Debit fsm:AccretionOfProvisionRelatedToOperatingActivities
109 Income taxes Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForIncomeTaxExpense
110 Share based payments expense, net of cash settlements Concept (Monetary) For Period Debit fsm:AdjustmentsForSharebasedPaymentsExpenseAndRecoveryNetOfCashSettlements
111 Share of loss of equity-accounted investee (note 11) Concept (Monetary) For Period Credit ifrs-full:ShareOfProfitLossOfContinuingOperationsOfAssociatesAndJointVenturesAccountedForUsingEquityMethod
112 Impairment reversal of mineral properties, plant and equipment (note 10) Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss
113 Loss on disposal of mineral properties, plant and equipment Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForLossesGainsOnDisposalOfNoncurrentAssets
114 Loss on debt modification (note 17) Concept (Monetary) For Period Debit fsm:AdjustmentsForLossesGainsOnDebtInstruments
115 Unrealized foreign exchange loss Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForUnrealisedForeignExchangeLossesGains
116 Foreign exchange loss-Lindero Project Concept (Monetary) For Period Debit fsm:AdjustmentsForRealisedAndUnrealisedForeignExchangeLossesGains
117 Unrealized (gain) loss on financial assets carried at fair value Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForFairValueGainsLosses
118 Write-downs and other Concept (Monetary) For Period Debit ifrs-full:OtherAdjustmentsToReconcileProfitLoss
119 Total adjustments to reconcile profit (loss) Concept (Monetary) For Period Debit fsm:AdjustmentsToReconcileNoncashItemsAndProfitLoss
120 Accounts and other receivables Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDecreaseIncreaseInTradeAccountReceivable
121 Prepaid expenses Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDecreaseIncreaseInOtherAssets
122 Inventories Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDecreaseIncreaseInInventories
123 Trade and other payables Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables
124 Rehabilitation payments Concept (Monetary) For Period Credit fsm:PaymentOnClosureAndRehabilitationProvisions
125 Cash provided by operating activities Concept (Monetary) For Period ifrs-full:CashFlowsFromUsedInOperations
126 Income taxes paid Concept (Monetary) For Period Credit ifrs-full:IncomeTaxesPaidClassifiedAsOperatingActivities
127 Interest paid Concept (Monetary) For Period Credit ifrs-full:InterestPaidClassifiedAsOperatingActivities
128 Interest received Concept (Monetary) For Period Debit ifrs-full:InterestReceivedClassifiedAsOperatingActivities
129 Net cash provided by operating activities Concept (Monetary) For Period ifrs-full:CashFlowsFromUsedInOperatingActivities
130 INVESTING ACTIVITIES Abstract ifrs-full:CashFlowsFromUsedInInvestingActivitiesAbstract
131 Purchases of short term investments Concept (Monetary) For Period Credit ifrs-full:PurchaseOfFinancialInstrumentsClassifiedAsInvestingActivities
132 Redemptions of short term investments Concept (Monetary) For Period Debit ifrs-full:ProceedsFromSalesOrMaturityOfFinancialInstrumentsClassifiedAsInvestingActivities
133 Investments in marketable securities Concept (Monetary) For Period Credit ifrs-full:PurchaseOfAvailableforsaleFinancialAssets
134 Investments in associates Concept (Monetary) For Period Credit ifrs-full:PurchaseOfOtherLongtermAssetsClassifiedAsInvestingActivities
135 Additions to mineral properties, plant and equipment Concept (Monetary) For Period Credit ifrs-full:PurchaseOfMiningAssets
136 Expenditures on Lindero Project Concept (Monetary) For Period Credit fsm:CashPaymentsForConstructionProject
137 Deposits and advances to contractors Concept (Monetary) For Period Credit fsm:CashAdvancesAndLoansMadeToRepaymentsOfByOtherPartiesClassifiedAsInvestingActivities
138 Proceeds from sale of assets Concept (Monetary) For Period Debit ifrs-full:ProceedsFromOtherLongtermAssetsClassifiedAsInvestingActivities
139 Additions to long-term receivables Concept (Monetary) For Period Debit ifrs-full:OtherInflowsOutflowsOfCashClassifiedAsInvestingActivities
140 Cash used in investing activities Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInInvestingActivities
141 FINANCING ACTIVITIES Abstract ifrs-full:CashFlowsFromUsedInFinancingActivitiesAbstract
142 Transaction costs on debt modification (note 17) Concept (Monetary) For Period Credit fsm:PaymentsForDebtModificationsCosts
143 Proceeds from credit facility (note 17) Concept (Monetary) For Period Debit ifrs-full:ProceedsFromBorrowingsClassifiedAsFinancingActivities
144 Proceeds from issuance of common shares Concept (Monetary) For Period Debit ifrs-full:ProceedsFromIssueOfOrdinaryShares
145 Share issuance costs Concept (Monetary) For Period Credit ifrs-full:PaymentsForShareIssueCosts
146 Repayments of finance lease obligations Concept (Monetary) For Period Credit ifrs-full:PaymentsOfFinanceLeaseLiabilitiesClassifiedAsFinancingActivities
147 Cash provided by financing activities Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInFinancingActivities
148 Effect of exchange rate changes on cash and cash equivalents Concept (Monetary) For Period Debit ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalents
149 Increase (decrease) in cash and cash equivalents during the year Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseInCashAndCashEquivalents
150 Cash and cash equivalents, beginning of the year Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
151 Cash and cash equivalents, end of the year Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
152 00405 - Statement - Consolidated Statements of Cashflows - Cash and Cash Equivalents Network

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153 Implied Table Table

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154 Statement of cash flows [abstract] Abstract ifrs-full:StatementOfCashFlowsAbstract
155 Cash and cash equivalents consist of: Abstract ifrs-full:CashAndCashEquivalentsAbstract
156 Cash Concept (Monetary) As Of Debit ifrs-full:Cash
157 Cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashEquivalents
158 Cash and cash equivalents, end of the year Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
159 00500 - Statement - Consolidated Statements of Changes in Equity Network

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160 Statement of changes in equity [table] Table

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161 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
162 Equity [member] Member ifrs-full:EquityMember
163 Equity attributable to owners of parent [member] Member ifrs-full:EquityAttributableToOwnersOfParentMember
164 Issued capital [member] Member ifrs-full:IssuedCapitalMember
165 Other reserves [member] Member ifrs-full:OtherReservesMember
166 Equity reserve [member] Member ifrs-full:RevaluationSurplusMember
167 Hedging reserve [member] Member ifrs-full:ReserveOfCashFlowHedgesMember
168 Fair value reserve [member] Member ifrs-full:ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssetsMember
169 Foreign currency reserves [member] Member ifrs-full:ReserveOfChangeInValueOfForeignCurrencyBasisSpreadsMember
170 Retained earnings [member] Member ifrs-full:RetainedEarningsMember
171 Statement of changes in equity [line items] LineItems ifrs-full:StatementOfChangesInEquityLineItems
172 Equity at beginning of period Concept (Monetary) As Of Credit ifrs-full:Equity
173 Equity at beginning of period, shares Concept (Shares) As Of ifrs-full:NumberOfSharesIssued
174 Net income for the period Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
175 Other comprehensive income Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncome
176 Comprehensive income for the year Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncome
177 Issuance of common shares Concept (Monetary) For Period Credit ifrs-full:IssueOfEquity
178 Issuance of common shares, shares Concept (Shares) For Period fsm:SharesOfEntityStockIssuedDuringPeriod
179 Issuance of shares for mineral property Concept (Monetary) For Period Credit fsm:ValueOfSharesIssuedRelatedToPropertyAcquisition
180 Issuance of shares for mineral property, shares Concept (Decimal) For Period fsm:SharesIssuedRelatedToPropertyAcquisition
181 Exercise of warrants (note 22c) Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughExerciseOfWarrantsEquity
182 Exercise of warrants, shares (note 22c) Concept (Decimal) For Period fsm:IncreaseDecreaseThroughExerciseOfWarrantsEquityShares
183 Exercise of stock options Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughExerciseOfOptions
184 Exercise of stock options, shares Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsExercisedInSharebasedPaymentArrangement
185 Shares issued for share units Concept (Monetary) For Period Credit ifrs-full:IssueOfConvertibleInstruments
186 Shares issued for share units (in shares) Concept (Decimal) For Period fsm:NumberOfSharesIssuedForConversion
187 Share-based payments (note 21) Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions
188 Subtotal of transactions with owners of the Company Concept (Monetary) For Period Credit fsm:TransactionWithOwnersRelatedToEquity
189 Subtotal of transactions with owners of the Company, shares Concept (Shares) For Period fsm:TransactionWithOwnersRelatedToEquityShares
190 Equity at end of period Concept (Monetary) As Of Credit ifrs-full:Equity
191 Equity at end of period, shares Concept (Shares) As Of ifrs-full:NumberOfSharesIssued
192 10101 - Disclosure - Reporting Entity Network

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193 Implied Table Table

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194 Reporting Entity [abstract] Abstract fsm:NatureOfOperationsAbstract
195 Reporting Entity Concept (Text Block (HTML)) For Period fsm:NatureOfOperationsTextBlock
196 10201 - Disclosure - Basis of Presentation Network

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197 Implied Table Table

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199 Basis of Presentation Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfBasisOfConsolidationExplanatory
200 10301 - Disclosure - Significant Accounting Policies Network

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201 Implied Table Table

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202 Significant Accounting Policies [abstract] Abstract fsm:SignificantAccountingPoliciesAbstract
203 Significant Accounting Policies Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfSummaryOfSignificantAccountingPoliciesExplanatory
204 10401 - Disclosure - Use of Judgements and Estimates Network

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207 Use of Judgements and Estimates Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfAccountingJudgementsAndEstimatesExplanatory
208 10501 - Disclosure - Accounts and Other Receivables Network

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209 Implied Table Table

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211 Accounts and Other Receivables Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfTradeAndOtherReceivablesExplanatory
212 10601 - Disclosure - Inventories Network

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213 Implied Table Table

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215 Inventories Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfInventoriesExplanatory
216 10701 - Disclosure - Derivative Assets and Derivative Liabilities Network

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217 Implied Table Table

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219 Derivative Assets and Derivative Liabilities Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDerivativeFinancialInstrumentsExplanatory
220 10801 - Disclosure - Mineral Properties and Exploration and Evaluation Assets Network

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221 Disclosure of detailed information about property, plant and equipment [table] Table

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222 Classes of assets [axis] Axis ifrs-full:ClassesOfAssetsAxis
223 Assets [member] Member ifrs-full:ClassesOfAssetsMember
224 Mineral Properties and Exploration and Evaluation Assets [member] Member fsm:MineralPropertiesAndExplorationAndEvaluationAssetsMember
225 Disclosure of detailed information about property, plant and equipment [line items] LineItems ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems
226 Plant and Equipment Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfPropertyPlantAndEquipmentExplanatory
227 10901 - Disclosure - Plant and Equipment Network

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228 Implied Table Table

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230 Plant and Equipment Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfPropertyPlantAndEquipmentExplanatory
231 11001 - Disclosure - Impairment Reversal Network

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232 Implied Table Table

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234 Impairment Reversal Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfInformationForEachMaterialImpairmentLossRecognisedOrReversedForIndividualAssetOrCashgeneratingUnitExplanatory
235 11101 - Disclosure - Investments in Associate Network

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236 Implied Table Table

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238 Investments in Associate Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfInterestsInAssociatesExplanatory
239 11201 - Disclosure - Assets Held for Sale Network

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240 Implied Table Table

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242 Assets Held for Sale Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleExplanatory
243 11301 - Disclosure - Long-term Receivables Network

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244 Implied Table Table

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245 Other non-current receivables [abstract] Abstract ifrs-full:NoncurrentReceivablesAbstract
246 Long-term Receivables Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOtherNoncurrentAssetsExplanatory
247 11401 - Disclosure - Deposits and Advances to Contractors Network

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248 Implied Table Table

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250 Deposits and Advances to Contractors Concept (Text Block (HTML)) For Period fsm:DisclosureOfLoansAndAdvancesToContractorsTextBlock
251 11501 - Disclosure - Trade and Other Payables Network

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254 Trade and Other Payables Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfTradeAndOtherPayablesExplanatory
255 11601 - Disclosure - Related Party Transactions Network

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259 11701 - Disclosure - Credit Facility Network

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262 Credit Facility Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsExplanatory
263 11801 - Disclosure - Finance Lease Obligations Network

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264 Implied Table Table

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266 Finance Lease Obligations Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfLeasesExplanatory
267 11901 - Disclosure - Other Liabilities Network

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268 Implied Table Table

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269 Other Liabilities [abstract] Abstract fsm:DisclosureOfOtherLiabilitiesAbstract
270 Other Liabilities Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOtherLiabilitiesExplanatory
271 12001 - Disclosure - Closure and Rehabilitation Provisions Network

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272 Implied Table Table

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273 Closure and Rehabilitation Provisions [abstract] Abstract ifrs-full:DisclosureOfOtherProvisionsAbstract
274 Closure and Rehabilitation Provisions Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOtherProvisionsContingentLiabilitiesAndContingentAssetsExplanatory
275 12101 - Disclosure - Share Based Payments Network

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276 Implied Table Table

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277 Share Based Payments [abstract] Abstract fsm:DisclosureOfShareBasedPaymentArrangementsAbstract
278 Share Based Payments Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfSharebasedPaymentArrangementsExplanatory
279 12201 - Disclosure - Share Capital Network

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280 Implied Table Table

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281 Share Capital [abstract] Abstract ifrs-full:DisclosureOfClassesOfShareCapitalAbstract
282 Share Capital Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory
283 12301 - Disclosure - Earnings per Share Network

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284 Implied Table Table

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285 Earnings per Share [abstract] Abstract ifrs-full:EarningsPerShareAbstract
286 Earnings per Share Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfEarningsPerShareExplanatory
287 12401 - Disclosure - Sales Network

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288 Implied Table Table

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289 Sales [abstract] Abstract ifrs-full:RevenueAbstract
290 Sales Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfRevenueExplanatory
291 12501 - Disclosure - Cost of Sales Network

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292 Implied Table Table

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293 Cost of Sales [abstract] Abstract fsm:DisclosureOfCostOfSalesAbstract
294 Cost of Sales Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfCostOfSalesExplanatory
295 12601 - Disclosure - Selling General and Administrative Network

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296 Implied Table Table

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297 Selling, General and Administrative [abstract] Abstract fsm:SellingGeneralAndAdministrativeAbstract
298 Selling General and Administrative Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfGeneralAndAdministrativeExpenseExplanatory
299 12701 - Disclosure - Other Expenses Network

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300 Implied Table Table

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301 Other Expense [abstract] Abstract fsm:OtherExpenseAbstract
302 Other Expenses Concept (Text Block (HTML)) For Period fsm:DisclosureOfOtherExpenseTextBlock
303 12801 - Disclosure - Interest and Finance Cost, Net Network

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304 Implied Table Table

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305 Interest and Finance Cost, Net Abstract fsm:InterestAndFinanceCostNetAbstract
306 Interest and Finance Cost, Net Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFinanceIncomeExpenseExplanatory
307 12901 - Disclosure - Income Taxes Network

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308 Implied Table Table

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309 Income Taxes [abstract] Abstract fsm:IncomeTaxesAbstract
310 Income Taxes Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfIncomeTaxExplanatory
311 13001 - Disclosure - Segment Information Network

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312 Implied Table Table

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313 Segment Information [abstract] Abstract ifrs-full:DisclosureOfOperatingSegmentsAbstract
314 Segment Information Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfEntitysReportableSegmentsExplanatory
315 13101 - Disclosure - Fair Value Measurements Network

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316 Implied Table Table

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317 Fair Value Measurements [abstract] Abstract fsm:DisclosureOfFairValueMeasurementOfAssetsAndLiabilitiesAbstract
318 Fair Value Measurements Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFairValueMeasurementExplanatory
319 13201 - Disclosure - Management of Financial Risk Network

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320 Implied Table Table

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322 Management of Financial Risk Concept (Text Block (HTML)) For Period fsm:DisclosureOfManagementOfFinancialRiskTextBlock
323 13301 - Disclosure - Supplemental Cashflow Information Network

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324 Implied Table Table

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325 Supplemental Cashflow Information [abstract] Abstract ifrs-full:DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesAbstract
326 Supplemental Cashflow Information Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfInformationThatEnablesUsersOfFinancialStatementsToEvaluateChangesInLiabilitiesArisingFromFinancingActivitiesExplanatory
327 13401 - Disclosure - Contingencies and Capital Commitments Network

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328 Implied Table Table

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330 Contingencies and Capital Commitments Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfCommitmentsAndContingentLiabilitiesExplanatory
331 20302 - Disclosure - Significant Accounting Policies (Policies) Network

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332 Implied Table Table

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333 Significant Accounting Policies [abstract] Abstract fsm:SignificantAccountingPoliciesAbstract
334 Basis of Consolidation Concept (Text Block (HTML)) For Period fsm:DescriptionOfAccountingPolicyForBasisOfConsolidationExplanatoryTextBlock
335 Foreign Currency Translation Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory
336 Cash, Cash Equivalents and Short Term Investments Concept (Text Block (HTML)) For Period fsm:DescriptionOfAccountingPolicyForCashCashEquivalentsAndShortTermInvestmentsExplanatoryTextBlock
337 Inventories Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForMeasuringInventories
338 Investment in Associates Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForInvestmentInAssociates
339 Exploration and Evaluation Assets Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForExplorationAndEvaluationExpenditures
340 Mineral Properties, Plant and Equipment Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForMiningAssetsExplanatory
341 Asset Impairment Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForImpairmentOfAssetsExplanatory
342 Borrowing Costs Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForFinanceCostsExplanatory
343 Assets Held for Sale Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleExplanatory
344 Leases Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForLeasesExplanatory
345 Income Taxes Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForIncomeTaxExplanatory
346 Provisions Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForProvisionsExplanatory
347 Share Capital Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForIssuedCapitalExplanatory
348 Share-Based Payments Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory
349 Related Party Transactions Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForTransactionsWithRelatedPartiesExplanatory
350 Earnings per Share Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForEarningsPerShareExplanatory
351 Segment Reporting Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForSegmentReportingExplanatory
352 Significant Accounting Estimates and Judgements Concept (Text Block (HTML)) For Period fsm:DescriptionOfAccountingPolicyForSignificantAccountingEstimatesAndJudgementsExplanatoryTextBlock
353 Adoption of New Accounting Standards and those issued but not yet effective Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfOtherAccountingPoliciesRelevantToUnderstandingOfFinancialStatements
354 Comparative figures Concept (Text Block (HTML)) For Period fsm:DescriptionOfAccountingPolicyForComparativeFiguresTextBlock
355 20402 - Disclosure - Use of Judgements and Estimates (Policies) Network

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356 Implied Table Table

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358 Critical Accounting Estimates and Assumptions Concept (Text Block (HTML)) For Period fsm:CriticalAccountingEstimatesAndAssumptionsExplanatoryTextBlock
359 Critical Accounting Judgements in Applying the Entity's Accounting Policies Concept (Text Block (HTML)) For Period fsm:CriticalAccountingJudgementsRelatedToAccountingPoliciesTextBlock
360 30303 - Disclosure - Significant Accounting Policies (Tables) Network

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361 Implied Table Table

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362 Significant Accounting Policies [abstract] Abstract fsm:SignificantAccountingPoliciesAbstract
363 Disclosure of subsidiaries Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesExplanatory
364 Schedule of useful life of property, plant and equipment Concept (Text Block (HTML)) For Period fsm:DisclosureOfUsefulLifeOfPropertyPlantAndEquipmentTextBlock
365 Summary of measurement categories under IAS 39 and measurement categories under IFRS 9 Concept (Text Block (HTML)) For Period fsm:DisclosureOfMeasurementCategoriesOfFinancialInstrumentsTextBlock
366 30503 - Disclosure - Accounts and Other Receivables (Tables) Network

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367 Implied Table Table

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369 Schedule of Trade and Other Receivables Concept (Text Block (HTML)) For Period fsm:DisclosureOfScheduleOfTradeAndOtherReceivables
370 30603 - Disclosure - Inventories (Tables) Network

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371 Implied Table Table

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372 Inventories [abstract] Abstract fsm:InventoriesAbstract
373 Schedule of Inventories Concept (Text Block (HTML)) For Period fsm:DisclosureOfDetailedRelatedToInventoriesExplanatoryTextBlock
374 30703 - Disclosure - Derivative Assets and Derivative Liabilities (Tables) Network

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375 Implied Table Table

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377 Schedule of Derivative Assets and Liabilities Concept (Text Block (HTML)) For Period fsm:DisclosureOfDerivativeAssetsAndDerivativeLiabilitiesTextBlock
378 Schedule of Derivative Gain (Loss) Settled and Open Positions Concept (Text Block (HTML)) For Period fsm:DisclosureOfDerivativesGainLossSettledAndOpenPositionsTextBlock
379 30803 - Disclosure - Mineral Properties and Exploration and Evaluation Assets (Tables) Network

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380 Disclosure of detailed information about property, plant and equipment [table] Table

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381 Classes of assets [axis] Axis ifrs-full:ClassesOfAssetsAxis
382 Assets [member] Member ifrs-full:ClassesOfAssetsMember
383 Mineral Properties and Exploration and Evaluation Assets [member] Member fsm:MineralPropertiesAndExplorationAndEvaluationAssetsMember
384 Disclosure of detailed information about property, plant and equipment [line items] LineItems ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems
385 Schedule Related to Property, Plant and Equipment Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory
386 30903 - Disclosure - Plant and Equipment (Tables) Network

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387 Implied Table Table

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388 Plant and Equipment [abstract] Abstract ifrs-full:DisclosureOfPropertyPlantAndEquipmentAbstract
389 Schedule Related to Property, Plant and Equipment Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory
390 31003 - Disclosure - Impairment Reversal (Table) Network

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391 Implied Table Table

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392 Impairment Reversal [abstract] Abstract ifrs-full:DisclosureOfInformationForEachMaterialImpairmentLossRecognisedOrReversedForIndividualAssetOrCashgeneratingUnitAbstract
393 Schedule of Metal Prices Assumptions Used for Impairment Determination Concept (Text Block (HTML)) For Period fsm:DisclosureOfKeyAssumptionPricesForDeterminingImpairmentExplanatoryTextBlock
394 31103 - Disclosure - Investments in Associate (Tables) Network

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395 Implied Table Table

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396 Investments in Associate [abstract] Abstract ifrs-full:DisclosureOfSignificantInvestmentsInAssociatesAbstract
397 Disclosure of Associates Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfSignificantInvestmentsInAssociatesExplanatory
398 31203 - Disclosure - Assets Held for Sale (Tables) Network

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399 Implied Table Table

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401 Assets held for sale Concept (Text Block (HTML)) For Period fsm:DisclosureOfOtherCurrentAssetsClassifiedAsAvailableForSaleTextBlock
402 31503 - Disclosure - Trade and Other Payables (Tables) Network

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403 Implied Table Table

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404 Trade and Other Payables [abstract] Abstract ifrs-full:TradeAndOtherPayablesAbstract
405 Schedule of Trade and Other Payables Concept (Text Block (HTML)) For Period fsm:DetailedInformationAboutTradeAndOtherPayablesExplanatory
406 31603 - Disclosure - Related Party Transactions (Tables) Network

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407 Implied Table Table

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408 Related Party Transactions [abstract] Abstract ifrs-full:RelatedPartyTransactionsAbstract
409 Schedule of Related Party Transactions Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesExplanatory
410 Schedule of remuneration of key management personnel Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfAmountsIncurredByEntityForProvisionOfKeyManagementPersonnelServicesProvidedBySeparateManagementEntitiesExplanatory
411 31703 - Disclosure - Credit Facility (Tables) Network

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412 Implied Table Table

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413 Bank Loan [abstract] Abstract ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsAbstract
414 Summary of Amendments to Credit Facility Concept (Text Block (HTML)) For Period fsm:DisclosureOfDetailedInformationAboutBorrowingsAccountedForAsModificationUnderIfrs9TextBlock
415 31803 - Disclosure - Finance Lease Obligations (Tables) Network

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416 Implied Table Table

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417 Finance Lease Obligations [abstract] Abstract ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeAbstract
418 Schedule of Operating Lease Payments Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeExplanatory
419 31903 - Disclosure - Other Liabilities (Tables) Network

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420 Implied Table Table

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421 Other Liabilities [abstract] Abstract fsm:DisclosureOfOtherLiabilitiesAbstract
422 Summary of other liabilities Concept (Text Block (HTML)) For Period fsm:DisclosureOfOtherLiabilitiesTextBlock
423 32003 - Disclosure - Closure and Rehabilitation Provisions (Tables) Network

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424 Implied Table Table

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425 Closure and Rehabilitation Provisions [abstract] Abstract ifrs-full:DisclosureOfOtherProvisionsAbstract
426 Schedule of Closure and Rehabilitation Provisions Concept (Text Block (HTML)) For Period fsm:DisclosureOfClosureAndRehabilitationProvisions
427 Schedule of Estimates Used in Closure and Rehabilitation Provisions Concept (Text Block (HTML)) For Period fsm:DisclosureOfOtherItemsRelatedToClosureAndRehabilitationProvisions
428 32103 - Disclosure - Share Based Payments (Tables) Network

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429 Disclosure of terms and conditions of share-based payment arrangement [table] Table

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433 Restricted Share Units [member] Member fsm:RestrictedShareUnitsMember
434 Performance Share Units [member] Member fsm:PerformanceShareUnitsMember
435 Disclosure of terms and conditions of share-based payment arrangement [line items] LineItems ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems
436 Schedule of Outstanding and Fair Value of Other Units Activity Concept (Text Block (HTML)) For Period fsm:DisclosureOfNumberAndFairValueOfOtherEquityInstrumentsExplanatoryTextBlock
437 32203 - Disclosure - Share Capital (Table) Network

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438 Disclosure of classes of share capital [table] Table

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442 Warrants Class of Share Capital [member] Member fsm:WarrantsClassOfShareCapitalMember
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444 Schedule of Share Capital Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfClassesOfShareCapitalExplanatory
445 32303 - Disclosure - Earnings per Share (Tables) Network

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446 Implied Table Table

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447 Earnings per Share [abstract] Abstract ifrs-full:EarningsPerShareAbstract
448 Schedule of Earnings per Share Concept (Text Block (HTML)) For Period fsm:DisclosureOfEarningsPerShareOfBasicAndDiulted
449 32403 - Disclosure - Sales (Tables) Network

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450 Implied Table Table

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451 Sales [abstract] Abstract ifrs-full:RevenueAbstract
452 Schedule of Sales by Product and Geographical Area Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfGeographicalAreasExplanatory
453 Schedule of Sales by Major Customer Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfSegmentsMajorCustomersExplanatory
454 32503 - Disclosure - Cost of Sales (Tables) Network

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455 Implied Table Table

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456 Cost of Sales [abstract] Abstract fsm:DisclosureOfCostOfSalesAbstract
457 Schedule of Cost of Sales Concept (Text Block (HTML)) For Period fsm:DisclosureOfDetailedInformationAboutCostOfSalesExplanatory
458 32603 - Disclosure - Selling General and Administrative (Tables) Network

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459 Implied Table Table

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461 Schedule of Selling, General and Administrative Expenses Concept (Text Block (HTML)) For Period fsm:DisclosureOfDetailedInformationAboutSellingGeneralAndAdministrativeExpenseExplanatory
462 32703 - Disclosure - Other Expenses (Tables) Network

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463 Implied Table Table

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464 Other Expense [abstract] Abstract fsm:OtherExpenseAbstract
465 Schedule of Other Expenses Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfExpensesByNatureExplanatory
466 32803 - Disclosure - Interest and Finance Cost, Net (Tables) Network

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467 Implied Table Table

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468 Interest and Finance Cost, Net Abstract fsm:InterestAndFinanceCostNetAbstract
469 Schedule of interest and finance cost, net Concept (Text Block (HTML)) For Period fsm:DisclosureOfFinanceIncomeCostTableTextBlock
470 32903 - Disclosure - Income Taxes (Tables) Network

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471 Implied Table Table

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472 Income Taxes [abstract] Abstract fsm:IncomeTaxesAbstract
473 Schedule of Income Tax Reconciliation Concept (Text Block (HTML)) For Period fsm:DisclosureOfReconciliationOfAccountingProfitMultipliedByApplicableTaxRatesAndAverageEffectiveTaxRateTextBlock
474 Schedule of Current and Deferred Taxes Concept (Text Block (HTML)) For Period fsm:DisclosureOfMajorComponentsOfIncomeTaxExpenseTextBlock
475 Schedule of Deferred Tax Assets and Liabilities Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDeferredTaxesExplanatory
476 Schedule of Unrecognized Deductible Temporary Difference and Unused Tax Losses Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsExplanatory
477 Schedule of Tax Losses Expiry Dates Concept (Text Block (HTML)) For Period fsm:DisclosureOfTaxLossesCarryforwardsExpiryDatesTextBlock
478 33003 - Disclosure - Segment Information (Tables) Network

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479 Implied Table Table

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480 Segment Information [abstract] Abstract ifrs-full:DisclosureOfOperatingSegmentsAbstract
481 Schedule of Segment Information Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOperatingSegmentsExplanatory
482 33103 - Disclosure - Fair Value Measurements (Tables) Network

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483 Implied Table Table

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484 Fair Value Measurements [abstract] Abstract fsm:DisclosureOfFairValueMeasurementOfAssetsAndLiabilitiesAbstract
485 Schedule of Fair Value of Financial Instruments Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFairValueOfFinancialInstrumentsExplanatory
486 33203 - Disclosure - Management of Financial Risk (Tables) Network

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491 Currency risk [member] Member ifrs-full:CurrencyRiskMember
492 Other price risk [member] Member ifrs-full:OtherPriceRiskMember
493 Commodity price risk [member] Member ifrs-full:CommodityPriceRiskMember
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495 Schedule of Company's Maximum Exposure to Credit Risk Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfCreditRiskExplanatory
496 Schedule of Company's Liquidity Risk Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfManagingLiquidityRisk
497 Disclosure of Nature and Extent of Risks Arising from Financial Instruments Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsExplanatory
498 Schedule of capital structure Concept (Text Block (HTML)) For Period fsm:DisclosureOfCapitalStructureTextBlock
499 33303 - Disclosure - Supplemental Cashflow Information (Tables) Network

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500 Implied Table Table

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502 Schedule of Changes in Liabilities Arising from Financing Activities Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesExplanatory
503 33403 - Disclosure - Contingencies and Capital Commitments (Tables) Network

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504 Implied Table Table

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506 Schedule of Operating Lease Payments, by Assets Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfRecognisedFinanceLeaseAsAssetsByLesseeExplanatory
507 40101 - Disclosure - Reporting Entity (Details) Network

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508 Implied Table Table

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511 Domicile of entity Concept (Text/String) For Period ifrs-full:DomicileOfEntity
512 Address of entity's registered office Concept (Text/String) For Period ifrs-full:AddressOfRegisteredOfficeOfEntity
513 Description of nature of entity's operations and principal activities Concept (Text/String) For Period ifrs-full:DescriptionOfNatureOfEntitysOperationsAndPrincipalActivities
514 40201 - Disclosure - Basis of Presentation (Narrative) (Details) Network

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515 Implied Table Table

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518 Description of presentation currency Concept (Text/String) For Period ifrs-full:DescriptionOfPresentationCurrency
519 40301 - Disclosure - Significant Accounting Policies (Narrative) (Details) Network

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 fsm:DisclosureOfSignificantAccountingPoliciesTable
521 Types of share-based payment arrangements [axis] Axis ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
522 Share-based payment arrangements [member] Member ifrs-full:SharebasedPaymentArrangementsMember
523 Restricted Share Units [member] Member fsm:RestrictedShareUnitsMember
524 Performance Share Units [member] Member fsm:PerformanceShareUnitsMember
525 Classes of property, plant and equipment [axis] Axis ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
526 Property, plant and equipment [member] Member ifrs-full:PropertyPlantAndEquipmentMember
527 Machinery and Equipment [member] Member ifrs-full:MachineryMember
528 Mining assets [member] Member ifrs-full:MiningAssetsMember
529 Mineral Properties [member] Member ifrs-full:MiningPropertyMember
530 San Jose M&I Property [member] Member fsm:SanJoseMeasuredAndIndicatedPropertyMember
531 Caylloma M&I Property [member] Member fsm:CayllomaMeasuredAndIndicatedPropertyMember
532 Range [axis] Axis ifrs-full:RangeAxis
533 Ranges [member] Member ifrs-full:RangesMember
534 Top of range [member] Member ifrs-full:TopOfRangeMember
535 Disclosure Of Significant Accounting Policies [line items] LineItems fsm:DisclosureOfSignificantAccountingPoliciesLineItems
536 Depreciation method, property, plant and equipment Concept (Text/String) For Period ifrs-full:DepreciationMethodPropertyPlantAndEquipment
537 Useful lives or depreciation rates, property, plant and equipment Concept (Text/String) For Period ifrs-full:UsefulLivesOrDepreciationRatesPropertyPlantAndEquipment
538 Impairment loss Concept (Monetary) For Period Debit ifrs-full:ImpairmentLoss
539 Variation potential percentage benchmark Concept (Percent) For Period fsm:VariationPotentialPercentageBenchmark
540 Variation potential percentage globally Concept (Percent) For Period fsm:PotentialVariationEstimatedConfidencePercentGlobally
541 Confidence percentage related to inferred tonnes, grade, metal content recoverability Concept (Percent) For Period fsm:ConfidencePercentageRelatedToInferredTonnesAndGradeAndMetalContentRecoverability
542 Inferred recoverability of resources percentage, benchmark Concept (Percent) For Period fsm:InferredRecoverabilityOfResourcesPercentageBenchmark
543 Conversion factors related to inferred resources Concept (Percent) For Period fsm:ConversionFactorsRelatedToInferredResources
544 Percentage of inferred resources Concept (Percent) For Period fsm:PercentageOfInferredResources
545 vesting period Concept (xbrli:durationItemType) For Period fsm:ShareBasedArrangementVestingPeriod
546 Description of vesting requirements for share-based payment arrangement Concept (Text/String) For Period ifrs-full:DescriptionOfVestingRequirementsForSharebasedPaymentArrangement
547 40302 - Disclosure - Significant Accounting Policies (Disclosure of subsidiaries) (Details) Network

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 http://www.fortunasilver.com/role/DisclosureSignificantAccountingPoliciesDisclosureOfSubsidiariesDetails
548 Disclosure of subsidiaries [table] Table

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*

 ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesTable
549 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
550 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
551 Subsidiaries [member] Member ifrs-full:SubsidiariesMember
552 Minera Bateas S.A.C. [member] Member fsm:MineraBateasS.a.c.Member
553 Compania Minera Cuzcatlan S.A. de C.V. [member] Member fsm:CompaniaMineraCuzcatlanS.a.DeC.v.Member
554 Mansfield Minera S.A. [member] Member fsm:MansfieldMineraS.a.Member
555 Disclosure of subsidiaries [line items] LineItems ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesLineItems
556 Name of subsidiary Concept (Text/String) For Period ifrs-full:NameOfSubsidiary
557 Principal place of business of subsidiary Concept (Text/String) For Period ifrs-full:PrincipalPlaceOfBusinessOfSubsidiary
558 Proportion of ownership interest in subsidiary Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInSubsidiary
559 Principal activity of subsidiary Concept (Text/String) For Period fsm:PrincipalActivityOfSubsidiary
560 40303 - Disclosure - Significant Accounting Policies (Schedule related to property, plant and equipment) (Details) Network

*

*

 http://www.fortunasilver.com/role/DisclosureSignificantAccountingPoliciesScheduleRelatedToPropertyPlantAndEquipmentDetails
561 Disclosure of detailed information about property, plant and equipment [table] Table

*

*

 ifrs-full:DisclosureOfPropertyPlantAndEquipmentTable
562 Classes of property, plant and equipment [axis] Axis ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
563 Property, plant and equipment [member] Member ifrs-full:PropertyPlantAndEquipmentMember
564 Land and buildings [member] Member ifrs-full:LandAndBuildingsMember
565 Land [member] Member ifrs-full:LandMember
566 Buildings [member] Member ifrs-full:BuildingsMember
567 Mining assets [member] Member ifrs-full:MiningAssetsMember
568 Mineral Properties [member] Member ifrs-full:MiningPropertyMember
569 Buildings Located At Mine [member] Member fsm:BuildingsLocatedAtMineMember
570 Leasehold improvements [member] Member ifrs-full:LeaseholdImprovementsMember
571 Machinery and Equipment [member] Member ifrs-full:MachineryMember
572 Furniture and other equipment [member] Member fsm:FurnitureAndOtherEquipmentsMember
573 Transport units [member] Member ifrs-full:VehiclesMember
574 Capital Work in Progress [member] Member ifrs-full:ConstructionInProgressMember
575 Disclosure of detailed information about property, plant and equipment [line items] LineItems ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems
576 Measurement bases, property, plant and equipment Concept (Text/String) For Period ifrs-full:MeasurementBasesPropertyPlantAndEquipment
577 Depreciation method, property, plant and equipment Concept (Text/String) For Period ifrs-full:DepreciationMethodPropertyPlantAndEquipment
578 Useful lives or depreciation rates, property, plant and equipment Concept (Text/String) For Period ifrs-full:UsefulLivesOrDepreciationRatesPropertyPlantAndEquipment
579 40401 - Disclosure - Use of Judgements and Estimates (Narrative) (Details) Network

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*

 http://www.fortunasilver.com/role/DisclosureUseOfJudgementsAndEstimatesNarrativeDetails
580 Disclosure of Detailed Information About Use of Judgements and Estimates Explanatory [table] Table

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*

 fsm:DisclosureOfDetailedInformationAboutUseOfJudgementsAndEstimatesExplanatoryTable
581 Type of Commodity [axis] Axis fsm:TypeOfCommodityAxis
582 Type of Commodity [member] Member fsm:TypeOfCommodityMember
583 Gold Commodity Type [member] Member fsm:GoldCommodityTypeMember
584 Silver Commodity Type [member] Member fsm:SilverCommodityTypeMember
585 Lead Commodity [member] Member fsm:LeadCommodityMember
586 Zinc Commodity [member] Member fsm:ZincCommodityMember
587 Long-Term Gold Type [Member] Member fsm:LongTermGoldCommodityTypeMember
588 Copper Commodity Type [Member] Member fsm:CopperCommodityTypeMember
589 Disclosure Of Detailed Information About Use Of Judgements And Estimates Explanatory [line items] LineItems fsm:DisclosureOfDetailedInformationAboutUseOfJudgementsAndEstimatesExplanatoryLineItems
590 Long term prices used for reserves and resource estimates related to commodity Concept (Decimal) For Period fsm:LongTermPricesUsedForReservesAndResourceEstimatesRelatedToCommodity
591 Discount rate (as percent) Concept (Percent) For Period fsm:CommodityPriceDiscountRateByUsingMinePlanModel
592 40501 - Disclosure - Accounts and Other Receivables (Schedule of Trade and Other Receivables) (Details) Network

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*

 http://www.fortunasilver.com/role/DisclosureAccountsAndOtherReceivablesScheduleOfTradeAndOtherReceivablesDetails
593 Implied Table Table

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*

 implied:Table
594 Accounts and Other Receivables [abstract] Abstract fsm:AccountsAndOtherReceivablesAbstract
595 Trade receivables from concentrate sales Concept (Monetary) As Of Debit ifrs-full:TradeReceivables
596 Advances and other receivables Concept (Monetary) As Of Debit ifrs-full:OtherReceivables
597 Value added taxes recoverable Concept (Monetary) As Of Debit ifrs-full:ValueAddedTaxReceivables
598 Total accounts and other receivables Concept (Monetary) As Of Debit ifrs-full:TradeAndOtherCurrentReceivables
599 Amount of past due Concept (Monetary) As Of Debit fsm:ReceivablesPastDueFromCustomers
600 40601 - Disclosure - Inventories (Schedule of Inventories) (Details) Network

*

*

 http://www.fortunasilver.com/role/DisclosureInventoriesScheduleOfInventoriesDetails
601 Implied Table Table

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*

 implied:Table
602 Inventories [abstract] Abstract fsm:InventoriesAbstract
603 Concentrate stockpiles Concept (Monetary) As Of Debit fsm:ConcentrateStockpiles
604 Ore stockpiles Concept (Monetary) As Of Debit ifrs-full:CurrentOreStockpiles
605 Materials and supplies Concept (Monetary) As Of Debit ifrs-full:ProductionSupplies
606 Total current inventories Concept (Monetary) As Of Debit ifrs-full:Inventories
607 Cost of inventories recognised as expense during period Concept (Monetary) For Period Debit ifrs-full:CostOfInventoriesRecognisedAsExpenseDuringPeriod
608 Inventories write down of materials and supplies to net realizable value Concept (Monetary) For Period Debit ifrs-full:WritedownsReversalsOfInventories
609 40701 - Disclosure - Derivative Assets and Derivative Liabilities (Narrative) (Details) Network

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*

 http://www.fortunasilver.com/role/DisclosureDerivativeAssetsAndDerivativeLiabilitiesNarrativeDetails
610 Disclosure of financial assets [table] Table

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 ifrs-full:DisclosureOfFinancialAssetsTable
611 Type of Commodity [axis] Axis fsm:TypeOfCommodityAxis
612 Type of Commodity [member] Member fsm:TypeOfCommodityMember
613 Zinc Commodity [member] Member fsm:ZincCommodityMember
614 Lead Commodity [member] Member fsm:LeadCommodityMember
615 Maturity [axis] Axis ifrs-full:MaturityAxis
616 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
617 Maturing from August 2017 to October 2018 Member fsm:MaturingBetweenAugust2017ToOctober2018Member
618 Maturing from January to October 2018 Member fsm:MaturingFromJanuaryToOctober2018Member
619 Maturing between November 2018 and June 2019 Member fsm:MaturingBetweenNovember2018AndJune2019Member
620 Classes of financial assets [axis] Axis ifrs-full:ClassesOfFinancialAssetsAxis
621 Financial assets, class [member] Member ifrs-full:FinancialAssetsMember
622 Financial assets at fair value, class [member] Member ifrs-full:FinancialAssetsAtFairValueMember
623 Derivatives [member] Member ifrs-full:DerivativesMember
624 Option and Forward Contracts [member] Member fsm:OptionAndForwardContractsMember
625 Forward contract [member] Member ifrs-full:ForwardContractMember
626 Swap contract [member] Member ifrs-full:SwapContractMember
627 Interest rate swap contract [member] Member ifrs-full:InterestRateSwapContractMember
628 Types of risks [axis] Axis ifrs-full:TypesOfRisksAxis
629 Risks [member] Member ifrs-full:TypesOfRisksMember
630 Market risk [member] Member ifrs-full:MarketRiskMember
631 Interest rate risk [member] Member ifrs-full:InterestRateRiskMember
632 Disclosure of financial assets [line items] LineItems ifrs-full:DisclosureOfFinancialAssetsLineItems
633 Derivative contract quantity of commodity Concept (num:weightItemType) For Period fsm:DerivativeContractQuantityOfCommodity
634 Derivative contract cap price per tonne Concept (Per Unit) For Period fsm:DerivativeContractCapPricePerTonne
635 Derivative contract floor price per tonne Concept (Per Unit) For Period fsm:DerivativeContractFloorPricePerTonne
636 Nominal amount of hedging instrument Concept (Decimal) As Of ifrs-full:NominalAmountOfHedgingInstrument
637 Term (in years) Concept (xbrli:durationItemType) For Period fsm:TermOfHedgingInstrument
638 Derivative contract interest rate Concept (Percent) For Period fsm:DerivativeContractInterestRate
639 Gains (losses) on cash flow hedges, net of tax Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnCashFlowHedgesNetOfTax
640 Proceeds from sales or maturity of financial instruments, classified as investing activities Concept (Monetary) For Period Debit ifrs-full:ProceedsFromSalesOrMaturityOfFinancialInstrumentsClassifiedAsInvestingActivities
641 40702 - Disclosure - Derivative Assets and Derivative Liabilities (Schedule of Derivative Assets and Liabilities) (Details) Network

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*

 http://www.fortunasilver.com/role/DisclosureDerivativeAssetsAndDerivativeLiabilitiesScheduleOfDerivativeAssetsAndLiabilitiesDetails
642 Disclosure of financial assets [table] Table

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*

 ifrs-full:DisclosureOfFinancialAssetsTable
643 Category of Asset or Liability [axis] Axis fsm:CategoryOfAssetOrLiabilityAxis
644 Category of Asset or Liability [member] Member fsm:CategoryOfAssetOrLiabilityMember
645 Derivatives [member] Member ifrs-full:DerivativesMember
646 Option and Forward Contracts [member] Member fsm:OptionAndForwardContractsMember
647 Swap contract [member] Member ifrs-full:SwapContractMember
648 Interest rate swap contract [member] Member ifrs-full:InterestRateSwapContractMember
649 Disclosure of financial assets [line items] LineItems ifrs-full:DisclosureOfFinancialAssetsLineItems
650 Derivative financial assets Concept (Monetary) As Of Debit ifrs-full:DerivativeFinancialAssets
651 Derivative financial liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentDerivativeFinancialLiabilities
652 40703 - Disclosure - Derivative Assets and Derivative Liabilities (Schedule of Derivative Gain (Loss) Settled and Open Positions) (Details) Network

*

*

 http://www.fortunasilver.com/role/DisclosureDerivativeAssetsAndDerivativeLiabilitiesScheduleOfDerivativeGainLossSettledAndOpenPositionsDetails
653 Disclosure of financial assets and liabilities [table] Table

*

*

 fsm:DisclosureOfFinancialAssetsAndLiabilitiesTable
654 Type of Commodity [axis] Axis fsm:TypeOfCommodityAxis
655 Type of Commodity [member] Member fsm:TypeOfCommodityMember
656 Zinc Commodity [member] Member fsm:ZincCommodityMember
657 Lead Commodity [member] Member fsm:LeadCommodityMember
658 Classes of financial assets [axis] Axis ifrs-full:ClassesOfFinancialAssetsAxis
659 Financial assets, class [member] Member ifrs-full:FinancialAssetsMember
660 Financial assets at fair value, class [member] Member ifrs-full:FinancialAssetsAtFairValueMember
661 Derivatives [member] Member ifrs-full:DerivativesMember
662 Option and Forward Contracts [member] Member fsm:OptionAndForwardContractsMember
663 Range [axis] Axis ifrs-full:RangeAxis
664 Ranges [member] Member ifrs-full:RangesMember
665 Bottom of range [member] Member ifrs-full:BottomOfRangeMember
666 Top of range [member] Member ifrs-full:TopOfRangeMember
667 Disclosure of financial assets and liabilities [line items] LineItems fsm:DisclosureOfFinancialAssetsAndLiabilitiesLineItems
668 Tonnes settled Concept (num:weightItemType) For Period fsm:SettledTonnesQuantity
669 Average settled price per tonne Concept (Per Unit) For Period fsm:AverageSettledPricePerTonne
670 Settlement gains (losses) Concept (Monetary) For Period Credit fsm:RealizedGainLossOnClosedDerivative
671 Open positions - tonnes Concept (num:weightItemType) For Period fsm:OpenTonnesQuantity
672 Price per tonne Concept (Per Unit) For Period fsm:OpenPositionsPricePerTonne
673 Unrealized gains (losses) Concept (Monetary) For Period Credit fsm:UnrealizedGainLossOnClosedDerivative
674 40801 - Disclosure - Mineral Properties and Exploration and Evaluation Assets (Narrative) (Details) Network

*

*

 http://www.fortunasilver.com/role/DisclosureMineralPropertiesAndExplorationAndEvaluationAssetsNarrativeDetails
675 Disclosure of detailed information about property, plant and equipment [table] Table

*

*

 ifrs-full:DisclosureOfPropertyPlantAndEquipmentTable
676 Classes of property, plant and equipment [axis] Axis ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
677 Property, plant and equipment [member] Member ifrs-full:PropertyPlantAndEquipmentMember
678 Mining assets [member] Member ifrs-full:MiningAssetsMember
679 Lindero Project [member] Member fsm:LinderoProjectMember
680 Mineral Properties [member] Member ifrs-full:MiningPropertyMember
681 Tlacolula Property [member] Member fsm:TlacolulaPropertyMember
682 Other exploration projects Member fsm:OtherExplorationProjectsMember
683 Disclosure of detailed information about property, plant and equipment [line items] LineItems ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems
684 Capitalized interest Concept (Monetary) For Period ifrs-full:InterestCostsCapitalised
685 Purchase of mining assets Concept (Monetary) For Period Credit ifrs-full:PurchaseOfMiningAssets
686 Fair value of consideration transferred to purchase asset Concept (Monetary) As Of Debit fsm:FairValueOfConsiderationTransferredToPurchaseAsset
687 Number of instruments or interests issued or issuable Concept (Decimal) As Of ifrs-full:NumberOfInstrumentsOrInterestsIssuedOrIssuable
688 Equity interests of acquirer Concept (Monetary) As Of Credit ifrs-full:EquityInterestsOfAcquirer
689 NSR royalty, percentage Concept (Percent) For Period fsm:NetSmelterReturnRoyaltyPercentage
690 Half of NSR royalty purchase price, per agreement Concept (Monetary) For Period Credit fsm:PurchaseAndSaleAgreementNetSmelterReturnPurchasePriceOfHalfOfRoyaltyPercentage
691 Expense arising from exploration for and evaluation of mineral resources Concept (Monetary) For Period Debit ifrs-full:ExpenseArisingFromExplorationForAndEvaluationOfMineralResources
692 40802 - Disclosure - Mineral Properties and Exploration and Evaluation Assets (Schedule Related to Property, Plant and Equipment) (Details) Network

*

*

 http://www.fortunasilver.com/role/DisclosureMineralPropertiesAndExplorationAndEvaluationAssetsScheduleRelatedToPropertyPlantAndEquipmentDetails
693 Disclosure of detailed information about property, plant and equipment [table] Table

*

*

 ifrs-full:DisclosureOfPropertyPlantAndEquipmentTable
694 Classes of property, plant and equipment [axis] Axis ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
695 Property, plant and equipment [member] Member ifrs-full:PropertyPlantAndEquipmentMember
696 Mining assets [member] Member ifrs-full:MiningAssetsMember
697 Mineral Properties [member] Member ifrs-full:MiningPropertyMember
698 Caylloma Plant and Mine Equipment [member] Member fsm:CayllomaPlantAndMineEquipmentMember
699 San Jose Property Plant and Mine Equipment [member] Member fsm:SanJosePropertyPlantAndMineEquipmentMember
700 Lindero Project [member] Member fsm:LinderoProjectMember
701 Other Mineral Properties and Exploration and Evaluation Assets [member] Member fsm:OtherMineralPropertiesAndExplorationAndEvaluationAssetsMember
702 Classes of assets [axis] Axis ifrs-full:ClassesOfAssetsAxis
703 Assets [member] Member ifrs-full:ClassesOfAssetsMember
704 Mineral Properties and Exploration and Evaluation Assets [member] Member fsm:MineralPropertiesAndExplorationAndEvaluationAssetsMember
705 Depletable [member] Member fsm:DepletableMember
706 Non Depletable [member] Member fsm:NonDepletableMember
707 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Axis ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
708 Carrying amount [member] Member ifrs-full:CarryingAmountMember
709 Gross carrying amount [member] Member ifrs-full:GrossCarryingAmountMember
710 Accumulated depreciation, amortisation and impairment [member] Member ifrs-full:AccumulatedDepreciationAmortisationAndImpairmentMember
711 Accumulated impairment [member] Member ifrs-full:AccumulatedImpairmentMember
712 Accumulated depreciation and amortisation [member] Member ifrs-full:AccumulatedDepreciationAndAmortisationMember
713 Disclosure of detailed information about property, plant and equipment [line items] LineItems ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems
714 Cost Abstract fsm:PropertyPlantAndEquipmentRelatedCostAbstract
715 Balance at December 31 Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
716 Additions Concept (Monetary) For Period Debit ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment
717 Changes in rehabilitation provision Concept (Monetary) For Period Debit fsm:IncreaseDecreaseChangeInRehabilitationProvision
718 Disposals Concept (Monetary) For Period Credit ifrs-full:DisposalsPropertyPlantAndEquipment
719 Reclassifications Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughTransfersPropertyPlantAndEquipment
720 Balance at December 31 Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
721 Accumulated Impairment Abstract fsm:PropertyPlantAndEquipmentRelatedAccumulatedImpairmentAbstract
722 Balance at December 31 Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
723 Impairment reversal (note 14) Concept (Monetary) For Period ifrs-full:ReversalOfImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment
724 Balance at December 31 Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
725 Accumulated Depreciation Abstract fsm:PropertyPlantAndEquipmentRelatedAccumulatedDepreciationAbstract
726 Balance at December 31 Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
727 Impairment reversal (note 14) Concept (Monetary) For Period ifrs-full:ReversalOfImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment
728 Depletion Concept (Monetary) For Period ifrs-full:DepreciationPropertyPlantAndEquipment
729 Balance at December 31 Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
730 NET BOOK VALUE at December 31, Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
731 40803 - Disclosure - Mineral Properties and Exploration and Evaluation Assets (Northwest Nevada Initiative Property) (Details) Network

*

*

 http://www.fortunasilver.com/role/DisclosureMineralPropertiesAndExplorationAndEvaluationAssetsNorthwestNevadaInitiativePropertyDetails
732 Implied Table Table

*

*

 implied:Table
733 Plant and Equipment [abstract] Abstract ifrs-full:DisclosureOfPropertyPlantAndEquipmentAbstract
734 Balance at December 31 Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
735 Additions Concept (Monetary) For Period Debit ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment
736 Reclassifications Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughTransfersPropertyPlantAndEquipment
737 Less: write-off Concept (Monetary) For Period ifrs-full:ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment
738 Balance at December 31 Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
739 40901 - Disclosure - Plant and Equipment (Schedule Related to Property, Plant and Equipment) (Details) Network

*

*

 http://www.fortunasilver.com/role/DisclosurePlantAndEquipmentScheduleRelatedToPropertyPlantAndEquipmentDetails
740 Disclosure of detailed information about property, plant and equipment [table] Table

*

*

 ifrs-full:DisclosureOfPropertyPlantAndEquipmentTable
741 Classes of property, plant and equipment [axis] Axis ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
742 Property, plant and equipment [member] Member ifrs-full:PropertyPlantAndEquipmentMember
743 Machinery and Equipment [member] Member ifrs-full:MachineryMember
744 Land, Buildings and Leasehold Improvements [member] Member fsm:LandBuildingsAndLeaseholdImprovementsMember
745 Furniture and Other Equipment [member] Member fsm:FurnitureAndOtherEquipmentMember
746 Transport units [member] Member ifrs-full:VehiclesMember
747 Equipment Under Finance Lease [member] Member fsm:EquipmentUnderFinanceLeaseMember
748 Capital Work in Progress [member] Member ifrs-full:ConstructionInProgressMember
749 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Axis ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
750 Carrying amount [member] Member ifrs-full:CarryingAmountMember
751 Gross carrying amount [member] Member ifrs-full:GrossCarryingAmountMember
752 Accumulated depreciation, amortisation and impairment [member] Member ifrs-full:AccumulatedDepreciationAmortisationAndImpairmentMember
753 Accumulated depreciation and amortisation [member] Member ifrs-full:AccumulatedDepreciationAndAmortisationMember
754 Accumulated impairment [member] Member ifrs-full:AccumulatedImpairmentMember
755 Disclosure of detailed information about property, plant and equipment [line items] LineItems ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems
756 Cost Abstract fsm:PropertyPlantAndEquipmentRelatedCostAbstract
757 Balance at December 31 Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
758 Additions Concept (Monetary) For Period Debit ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment
759 Changes in rehabilitation provision Concept (Monetary) For Period Debit fsm:IncreaseDecreaseChangeInRehabilitationProvision
760 Disposals Concept (Monetary) For Period Credit ifrs-full:DisposalsPropertyPlantAndEquipment
761 Reclassifications Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughTransfersPropertyPlantAndEquipment
762 Balance at December 31 Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
763 Accumulated Impairment Abstract fsm:PropertyPlantAndEquipmentRelatedAccumulatedImpairmentAbstract
764 Balance at December 31 Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
765 Disposals Concept (Monetary) For Period Credit ifrs-full:DisposalsPropertyPlantAndEquipment
766 Impairment reversal (note 14) Concept (Monetary) For Period ifrs-full:ReversalOfImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment
767 Balance at December 31 Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
768 Accumulated Depreciation Abstract fsm:PropertyPlantAndEquipmentRelatedAccumulatedDepreciationAbstract
769 Balance at December 31 Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
770 Disposals Concept (Monetary) For Period Credit ifrs-full:DisposalsPropertyPlantAndEquipment
771 Reclassifications Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughTransfersPropertyPlantAndEquipment
772 Impairment reversal (note 14) Concept (Monetary) For Period ifrs-full:ReversalOfImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment
773 Depreciation Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDepreciationAndAmortisationExpense
774 Balance at December 31 Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
775 NET BOOK VALUE at December 31, Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
776 40902 - Disclosure - Plant and Equipment (Capital Work in Progress) (Details) Network

*

*

 http://www.fortunasilver.com/role/DisclosurePlantAndEquipmentCapitalWorkInProgressDetails
777 Disclosure of detailed information about property, plant and equipment [table] Table

*

*

 ifrs-full:DisclosureOfPropertyPlantAndEquipmentTable
778 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Axis ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
779 Carrying amount [member] Member ifrs-full:CarryingAmountMember
780 Gross carrying amount [member] Member ifrs-full:GrossCarryingAmountMember
781 Classes of property, plant and equipment [axis] Axis ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
782 Property, plant and equipment [member] Member ifrs-full:PropertyPlantAndEquipmentMember
783 Capital Work in Progress [member] Member ifrs-full:ConstructionInProgressMember
784 Lindero Project [member] Member fsm:LinderoProjectMember
785 Caylloma M&I Property [member] Member fsm:CayllomaMeasuredAndIndicatedPropertyMember
786 San Jose Property Plant and Mine Equipment [member] Member fsm:SanJosePropertyPlantAndMineEquipmentMember
787 Disclosure of detailed information about property, plant and equipment [line items] LineItems ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems
788 Additions Concept (Monetary) For Period Debit ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment
789 41001 - Disclosure - Impairment Reversal (Narrative) (Detail) Network

*

*

 http://www.fortunasilver.com/role/DisclosureImpairmentReversalNarrativeDetail
790 Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [table] Table

*

*

 ifrs-full:DisclosureOfInformationForEachMaterialImpairmentLossRecognisedOrReversedForIndividualAssetOrCashgeneratingUnitTable
791 Classes of property, plant and equipment [axis] Axis ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
792 Property, plant and equipment [member] Member ifrs-full:PropertyPlantAndEquipmentMember
793 Mining assets [member] Member ifrs-full:MiningAssetsMember
794 Mineral Properties [member] Member ifrs-full:MiningPropertyMember
795 Caylloma Plant and Mine Equipment [member] Member fsm:CayllomaPlantAndMineEquipmentMember
796 Individual assets or cash-generating units [axis] Axis ifrs-full:IndividualAssetsOrCashgeneratingUnitsAxis
797 Entity's total for individual assets or cash-generating units [member] Member ifrs-full:EntitysTotalForIndividualAssetsOrCashgeneratingUnitsMember
798 Individual assets or cash-generating units [member] Member ifrs-full:IndividualAssetsOrCashgeneratingUnitsMember
799 Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items] LineItems ifrs-full:DisclosureOfInformationForEachMaterialImpairmentLossRecognisedOrReversedForIndividualAssetOrCashgeneratingUnitLineItems
800 Reversal of impairment loss Concept (Monetary) For Period Credit ifrs-full:ReversalOfImpairmentLoss
801 Impairment loss Concept (Monetary) For Period Debit ifrs-full:ImpairmentLoss
802 Discount rate applied to cash flow projections Concept (Percent) As Of ifrs-full:DescriptionOfDiscountRatesAppliedToCashFlowProjections
803 41002 - Disclosure - Impairment Reversal (Schedule of Metal Prices Assumptions Used for Impairment Determination) (Details) Network

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*

 http://www.fortunasilver.com/role/DisclosureImpairmentReversalScheduleOfMetalPricesAssumptionsUsedForImpairmentDeterminationDetails
804 Metal Price Assumptions Used [table] Table

*

*

 fsm:MetalPriceAssumptionsUsedTable
805 Type of Commodity [axis] Axis fsm:TypeOfCommodityAxis
806 Type of Commodity [member] Member fsm:TypeOfCommodityMember
807 Silver Commodity Type [member] Member fsm:SilverCommodityTypeMember
808 Gold Commodity Type [member] Member fsm:GoldCommodityTypeMember
809 Lead Commodity [member] Member fsm:LeadCommodityMember
810 Zinc Commodity [member] Member fsm:ZincCommodityMember
811 Metal Price Assumptions Used [line items] LineItems fsm:MetalPriceAssumptionsUsedLineItems
812 2018 Concept (Decimal) As Of fsm:CommodityPriceUsedForDeterminingFairValueAssumptionsCurrentTwelveMonths
813 2019 Concept (Per Unit) As Of fsm:CommodityPriceUsedForDeterminingFairValueAssumptionsTwoYears
814 2020 Concept (Per Unit) As Of fsm:CommodityPriceUsedForDeterminingFairValueAssumptionsThreeYears
815 2021 Concept (Per Unit) As Of fsm:CommodityPriceUsedForDeterminingFairValueAssumptionsFourYears
816 2022 - 2025 Concept (Per Unit) As Of fsm:CommodityPriceUsedForDeterminingFairValueAssumptionsFiveYearsAndAfter
817 41101 - Disclosure - Investments in Associate (Narrative) (Details) Network

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*

 http://www.fortunasilver.com/role/DisclosureInvestmentsInAssociateNarrativeDetails
818 Disclosure of associates [table] Table

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*

 ifrs-full:DisclosureOfSignificantInvestmentsInAssociatesTable
819 Associates [axis] Axis ifrs-full:SignificantInvestmentsInAssociatesAxis
820 Entity's total for associates [member] Member ifrs-full:EntitysTotalForAssociatesMember
821 Medgold Member fsm:MedgoldMember
822 Prospero Member fsm:ProsperoSilverCorporationMember
823 Disclosure of associates [line items] LineItems ifrs-full:DisclosureOfSignificantInvestmentsInAssociatesLineItems
824 Name of associate Concept (Text/String) For Period ifrs-full:NameOfAssociate
825 Number of warrants acquired by entity Concept (Decimal) For Period fsm:NumberOfWarrantsAcquiredByEntity
826 Number of shares acquired by entity Concept (Decimal) For Period fsm:NumberOfSharesAcquiredByEntity
827 Number of common share purchased in associate Concept (Decimal) As Of fsm:NumberOfCommonSharePurchasedInAssociate
828 Proportion of ownership interest in associate Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInAssociate
829 Number of units acquired by entity Concept (Decimal) For Period fsm:NumberOfUnitsAcquiredByEntity
830 Purchased per unit price paid by entity Concept (Decimal) For Period fsm:PurchasedPerUnitPricePaidByEntity
831 Purchased per share price paid by entity Concept (Decimal) For Period fsm:PurchasedPerSharePrice
832 Available for sale interest in investment Concept (Monetary) For Period Credit fsm:AvailableForSaleInterestInInvestment
833 Strike price per warrant Concept (Share) As Of fsm:StrikePricePerWarrant
834 Proportion of ownership interest if all warrants exercised Concept (Percent) For Period fsm:ProportionOfOwnershipInterestIfAllWarrantsExercised
835 Number of common shares purchase upon exercise of share purchase warrants Concept (Shares) For Period fsm:ExerciseOfWarrantsToPurchaseCommonShares
836 Proportion of ownership interest upon warrants exercised Concept (Percent) For Period fsm:ProportionOfOwnershipInterestUponWarrantsExercised
837 Market value of investment Concept (Monetary) As Of Debit fsm:FairValueOfInvestment
838 41102 - Disclosure - Investments in Associate (Disclosure of Associates) (Details) Network

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*

 http://www.fortunasilver.com/role/DisclosureInvestmentsInAssociateDisclosureOfAssociatesDetails
839 Disclosure of associates [table] Table

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*

 ifrs-full:DisclosureOfSignificantInvestmentsInAssociatesTable
840 Associates [axis] Axis ifrs-full:SignificantInvestmentsInAssociatesAxis
841 Entity's total for associates [member] Member ifrs-full:EntitysTotalForAssociatesMember
842 Medgold Member fsm:MedgoldMember
843 Prospero Member fsm:ProsperoSilverCorporationMember
844 Disclosure of associates [line items] LineItems ifrs-full:DisclosureOfSignificantInvestmentsInAssociatesLineItems
845 Shares and warrants presented as marketable securities at beginning Concept (Monetary) As Of Debit ifrs-full:FairValueOfInvestmentsInAssociatesWherePriceQuotationsPublished
846 Fair value adjustments Concept (Monetary) For Period Credit ifrs-full:AdjustmentsForGainsLossesOnFairValueAdjustmentInvestmentProperty
847 Exercise of warrants Concept (Monetary) For Period Credit ifrs-full:PurchaseOfInterestsInInvestmentsAccountedForUsingEquityMethod
848 Purchase of additional shares Concept (Monetary) For Period Credit fsm:PurchaseOfAdditionalShares
849 Share of net income (loss) Concept (Monetary) For Period Credit ifrs-full:ShareOfProfitLossOfContinuingOperationsOfAssociatesAndJointVenturesAccountedForUsingEquityMethod
850 Shares and warrants presented as marketable securities at ending Concept (Monetary) As Of Debit ifrs-full:FairValueOfInvestmentsInAssociatesWherePriceQuotationsPublished
851 41201 - Disclosure - Assets Held for Sale (Activity) (Details) Network

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*

 http://www.fortunasilver.com/role/DisclosureAssetsHeldForSaleActivityDetails
852 Implied Table Table

*

*

 implied:Table
853 Assets held for sale [abstract] Abstract ifrs-full:NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleOrAsHeldForDistributionToOwnersAbstract
854 Balance Concept (Monetary) As Of Debit ifrs-full:OtherCurrentAssets
855 Transfer from property, plant and equipment Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughTransfersPropertyPlantAndEquipment
856 Dispositions Concept (Monetary) For Period Credit ifrs-full:DisposalsPropertyPlantAndEquipment
857 Write-downs Concept (Monetary) For Period ifrs-full:WritedownsReversalsOfPropertyPlantAndEquipment
858 Balance Concept (Monetary) As Of Debit ifrs-full:OtherCurrentAssets
859 41301 - Disclosure - Long-term Receivables (Narrative) (Details) Network

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 http://www.fortunasilver.com/role/DisclosureLongTermReceivablesNarrativeDetails
860 Disclosure of fair value measurement of assets [table] Table

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*

 ifrs-full:DisclosureOfFairValueMeasurementOfAssetsTable
861 Classes of property, plant and equipment [axis] Axis ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
862 Property, plant and equipment [member] Member ifrs-full:PropertyPlantAndEquipmentMember
863 Mining assets [member] Member ifrs-full:MiningAssetsMember
864 Mineral Properties [member] Member ifrs-full:MiningPropertyMember
865 Lindero Project [member] Member fsm:LinderoProjectMember
866 Disclosure of fair value measurement of assets [line items] LineItems ifrs-full:DisclosureOfFairValueMeasurementOfAssetsLineItems
867 Value added tax receivables Concept (Monetary) As Of Debit ifrs-full:ValueAddedTaxReceivables
868 41401 - Disclosure - Deposits and Advances to Contractors (Details) Network

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*

 http://www.fortunasilver.com/role/DisclosureDepositsAndAdvancesToContractorsDetails
869 Statement [Table] Table

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*

 us-gaap:StatementTable
870 Classes of property, plant and equipment [axis] Axis ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
871 Property, plant and equipment [member] Member ifrs-full:PropertyPlantAndEquipmentMember
872 Lindero Project [member] Member fsm:LinderoProjectMember
873 Caylloma Plant and Mine Equipment [member] Member fsm:CayllomaPlantAndMineEquipmentMember
874 Statement [Line Items] LineItems us-gaap:StatementLineItems
875 Advance paid to contractors Concept (Monetary) As Of Debit ifrs-full:LongtermDeposits
876 41501 - Disclosure - Trade and Other Payables (Schedule of Trade and Other Payables) (Details) Network

*

*

 http://www.fortunasilver.com/role/DisclosureTradeAndOtherPayablesScheduleOfTradeAndOtherPayablesDetails
877 Implied Table Table

*

*

 implied:Table
878 Trade and Other Payables [abstract] Abstract ifrs-full:TradeAndOtherPayablesAbstract
879 Trade accounts payable Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherPayablesToTradeSuppliers
880 Lindero construction trade payables Concept (Monetary) As Of Credit ifrs-full:PayablesForPurchaseOfNoncurrentAssets
881 Refundable deposits to contractors Concept (Monetary) As Of Credit fsm:RefundableDepositsToContractors
882 Payroll payable Concept (Monetary) As Of Credit ifrs-full:ShorttermEmployeeBenefitsAccruals
883 Mining royalty Concept (Monetary) As Of Credit fsm:MiningRoyaltyPayable
884 Value added taxes payable Concept (Monetary) As Of Credit ifrs-full:ValueAddedTaxPayables
885 Interest payable Concept (Monetary) As Of Credit ifrs-full:InterestPayable
886 Due to related parties (note 16) Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherPayablesToRelatedParties
887 Other payables Concept (Monetary) As Of Credit ifrs-full:OtherPayables
888 Trade and other payables, subtotal Concept (Monetary) As Of Credit fsm:TradeAndOtherPayablesExcludingShareUnitsTotal
889 Deferred share units payable Concept (Monetary) As Of Credit fsm:DeferredShareUnitsPayable
890 Restricted share units payable Concept (Monetary) As Of Credit fsm:RestrictedShareUnitsPayable
891 Performance share units payable Concept (Monetary) As Of Credit fsm:PerformanceShareUnitsPayable
892 Total current share units payable Concept (Monetary) As Of Credit fsm:CurrentShareUnitsPayable
893 Total trade and other payables Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherCurrentPayables
894 41601 - Disclosure - Related Party Transactions (Narrative) (Details) Network

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*

 http://www.fortunasilver.com/role/DisclosureRelatedPartyTransactionsNarrativeDetails
895 Disclosure of transactions between related parties [table] Table

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*

 ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesTable
896 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
897 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
898 Other related parties [member] Member ifrs-full:OtherRelatedPartiesMember
899 Gold Group Management Inc [member] Member fsm:GoldGroupManagementIncMember
900 Disclosure of transactions between related parties [line items] LineItems ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesLineItems
901 Amounts payable, related party transactions Concept (Monetary) As Of Credit ifrs-full:AmountsPayableRelatedPartyTransactions
902 41602 - Disclosure - Related Party Transactions (Schedule of Related Party) (Details) Network

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*

 http://www.fortunasilver.com/role/DisclosureRelatedPartyTransactionsScheduleOfRelatedPartyDetails
903 Disclosure of transactions between related parties [table] Table

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*

 ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesTable
904 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
905 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
906 Other related parties [member] Member ifrs-full:OtherRelatedPartiesMember
907 Gold Group Management Inc and Mill Street Services Ltd [member] Member fsm:GoldGroupManagementIncAndMillStreetServicesLtdMember
908 Disclosure of transactions between related parties [line items] LineItems ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesLineItems
909 Personnel costs Concept (Monetary) For Period Debit fsm:PersonnelCostsRelatedPartyTransactions
910 General and administrative expenses Concept (Monetary) For Period Debit fsm:GeneralAndAdministrativeExpenseRelatedPartyTransactions
911 Purchase of goods and service related party transactions Concept (Monetary) For Period Debit fsm:PurchaseOfGoodsAndServiceRelatedPartyTransactions
912 Salaries and benefits Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensationShorttermEmployeeBenefits
913 Directors fees Concept (Monetary) For Period Debit fsm:KeyManagementPersonnelCompensationDirectorFees
914 Consulting fees Concept (Monetary) For Period Debit fsm:KeyManagementPersonnelCompensationConsultingFees
915 Share-based payments Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensationSharebasedPayment
916 Key management personnel compensation Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensation
917 41701 - Disclosure - Credit Facility (Narrative) (Details) Network

*

*

 http://www.fortunasilver.com/role/DisclosureCreditFacilityNarrativeDetails
918 Disclosure of detailed information about borrowings [table] Table

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*

 ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable
919 Borrowings by name [axis] Axis ifrs-full:BorrowingsByNameAxis
920 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
921 Term Credit Facility [member] Member fsm:TermCreditFacilityMember
922 Amended Credit Facility [Member] Member fsm:AmendedCreditFacilityMember
923 Revolving Credit Facility [member] Member fsm:DebtInstrumentRevolvingCreditFacilityMember
924 Non-Revolving Credit Facility [Member] Member fsm:DebtInstrumentNonRevolvingCreditFacilityMember
925 Third Amendment and Restated Credit Facility [Member] Member fsm:ThirdAmendmentAndRestatedCreditFacilityMember
926 Range [axis] Axis ifrs-full:RangeAxis
927 Ranges [member] Member ifrs-full:RangesMember
928 Bottom of range [member] Member ifrs-full:BottomOfRangeMember
929 Top of range [member] Member ifrs-full:TopOfRangeMember
930 Non-adjusting events after reporting period [axis] Axis ifrs-full:NonadjustingEventsAfterReportingPeriodAxis
931 Non-adjusting events after reporting period [member] Member ifrs-full:NonadjustingEventsMember
932 Entering into significant commitments or contingent liabilities [member] Member ifrs-full:EnteringIntoSignificantCommitmentsOrContingentLiabilitiesMember
933 Disclosure of detailed information about borrowings [line items] LineItems ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
934 Notional amount Concept (Monetary) As Of ifrs-full:NotionalAmount
935 Borrowings, maturity Concept (Text/String) For Period ifrs-full:BorrowingsMaturity
936 Secured bank loans received Concept (Monetary) As Of Credit ifrs-full:SecuredBankLoansReceived
937 Borrowings, interest rate basis Concept (Text/String) For Period ifrs-full:BorrowingsInterestRateBasis
938 Upfront lenders fee and transactions cost Concept (Monetary) For Period Debit ifrs-full:BankAndSimilarCharges
939 Additional amount in revolving facility Concept (Monetary) For Period Credit fsm:IncreaseDecreaseInFinancialInstrumentsNominalAmount
940 41702 - Disclosure - Credit Facility (Modification under IFRS) (Details) Network

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*

 http://www.fortunasilver.com/role/DisclosureCreditFacilityModificationUnderIfrsDetails
941 Implied Table Table

*

*

 implied:Table
942 Bank Loan [abstract] Abstract ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsAbstract
943 Balance at December 31, 2017 Concept (Monetary) As Of Credit ifrs-full:NoncurrentPortionOfNoncurrentSecuredBankLoansReceived
944 Loss on modifications Concept (Monetary) For Period Debit fsm:AdjustmentsForLossesGainsOnDebtInstruments
945 Transaction costs paid Concept (Monetary) For Period Credit fsm:PaymentsForDebtModificationsCosts
946 Amortization of transaction costs Concept (Monetary) For Period Credit fsm:IncreaseThroughAmortizationOfTransactionCosts
947 Drawdown of facility Concept (Monetary) As Of Credit ifrs-full:SecuredBankLoansReceived
948 Balance at December 31, 2018 Concept (Monetary) As Of Credit ifrs-full:NoncurrentPortionOfNoncurrentSecuredBankLoansReceived
949 Undrawn amount in credit facility Concept (Monetary) As Of Credit ifrs-full:UndrawnBorrowingFacilities
950 41801 - Disclosure - Finance Lease Obligations (Schedule of Finance Lease Obligations) (Details) Network

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*

 http://www.fortunasilver.com/role/DisclosureFinanceLeaseObligationsScheduleOfFinanceLeaseObligationsDetails
951 Disclosure of finance lease and operating lease by lessee [table] Table

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*

 ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeTable
952 Maturity [axis] Axis ifrs-full:MaturityAxis
953 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
954 Not later than one year [member] Member ifrs-full:NotLaterThanOneYearMember
955 Later than one year and not later than five years [member] Member ifrs-full:LaterThanOneYearAndNotLaterThanFiveYearsMember
956 Disclosure of finance lease and operating lease by lessee [line items] LineItems ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeLineItems
957 Total lease obligations Concept (Monetary) As Of Credit ifrs-full:MinimumFinanceLeasePaymentsPayable
958 Less: future finance charges Concept (Monetary) As Of Credit ifrs-full:FutureFinanceChargeOnFinanceLease
959 Present value of minimum lease payments Concept (Monetary) As Of Credit ifrs-full:MinimumFinanceLeasePaymentsPayableAtPresentValue
960 Current portion Concept (Monetary) As Of Credit ifrs-full:CurrentFinanceLeaseLiabilities
961 Non-current portion Concept (Monetary) As Of Credit ifrs-full:NoncurrentFinanceLeaseLiabilities
962 41901 - Disclosure - Other Liabilities (Schedule of Other Liabilities) (Details) Network

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*

 http://www.fortunasilver.com/role/DisclosureOtherLiabilitiesScheduleOfOtherLiabilitiesDetails
963 Implied Table Table

*

*

 implied:Table
964 Other Liabilities [abstract] Abstract fsm:DisclosureOfOtherLiabilitiesAbstract
965 Restricted share units (note 21) Concept (Monetary) As Of Credit fsm:RestrictedShareUnitsObligation
966 Other liabilities Concept (Monetary) As Of Credit ifrs-full:OtherLiabilities
967 Other non-current liabilities Concept (Monetary) As Of Credit ifrs-full:OtherNoncurrentLiabilities
968 42001 - Disclosure - Closure and Rehabilitation Provisions (Schedule of Closure and Rehabilitation Provisions) (Details) Network

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*

 http://www.fortunasilver.com/role/DisclosureClosureAndRehabilitationProvisionsScheduleOfClosureAndRehabilitationProvisionsDetails
969 Disclosure of other provisions [table] Table

*

*

 ifrs-full:DisclosureOfOtherProvisionsTable
970 Classes of property, plant and equipment [axis] Axis ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
971 Property, plant and equipment [member] Member ifrs-full:PropertyPlantAndEquipmentMember
972 Mining assets [member] Member ifrs-full:MiningAssetsMember
973 Mineral Properties [member] Member ifrs-full:MiningPropertyMember
974 Caylloma M&I Property [member] Member fsm:CayllomaMeasuredAndIndicatedPropertyMember
975 San Jose M&I Property [member] Member fsm:SanJoseMeasuredAndIndicatedPropertyMember
976 Lindero Project [member] Member fsm:LinderoProjectMember
977 Classes of other provisions [axis] Axis ifrs-full:ClassesOfProvisionsAxis
978 Other provisions [member] Member ifrs-full:OtherProvisionsMember
979 Provision for decommissioning, restoration and rehabilitation costs [member] Member ifrs-full:ProvisionForDecommissioningRestorationAndRehabilitationCostsMember
980 Disclosure of other provisions [line items] LineItems ifrs-full:DisclosureOfOtherProvisionsLineItems
981 Balance at beginning Concept (Monetary) As Of Credit ifrs-full:OtherProvisions
982 Changes in estimate Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughTransfersAndOtherChangesOtherProvisions
983 Incurred and charged against the provision Concept (Monetary) For Period Debit ifrs-full:ProvisionUsedOtherProvisions
984 Accretion Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughTimeValueOfMoneyAdjustmentOtherProvisions
985 Effect of foreign exchange changes Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesOtherProvisions
986 Balance at ending Concept (Monetary) As Of Credit ifrs-full:OtherProvisions
987 Current portion Concept (Monetary) As Of Credit fsm:CurrentProvisionForAssetRetirementObligation
988 Non-current provisions Concept (Monetary) As Of Credit fsm:NoncurrentProvisionForAssetRetirementObligation
989 42002 - Disclosure - Closure and Rehabilitation Provisions (Schedule of Estimates Used in Closure and Rehabilitation Provisions) (Details) Network

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*

 http://www.fortunasilver.com/role/DisclosureClosureAndRehabilitationProvisionsScheduleOfEstimatesUsedInClosureAndRehabilitationProvisionsDetails
990 Disclosure of other provisions [table] Table

*

*

 ifrs-full:DisclosureOfOtherProvisionsTable
991 Classes of property, plant and equipment [axis] Axis ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
992 Property, plant and equipment [member] Member ifrs-full:PropertyPlantAndEquipmentMember
993 Mining assets [member] Member ifrs-full:MiningAssetsMember
994 Mineral Properties [member] Member ifrs-full:MiningPropertyMember
995 Caylloma M&I Property [member] Member fsm:CayllomaMeasuredAndIndicatedPropertyMember
996 San Jose M&I Property [member] Member fsm:SanJoseMeasuredAndIndicatedPropertyMember
997 Lindero Project [member] Member fsm:LinderoProjectMember
998 Classes of other provisions [axis] Axis ifrs-full:ClassesOfProvisionsAxis
999 Other provisions [member] Member ifrs-full:OtherProvisionsMember
1000 Provision for decommissioning, restoration and rehabilitation costs [member] Member ifrs-full:ProvisionForDecommissioningRestorationAndRehabilitationCostsMember
1001 Range [axis] Axis ifrs-full:RangeAxis
1002 Ranges [member] Member ifrs-full:RangesMember
1003 Bottom of range [member] Member ifrs-full:BottomOfRangeMember
1004 Top of range [member] Member ifrs-full:TopOfRangeMember
1005 Disclosure of other provisions [line items] LineItems ifrs-full:DisclosureOfOtherProvisionsLineItems
1006 Anticipated settlement date Concept (Year) For Period fsm:AnticipatedOtherProvisionSettlementDate
1007 Undiscounted estimated cash flow Concept (Monetary) As Of Credit fsm:OtherProvisionsUndiscountedCashFlows
1008 Estimated life of mine (years) Concept (xbrli:durationItemType) For Period fsm:MajorAssumptionsMadeConcerningFutureEventsOtherProvisionsEstimatedLife
1009 Discount rate Concept (Percent) As Of fsm:MajorAssumptionsMadeConcerningFutureEventsOtherProvisionsDiscountRate
1010 Inflation rate Concept (Percent) As Of fsm:MajorAssumptionsMadeConcerningFutureEventsOtherProvisionsInflationRate
1011 42101 - Disclosure - Share Based Payments (Narrative) (Details) Network

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*

 http://www.fortunasilver.com/role/DisclosureShareBasedPaymentsNarrativeDetails
1012 Disclosure of terms and conditions of share-based payment arrangement [table] Table

*

*

 ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable
1013 Range [axis] Axis ifrs-full:RangeAxis
1014 Ranges [member] Member ifrs-full:RangesMember
1015 Bottom of range [member] Member ifrs-full:BottomOfRangeMember
1016 Top of range [member] Member ifrs-full:TopOfRangeMember
1017 Types of share-based payment arrangements [axis] Axis ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
1018 Share-based payment arrangements [member] Member ifrs-full:SharebasedPaymentArrangementsMember
1019 Restricted Share Units [member] Member fsm:RestrictedShareUnitsMember
1020 Performance Share Units [member] Member fsm:PerformanceShareUnitsMember
1021 Disclosure of terms and conditions of share-based payment arrangement [line items] LineItems ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems
1022 Description of vesting requirements for share-based payment arrangement Concept (Text/String) For Period ifrs-full:DescriptionOfVestingRequirementsForSharebasedPaymentArrangement
1023 Granted, other units Concept (Decimal) For Period ifrs-full:NumberOfInstrumentsOtherEquityInstrumentsGranted
1024 Fair value per unit Concept (Share) For Period fsm:FairValueOfNumberOfOtherEquityInstrumentsGrantedInShareBasedPaymentArrangement
1025 42102 - Disclosure - Share Based Payments (Schedule of Outstanding Units Activity) (Details) Network

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*

 http://www.fortunasilver.com/role/DisclosureShareBasedPaymentsScheduleOfOutstandingUnitsActivityDetails
1026 Disclosure of terms and conditions of share-based payment arrangement [table] Table

*

*

 ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable
1027 Types of share-based payment arrangements [axis] Axis ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
1028 Share-based payment arrangements [member] Member ifrs-full:SharebasedPaymentArrangementsMember
1029 Deferred Share Units [member] Member fsm:DeferredShareUnitsMember
1030 Restricted Share Units [member] Member fsm:RestrictedShareUnitsMember
1031 Cash Settled, Restricted Share Units [Member] Member fsm:CashSettledRestrictedShareUnitsMember
1032 Equity Settled, Restricted Share Units [Member] Member fsm:EquitySettledRestrictedShareUnitsMember
1033 Performance Share Units [member] Member fsm:PerformanceShareUnitsMember
1034 Cash Settled, Performance Share Units [Member] Member fsm:CashSettledPerformanceShareUnitsMember
1035 Equity Settled, Performance Share Units [Member] Member fsm:EquitySettledPerformanceShareUnitsMember
1036 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
1037 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
1038 Key management personnel of entity or parent [member] Member ifrs-full:KeyManagementPersonnelOfEntityOrParentMember
1039 Officers [member] Member fsm:OfficersMember
1040 Other related parties [member] Member ifrs-full:OtherRelatedPartiesMember
1041 Employee [member] Member fsm:EmployeeMember
1042 Disclosure of terms and conditions of share-based payment arrangement [line items] LineItems ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems
1043 Outstanding, other than options, beginning Concept (Decimal) As Of ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement
1044 Granted, other units Concept (Decimal) For Period ifrs-full:NumberOfInstrumentsOtherEquityInstrumentsGranted
1045 Paid, other units Concept (Decimal) For Period ifrs-full:NumberOfOtherEquityInstrumentsExercisedOrVestedInSharebasedPaymentArrangement
1046 Forfeited or cancelled, other units Concept (Decimal) For Period ifrs-full:NumberOfOtherEquityInstrumentsForfeitedInSharebasedPaymentArrangement
1047 Outstanding, other than options, ending Concept (Decimal) As Of ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement
1048 Outstanding, beginning balance, fair value Concept (Monetary) As Of Credit fsm:FairValueOfOtherEquityInstrumentsInSharebasedPaymentArrangementOutstanding
1049 Fair Value, granted, other units Concept (Monetary) For Period Credit fsm:FairValueOfOtherEquityInstrumentsInSharebasedPaymentArrangementGranted
1050 Fair value, forfeited or cancelled, other units Concept (Monetary) For Period Debit fsm:FairValueOfOtherEquityInstrumentsInShareBasedPaymentArrangementForfeitedOrCancelled
1051 Outstanding, ending balance, fair value Concept (Monetary) As Of Credit fsm:FairValueOfOtherEquityInstrumentsInSharebasedPaymentArrangementOutstanding
1052 Fair value, Current portion Concept (Monetary) As Of Credit fsm:FairValueOfOtherEquityInstrumentsInShareBasedPaymentArrangementOutstandingCurrent
1053 Fair value, Non-current portion Concept (Monetary) As Of Credit fsm:FairValueOfOtherEquityInstrumentsInShareBasedPaymentArrangementOutstandingNonCurrent
1054 Weighted average, beginning, other units Concept (Monetary) As Of ifrs-full:WeightedAverageExercisePriceOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement
1055 Fair value, Paid, other units Concept (Monetary) For Period ifrs-full:WeightedAverageExercisePriceOfOtherEquityInstrumentsExercisedOrVestedInSharebasedPaymentArrangement
1056 Fair Value, Paid in Cash, other units Concept (Monetary) For Period Debit fsm:FairValueOfOtherEquityInstrumentsInSharebasedPaymentArrangementPaidInCash
1057 Fair value increase (decrease), other units Concept (Monetary) For Period Credit fsm:FairValueOtherEquityInstrumentsIncreaseDecreaseInSharebasedPaymentArrangement
1058 Change in fair value, other units Concept (Monetary) For Period Credit fsm:FairValueIncreaseDecreaseInOtherUnits
1059 Weighted average, ending, other units Concept (Monetary) As Of ifrs-full:WeightedAverageExercisePriceOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement
1060 42201 - Disclosure - Share Capital (Narrative) (Details) Network

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 http://www.fortunasilver.com/role/DisclosureShareCapitalNarrativeDetails
1061 Disclosure of classes of share capital [table] Table

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*

 ifrs-full:DisclosureOfClassesOfShareCapitalTable
1062 Classes of share capital [axis] Axis ifrs-full:ClassesOfShareCapitalAxis
1063 Share capital [member] Member ifrs-full:ClassesOfShareCapitalMember
1064 Stock Options Class of Share Capital [member] Member fsm:StockOptionsClassOfShareCapitalMember
1065 Range [axis] Axis ifrs-full:RangeAxis
1066 Ranges [member] Member ifrs-full:RangesMember
1067 Bottom of range [member] Member ifrs-full:BottomOfRangeMember
1068 Top of range [member] Member ifrs-full:TopOfRangeMember
1069 Disclosure of classes of share capital [line items] LineItems ifrs-full:DisclosureOfClassesOfShareCapitalLineItems
1070 Issuance of common shares, shares Concept (Shares) For Period fsm:SharesOfEntityStockIssuedDuringPeriod
1071 Issue of equity Concept (Monetary) For Period Credit ifrs-full:IssueOfEquity
1072 Shares issued for the period per share amount Concept (Decimal) For Period fsm:SharesIssuedForPeriodPerShareAmount
1073 Proceeds from issuing shares, gross Concept (Monetary) For Period Debit fsm:GrossProceedsFromIssuingSharesIncludingIssuanceCosts
1074 Proceeds from issuing shares Concept (Monetary) For Period Debit ifrs-full:ProceedsFromIssuingShares
1075 Number of shares authorised Concept (Shares) As Of ifrs-full:NumberOfSharesAuthorised
1076 Number of shares that remain available under the plan for issuance Concept (Decimal) As Of fsm:NumberOfSharesRemainAvailableUnderPlan
1077 Granted, options Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsGrantedInSharebasedPaymentArrangement
1078 Risk free interest rate, share options granted Concept (Percent) For Period ifrs-full:DescriptionOfRiskFreeInterestRateShareOptionsGranted
1079 Expected volatility, share options granted Concept (Percent) For Period ifrs-full:DescriptionOfExpectedVolatilityShareOptionsGranted
1080 Option life, share options granted Concept (Decimal) For Period ifrs-full:DescriptionOfOptionLifeShareOptionsGranted
1081 Description of expected forfeiture rate Concept (Decimal) For Period fsm:DescriptionOfExpectedForfeitureRate
1082 Expected dividend, share options granted Concept (Monetary) For Period ifrs-full:ExpectedDividendShareOptionsGranted
1083 Description of option pricing model, share options granted Concept (Text/String) For Period ifrs-full:DescriptionOfOptionPricingModelShareOptionsGranted
1084 Fair value per share granted options Concept (Share) As Of fsm:FairValuePerShareGrantedOptions
1085 Expense from share-based payment transactions with employees Concept (Monetary) For Period Debit ifrs-full:ExpenseFromSharebasedPaymentTransactionsWithEmployees
1086 42202 - Disclosure - Share Capital (Schedule of Share Capital) (Details) Network

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*

 http://www.fortunasilver.com/role/DisclosureShareCapitalScheduleOfShareCapitalDetails
1087 Disclosure of classes of share capital [table] Table

*

*

 ifrs-full:DisclosureOfClassesOfShareCapitalTable
1088 Classes of share capital [axis] Axis ifrs-full:ClassesOfShareCapitalAxis
1089 Share capital [member] Member ifrs-full:ClassesOfShareCapitalMember
1090 Stock Options Class of Share Capital [member] Member fsm:StockOptionsClassOfShareCapitalMember
1091 Warrants Class of Share Capital [member] Member fsm:WarrantsClassOfShareCapitalMember
1092 Disclosure of classes of share capital [line items] LineItems ifrs-full:DisclosureOfClassesOfShareCapitalLineItems
1093 Outstanding, options, beginning Concept (Decimal) As Of ifrs-full:NumberOfOutstandingShareOptions
1094 Exercised, options Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsExercisedInSharebasedPaymentArrangement
1095 Granted, options Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsGrantedInSharebasedPaymentArrangement
1096 Forfeited, options Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsForfeitedInSharebasedPaymentArrangement
1097 Outstanding, options, ending Concept (Decimal) As Of ifrs-full:NumberOfOutstandingShareOptions
1098 Exercisable, options Concept (Decimal) As Of ifrs-full:NumberOfShareOptionsExercisableInSharebasedPaymentArrangement
1099 Outstanding, options, Weighted average exercise price, beginning Concept (Monetary) As Of ifrs-full:WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement
1100 Exercised, options, Weighted average exercise price Concept (Monetary) For Period ifrs-full:WeightedAverageExercisePriceOfShareOptionsExercisedInSharebasedPaymentArrangement
1101 Forfeited, options, Weighted average exercise price Concept (Monetary) For Period ifrs-full:WeightedAverageExercisePriceOfShareOptionsForfeitedInSharebasedPaymentArrangement
1102 Granted, options, Weighted average exercise price Concept (Monetary) For Period ifrs-full:WeightedAverageExercisePriceOfShareOptionsGrantedInSharebasedPaymentArrangement
1103 Outstanding, options, Weighted average exercise price, ending Concept (Monetary) As Of ifrs-full:WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement
1104 Exercisable, options, Weighted average exercise price Concept (Monetary) As Of ifrs-full:WeightedAverageExercisePriceOfShareOptionsExercisableInSharebasedPaymentArrangement
1105 Outstanding, other than options, beginning Concept (Decimal) As Of ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement
1106 Paid, other units Concept (Decimal) For Period ifrs-full:NumberOfOtherEquityInstrumentsExercisedOrVestedInSharebasedPaymentArrangement
1107 Granted, other than options Concept (Decimal) For Period ifrs-full:NumberOfInstrumentsOtherEquityInstrumentsGranted
1108 Forfeited, other than options Concept (Decimal) For Period ifrs-full:NumberOfOtherEquityInstrumentsForfeitedInSharebasedPaymentArrangement
1109 Expired unvested, other than options Concept (Decimal) For Period ifrs-full:NumberOfOtherEquityInstrumentsExpiredInSharebasedPaymentArrangement
1110 Outstanding, other than options, ending Concept (Decimal) As Of ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement
1111 Weighted average, beginning, other units Concept (Monetary) As Of ifrs-full:WeightedAverageExercisePriceOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement
1112 Weighted average, exercised, other units Concept (Monetary) For Period ifrs-full:WeightedAverageExercisePriceOfOtherEquityInstrumentsExercisedOrVestedInSharebasedPaymentArrangement
1113 Weighted average, expired unvested, other units Concept (Monetary) For Period ifrs-full:WeightedAverageExercisePriceOfOtherEquityInstrumentsExpiredInSharebasedPaymentArrangement
1114 Weighted average, ending, other units Concept (Monetary) As Of ifrs-full:WeightedAverageExercisePriceOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement
1115 42301 - Disclosure - Earnings per Share (Narrative) (Details) Network

*

*

 http://www.fortunasilver.com/role/DisclosureEarningsPerShareNarrativeDetails
1116 Disclosure of Earnings Per Share [table] Table

*

*

 fsm:DisclosureOfEarningsPerShareTable
1117 Antidilutive Securities [axis] Axis fsm:AntidilutiveSecuritiesAxis
1118 Antidilutive Securities [member] Member fsm:AntidilutiveSecuritiesMember
1119 Stock Options and Warrants [member] Member fsm:StockOptionsAndWarrantsMember
1120 Stock Options [Member] Member fsm:StockOptionsMember
1121 Warrants [Member] Member fsm:WarrantsMember
1122 Disclosure of Earnings Per Share [line items] LineItems fsm:DisclosureOfEarningsPerShareLineItems
1123 Antidilutive securities excluded from computation of EPS Concept (Decimal) For Period fsm:NumberOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
1124 42302 - Disclosure - Earnings per Share (Schedule of Earnings per Share) (Details) Network

*

*

 http://www.fortunasilver.com/role/DisclosureEarningsPerShareScheduleOfEarningsPerShareDetails
1125 Implied Table Table

*

*

 implied:Table
1126 Earnings per Share [abstract] Abstract ifrs-full:EarningsPerShareAbstract
1127 Net income for the period Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
1128 Weighted average number of shares ('000's) Concept (Shares) For Period ifrs-full:WeightedAverageShares
1129 Earnings per share - basic Concept (Share) For Period ifrs-full:BasicEarningsLossPerShare
1130 Incremental shares from options, RSUs and PSUs Concept (Shares) For Period ifrs-full:DilutiveEffectOfShareOptionsOnNumberOfOrdinaryShares
1131 Incremental shares from warrants Concept (Shares) For Period ifrs-full:DilutiveEffectOfConvertibleInstrumentsOnNumberOfOrdinaryShares
1132 Weighted average diluted number of shares (000's) Concept (Shares) For Period ifrs-full:AdjustedWeightedAverageShares
1133 Diluted earnings per share Concept (Share) For Period ifrs-full:DilutedEarningsLossPerShare
1134 42401 - Disclosure - Sales (Schedule of Sales by Product and Geographical Area) (Details) Network

*

*

 http://www.fortunasilver.com/role/DisclosureSalesScheduleOfSalesByProductAndGeographicalAreaDetails
1135 Disclosure of geographical areas [table] Table

*

*

 ifrs-full:DisclosureOfGeographicalAreasTable
1136 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
1137 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
1138 Foreign countries [member] Member ifrs-full:ForeignCountriesMember
1139 PERU Member country:PE
1140 MEXICO Member country:MX
1141 Switzerland Member country:CH
1142 Products and services [axis] Axis ifrs-full:ProductsAndServicesAxis
1143 Products and services [member] Member ifrs-full:ProductsAndServicesMember
1144 Silver Gold Concentrates [member] Member fsm:SilverGoldConcentratesMember
1145 Silver Lead Concentrates [member] Member fsm:SilverLeadConcentratesMember
1146 Zinc Concentrates [member] Member fsm:ZincConcentratesMember
1147 Disclosure of geographical areas [line items] LineItems ifrs-full:DisclosureOfGeographicalAreasLineItems
1148 Sales/Revenue to/from external customers Concept (Monetary) For Period Credit ifrs-full:Revenue
1149 Provisional pricing adjustment Concept (Monetary) For Period Credit fsm:ProvisionalPriceAdjustmentIncomeExpense
1150 42402 - Disclosure - Sales (Schedule of Sales by Major Customer) (Details) Network

*

*

 http://www.fortunasilver.com/role/DisclosureSalesScheduleOfSalesByMajorCustomerDetails
1151 Disclosure of major customers [table] Table

*

*

 ifrs-full:DisclosureOfMajorCustomersTable
1152 Major customers [axis] Axis ifrs-full:MajorCustomersAxis
1153 Customers [member] Member ifrs-full:MajorCustomersMember
1154 Customer One [member] Member fsm:CustomerOneMember
1155 Customer Two [member] Member fsm:CustomerTwoMember
1156 Customer Three [member] Member fsm:CustomerThreeMember
1157 Customer Four [member] Member fsm:CustomerFourMember
1158 Customer Five [Member] Member fsm:CustomerFiveMember
1159 Disclosure of major customers [line items] LineItems ifrs-full:DisclosureOfMajorCustomersLineItems
1160 Revenue Concept (Monetary) For Period Credit ifrs-full:Revenue
1161 42501 - Disclosure - Cost of Sales (Schedule of Cost of Sales) (Details) Network

*

*

 http://www.fortunasilver.com/role/DisclosureCostOfSalesScheduleOfCostOfSalesDetails
1162 Disclosure of detailed information about property, plant and equipment [table] Table

*

*

 ifrs-full:DisclosureOfPropertyPlantAndEquipmentTable
1163 Classes of property, plant and equipment [axis] Axis ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
1164 Property, plant and equipment [member] Member ifrs-full:PropertyPlantAndEquipmentMember
1165 Mining assets [member] Member ifrs-full:MiningAssetsMember
1166 Mineral Properties [member] Member ifrs-full:MiningPropertyMember
1167 Caylloma M&I Property [member] Member fsm:CayllomaMeasuredAndIndicatedPropertyMember
1168 San Jose M&I Property [member] Member fsm:SanJoseMeasuredAndIndicatedPropertyMember
1169 Disclosure of detailed information about property, plant and equipment [line items] LineItems ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems
1170 Direct mining costs Concept (Monetary) For Period Debit fsm:DirectMiningCosts
1171 Salaries and benefits Concept (Monetary) For Period Debit ifrs-full:WagesAndSalaries
1172 Workers' Participation Concept (Monetary) For Period Debit fsm:WorkersParticipationCostOfSales
1173 Depletion and depreciation Concept (Monetary) For Period Debit ifrs-full:DepreciationExpense
1174 Royalties Concept (Monetary) For Period Debit ifrs-full:RoyaltyExpense
1175 Cost of sales Concept (Monetary) For Period Debit ifrs-full:CostOfSales
1176 42601 - Disclosure - Selling General and Administrative (Schedule of Selling General And Administrative Expenses) (Details) Network

*

*

 http://www.fortunasilver.com/role/DisclosureSellingGeneralAndAdministrativeScheduleOfSellingGeneralAndAdministrativeExpensesDetails
1177 Implied Table Table

*

*

 implied:Table
1178 Selling, General and Administrative [abstract] Abstract fsm:SellingGeneralAndAdministrativeAbstract
1179 Selling, general and administration (note 26) Concept (Monetary) For Period Debit ifrs-full:GeneralAndAdministrativeExpense
1180 Workers' participation Concept (Monetary) For Period Debit fsm:WorkersParticipationExpense
1181 Selling, general and administrative subtotal Concept (Monetary) For Period Debit fsm:SellingGeneralAndAdministrativeExpenseExcludingSharebasedPayments
1182 Share-based payments Concept (Monetary) For Period Debit ifrs-full:ExpenseFromSharebasedPaymentTransactionsWithEmployees
1183 Total selling, general and administrative expense Concept (Monetary) For Period Debit ifrs-full:SellingGeneralAndAdministrativeExpense
1184 42701 - Disclosure - Other Expenses (Schedule of Other Expenses) (Details) Network

*

*

 http://www.fortunasilver.com/role/DisclosureOtherExpensesScheduleOfOtherExpensesDetails
1185 Implied Table Table

*

*

 implied:Table
1186 Other Expense [abstract] Abstract fsm:OtherExpenseAbstract
1187 Loss on disposal of property, plant, and equipment Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnDisposalsOfPropertyPlantAndEquipment
1188 Write off of spare parts Concept (Monetary) For Period ifrs-full:InventoryWritedown2011
1189 Write off of assets held for sale Concept (Monetary) For Period Debit fsm:WriteOffAssetsHeldForSale
1190 Write off of mineral properties Concept (Monetary) For Period ifrs-full:ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment
1191 Other expense (income) Concept (Monetary) For Period Credit fsm:OtherFinancialExpenseIncome
1192 Other expenses, by nature Concept (Monetary) For Period Debit ifrs-full:OtherExpenseByNature
1193 42801 - Disclosure - Interest and Finance Cost, Net (Details) Network

*

*

 http://www.fortunasilver.com/role/DisclosureInterestAndFinanceCostNetDetails
1194 Implied Table Table

*

*

 implied:Table
1195 Interest and Finance Cost, Net Abstract fsm:InterestAndFinanceCostNetAbstract
1196 Interest income Concept (Monetary) For Period Credit ifrs-full:RevenueFromInterest
1197 Interest expense Concept (Monetary) For Period Debit ifrs-full:InterestExpense
1198 Standby and commitment fees Concept (Monetary) For Period Debit ifrs-full:FeeAndCommissionExpense
1199 Accretion expense Concept (Monetary) For Period Debit fsm:IfrsAccretionExpense
1200 Loss on debt restructure Concept (Monetary) For Period Debit fsm:LossOnDebtModification
1201 Interest and Finance Cost, Net Concept (Monetary) For Period Credit fsm:InterestAndFinanceExpenseNet
1202 42901 - Disclosure - Income Taxes (Narrative) (Details) Network

*

*

 http://www.fortunasilver.com/role/DisclosureIncomeTaxesNarrativeDetails
1203 Income Taxes [table] Table

*

*

 fsm:IncomeTaxesTable
1204 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
1205 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
1206 PERU Member country:PE
1207 ARGENTINA Member country:AR
1208 British Columbia [member] Member fsm:BritishColumbiaMember
1209 CANADA Member country:CA
1210 Non-adjusting events after reporting period [axis] Axis ifrs-full:NonadjustingEventsAfterReportingPeriodAxis
1211 Non-adjusting events after reporting period [member] Member ifrs-full:NonadjustingEventsMember
1212 Changes in tax rates or tax laws enacted or announced [member] Member ifrs-full:ChangesInTaxRatesOrTaxLawsEnactedOrAnnouncedMember
1213 Income Taxes [line items] LineItems fsm:IncomeTaxesLineItems
1214 Applicable tax rate Concept (Percent) For Period ifrs-full:ApplicableTaxRate
1215 Resource related expense accumulated with no deferred tax benefit recognized Concept (Monetary) As Of Debit fsm:ResourceRelatedExpenseAccumulatedWithNoDeferredTaxBenefitRecognized
1216 42902 - Disclosure - Income Taxes (Schedule of Income Tax Reconciliation) (Details) Network

*

*

 http://www.fortunasilver.com/role/DisclosureIncomeTaxesScheduleOfIncomeTaxReconciliationDetails
1217 Implied Table Table

*

*

 implied:Table
1218 Income Taxes [abstract] Abstract fsm:IncomeTaxesAbstract
1219 Net income before tax Concept (Monetary) For Period Credit ifrs-full:AccountingProfit
1220 Statutory tax rate Concept (Percent) For Period ifrs-full:ApplicableTaxRate
1221 Anticipated income tax at statutory rates Concept (Monetary) For Period Debit ifrs-full:TaxExpenseIncomeAtApplicableTaxRate
1222 Non-deductible expenditures Concept (Monetary) For Period Debit ifrs-full:TaxEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss
1223 Differences between Canadian and foreign tax rates Concept (Monetary) For Period Debit ifrs-full:TaxEffectOfForeignTaxRates
1224 Change in estimate Concept (Monetary) For Period Debit fsm:TaxEffectFromChangeInEstimates
1225 Effect of change in tax rates Concept (Monetary) For Period Debit ifrs-full:TaxEffectFromChangeInTaxRate
1226 Inflation adjustment Concept (Monetary) For Period Credit fsm:TaxEffectFromInflationAdjustments
1227 Impact of foreign exchange Concept (Monetary) For Period Debit fsm:TaxEffectFromForeignExchangeRates
1228 Change in deferred tax assets Concept (Monetary) For Period Debit fsm:TaxEffectOfChangeInUnrecognisedDeferredTaxAssets
1229 Mining taxes Concept (Monetary) For Period Debit fsm:TaxEffectRelatedToMiningTaxes
1230 Withholding taxes Concept (Monetary) For Period Debit fsm:TaxEffectRelatedToWithholdingTaxes
1231 Other items Concept (Monetary) For Period Debit ifrs-full:OtherTaxEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome
1232 Total tax expense Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
1233 Current income tax expense Concept (Monetary) For Period Debit ifrs-full:CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriods
1234 Deferred income tax expense Concept (Monetary) For Period Debit ifrs-full:DeferredTaxExpenseIncome
1235 42903 - Disclosure - Income Taxes (Schedule of Current and Deferred Taxes) (Details) Network

*

*

 http://www.fortunasilver.com/role/DisclosureIncomeTaxesScheduleOfCurrentAndDeferredTaxesDetails
1236 Implied Table Table

*

*

 implied:Table
1237 Income Taxes [abstract] Abstract fsm:IncomeTaxesAbstract
1238 Current taxes on profit for the year Concept (Monetary) For Period Debit ifrs-full:CurrentTaxExpenseIncome
1239 Changes in estimates related to prior years Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForCurrentTaxOfPriorPeriod
1240 Total current tax expense (income) and adjustments for current tax of prior periods Concept (Monetary) For Period Debit ifrs-full:CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriods
1241 Origination and reversal of temporary differences Concept (Monetary) For Period Debit ifrs-full:DeferredTaxExpenseIncomeRelatingToOriginationAndReversalOfTemporaryDifferences
1242 Changes in estimates related to prior years Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDeferredTaxOfPriorPeriods
1243 Effect of changes in tax rates Concept (Monetary) For Period Debit ifrs-full:DeferredTaxExpenseIncomeRelatingToTaxRateChangesOrImpositionOfNewTaxes
1244 Deferred tax expense (income) Concept (Monetary) For Period Debit ifrs-full:DeferredTaxExpenseIncome
1245 Total tax expense Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
1246 42904 - Disclosure - Income Taxes (Schedule of Deferred Tax Assets and Liabilities) (Details) Network

*

*

 http://www.fortunasilver.com/role/DisclosureIncomeTaxesScheduleOfDeferredTaxAssetsAndLiabilitiesDetails
1247 Disclosure of temporary difference, unused tax losses and unused tax credits [table] Table

*

*

 ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable
1248 Temporary difference, unused tax losses and unused tax credits [axis] Axis ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis
1249 Temporary difference, unused tax losses and unused tax credits [member] Member ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember
1250 Reclamation and closure cost obligation [member] Member fsm:ReclamationAndClosureCostObligationMember
1251 Carried forward tax loss [member] Member ifrs-full:UnusedTaxLossesMember
1252 Accounts payable and accrued liability [member] Member fsm:AccountsPayableAndAccruedLiabilityMember
1253 Deductibility of resource taxes [member] Member fsm:DeductibilityOfResourceTaxesMember
1254 Other deferred tax assets [member] Member fsm:OtherDeferredTaxAssetsMember
1255 Mineral Properties [member] Member ifrs-full:MiningPropertyMember
1256 Mining and foreign withholding taxes [member] Member fsm:MiningAndForeignWithholdingTaxesMember
1257 Equipment and Building [member] Member fsm:EquipmentAndBuildingMember
1258 Other deferred tax liabilities [member] Member fsm:OtherDeferredTaxLiabilitiesMember
1259 Disclosure of temporary difference, unused tax losses and unused tax credits [line items] LineItems ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems
1260 Deferred tax assets Concept (Monetary) As Of Debit ifrs-full:DeferredTaxAssets
1261 Deferred tax liabilities Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilities
1262 Net deferred tax liabilities Concept (Monetary) As Of Credit ifrs-full:NetDeferredTaxLiabilities
1263 Net deferred tax liabilities Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilityAsset
1264 Reconciliation of changes in deferred tax liability (asset) [abstract] Abstract ifrs-full:ReconciliationOfChangesInDeferredTaxLiabilityAssetAbstract
1265 Beginning balance Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilityAsset
1266 Deferred income tax expense through income statement Concept (Monetary) For Period ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss
1267 Ending balance Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilityAsset
1268 42905 - Disclosure - Income Taxes (Schedule of Unrecognized Deductible Temporary Difference and Unused Tax Losses) (Details) Network

*

*

 http://www.fortunasilver.com/role/DisclosureIncomeTaxesScheduleOfUnrecognizedDeductibleTemporaryDifferenceAndUnusedTaxLossesDetails
1269 Income Taxes [table] Table

*

*

 fsm:IncomeTaxesTable
1270 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
1271 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
1272 MEXICO Member country:MX
1273 PERU Member country:PE
1274 Income Taxes [line items] LineItems fsm:IncomeTaxesLineItems
1275 Non capital losses Concept (Monetary) As Of ifrs-full:UnusedTaxLossesForWhichNoDeferredTaxAssetRecognised
1276 Provision Concept (Monetary) As Of Debit fsm:UnusedTaxLossesRelatedToProvisionAndOther
1277 Share issue costs Concept (Monetary) As Of ifrs-full:UnusedTaxCreditsForWhichNoDeferredTaxAssetRecognised
1278 Mineral properties, plant and equipment Concept (Monetary) As Of Debit fsm:UnrecognizedTaxBenefitsRelatedToMineralPropertyPlantAndEquipment
1279 Capital losses Concept (Monetary) As Of Debit fsm:UnrecognizedTaxBenefitsCapitalLossCarryforwards
1280 Unrecognized deductible temporary differences Concept (Monetary) As Of Debit fsm:UnrecognizedTaxLossesDeductibleTemporaryDifferencesAndTaxCredits
1281 Temporary differences associated with investments in subsidiaries, branches and associates and interests in joint arrangements for which deferred tax liabilities have not been recognised Concept (Monetary) As Of ifrs-full:TemporaryDifferencesAssociatedWithInvestmentsInSubsidiariesBranchesAndAssociatesAndInterestsInJointVentures
1282 42906 - Disclosure - Income Taxes (Schedule of Tax Losses Expiry Dates) (Details) Network

*

*

 http://www.fortunasilver.com/role/DisclosureIncomeTaxesScheduleOfTaxLossesExpiryDatesDetails
1283 Income Taxes [table] Table

*

*

 fsm:IncomeTaxesTable
1284 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
1285 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
1286 CANADA Member country:CA
1287 ARGENTINA Member country:AR
1288 MEXICO Member country:MX
1289 PERU Member country:PE
1290 Range [axis] Axis ifrs-full:RangeAxis
1291 Ranges [member] Member ifrs-full:RangesMember
1292 Bottom of range [member] Member ifrs-full:BottomOfRangeMember
1293 Top of range [member] Member ifrs-full:TopOfRangeMember
1294 Income Taxes [line items] LineItems fsm:IncomeTaxesLineItems
1295 Year of Expiry Concept (Year) For Period fsm:ExpiryYearOfTaxLossCarryforwards
1296 Unused tax losses for which no deferred tax asset recognised Concept (Monetary) As Of ifrs-full:UnusedTaxLossesForWhichNoDeferredTaxAssetRecognised
1297 43001 - Disclosure - Segment Information (Schedule of Segment Information) (Details) Network

*

*

 http://www.fortunasilver.com/role/DisclosureSegmentInformationScheduleOfSegmentInformationDetails
1298 Disclosure of operating segments [table] Table

*

*

 ifrs-full:DisclosureOfOperatingSegmentsTable
1299 Segments [axis] Axis ifrs-full:SegmentsAxis
1300 Segments [member] Member ifrs-full:SegmentsMember
1301 Reportable segments [member] Member ifrs-full:ReportableSegmentsMember
1302 Bateas Reporting Segment [member] Member fsm:BateasReportingSegmentMember
1303 Cuzcatlan Reporting Segment [member] Member fsm:CuzcatlanReportingSegmentMember
1304 Mansfield Reporting [Member] Member fsm:MansfieldReportingMember
1305 Corporate Segment [Member] Member fsm:CorporateSegmentMember
1306 Disclosure of operating segments [line items] LineItems ifrs-full:DisclosureOfOperatingSegmentsLineItems
1307 Sales/Revenue to/from external customers Concept (Monetary) For Period Credit ifrs-full:Revenue
1308 Cost of sales before depreciation and depletion Concept (Monetary) For Period Debit fsm:CostOfSalesBeforeDepreciationAndDepletion
1309 Depreciation and depletion in cost of sales Concept (Monetary) For Period Debit ifrs-full:DepreciationAndAmortisationExpense
1310 Selling, general and administration Concept (Monetary) For Period Debit ifrs-full:SellingGeneralAndAdministrativeExpense
1311 Impairment reversal (note 14) Concept (Monetary) For Period ifrs-full:ReversalOfImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment
1312 Other expense (income) Concept (Monetary) For Period Credit fsm:OtherIncomeAndExpenses
1313 Finance items Concept (Monetary) For Period Credit fsm:FinancialIncomeExpenseTotal
1314 Income before Taxes Concept (Monetary) For Period Credit ifrs-full:ProfitLossBeforeTax
1315 Total tax expense Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
1316 Net income for the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
1317 Assets Concept (Monetary) As Of Debit ifrs-full:Assets
1318 Liabilities Concept (Monetary) As Of Credit ifrs-full:Liabilities
1319 Capital Expenditure Concept (Monetary) For Period Credit ifrs-full:PaymentsForDevelopmentProjectExpenditure
1320 43101 - Disclosure - Fair Value Measurements (Schedule of Fair Value of Financial Instruments) (Details) Network

*

*

 http://www.fortunasilver.com/role/DisclosureFairValueMeasurementsScheduleOfFairValueOfFinancialInstrumentsDetails
1321 Disclosure Of Fair Value Measurement Of Assets And Liabilities [table] Table

*

*

 fsm:DisclosureOfFairValueMeasurementOfAssetsAndLiabilitiesTable
1322 Measurement [axis] Axis ifrs-full:MeasurementAxis
1323 Aggregated measurement [member] Member ifrs-full:AggregatedMeasurementMember
1324 At fair value [member] Member ifrs-full:AtFairValueMember
1325 Not measured at fair value in statement of financial position but for which fair value is disclosed [member] Member ifrs-full:NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember
1326 Classes of assets [axis] Axis ifrs-full:ClassesOfAssetsAxis
1327 Assets [member] Member ifrs-full:ClassesOfAssetsMember
1328 Marketable Securities - Shares [member] Member ifrs-full:TradingEquitySecuritiesMember
1329 Marketable Securities - Warrants [member] Member ifrs-full:OtherEquitySecuritiesMember
1330 Trade Receivables Concentrate Sales [member] Member fsm:TradeReceivablesConcentrateSalesMember
1331 Cash and Cash Equivalent [member] Member fsm:CashAndCashEquivalentFairValueMember
1332 Term Deposits [member] Member ifrs-full:DebtSecuritiesMember
1333 Other Receivables [member] Member fsm:OtherReceivablesMember
1334 Classes of liabilities [axis] Axis ifrs-full:ClassesOfLiabilitiesAxis
1335 Liabilities [member] Member ifrs-full:LiabilitiesMember
1336 Trade Payables [member] Member fsm:TradePayablesMember
1337 Payroll Payable [member] Member fsm:PayrollPayableMember
1338 Share Units Payable [member] Member fsm:ShareUnitsPayableMember
1339 Finance Lease Obligations [member] Member fsm:FinanceLeaseObligationsMember
1340 Bank Loan Payable [member] Member fsm:BankLoanPayableMember
1341 Other Payables [member] Member fsm:OtherPayablesMember
1342 Levels of fair value hierarchy [axis] Axis ifrs-full:LevelsOfFairValueHierarchyAxis
1343 All levels of fair value hierarchy [member] Member ifrs-full:AllLevelsOfFairValueHierarchyMember
1344 Level 1 of fair value hierarchy [member] Member ifrs-full:Level1OfFairValueHierarchyMember
1345 Level 2 of fair value hierarchy [member] Member ifrs-full:Level2OfFairValueHierarchyMember
1346 Categories of financial assets [axis] Axis ifrs-full:CategoriesOfFinancialAssetsAxis
1347 Financial assets, category [member] Member ifrs-full:FinancialAssetsCategoryMember
1348 Financial assets available-for-sale, category [member] Member ifrs-full:FinancialAssetsAvailableforsaleCategoryMember
1349 Financial assets at fair value through profit or loss, category [member] Member ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember
1350 Financial assets at fair value hedging, category [member] Member fsm:FinancialAssetsAtFairValueHedgingCategoryMember
1351 Financial assets at amortised cost, category [member] Member ifrs-full:FinancialAssetsAtAmortisedCostCategoryMember
1352 Loans and receivables, category [member] Member ifrs-full:LoansAndReceivablesCategoryMember
1353 Categories of financial liabilities [axis] Axis ifrs-full:CategoriesOfFinancialLiabilitiesAxis
1354 Financial liabilities, category [member] Member ifrs-full:FinancialLiabilitiesCategoryMember
1355 Financial liabilities at amortised cost, category [member] Member ifrs-full:FinancialLiabilitiesAtAmortisedCostCategoryMember
1356 Financial other liabilities, category [member] Member fsm:FinancialOtherLiabilitiesCategoryMember
1357 Financial liabilities at fair value through profit or loss, category [member] Member ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember
1358 Classes of financial assets [axis] Axis ifrs-full:ClassesOfFinancialAssetsAxis
1359 Financial assets, class [member] Member ifrs-full:FinancialAssetsMember
1360 Derivatives [member] Member ifrs-full:DerivativesMember
1361 Swap contract [member] Member ifrs-full:SwapContractMember
1362 Interest rate swap contract [member] Member ifrs-full:InterestRateSwapContractMember
1363 Forward contract [member] Member ifrs-full:ForwardContractMember
1364 Metal forward sales contract [member] Member fsm:MetalForwardSalesContractMember
1365 Disclosure Of Fair Value Measurement Of Assets And Liabilities [line items] LineItems fsm:DisclosureOfFairValueMeasurementOfAssetsAndLiabilitiesLineItems
1366 Financial assets Concept (Monetary) As Of Debit ifrs-full:FinancialAssets
1367 Financial assets, at fair value Concept (Monetary) As Of Debit ifrs-full:FinancialAssetsAtFairValue
1368 Financial liabilities Concept (Monetary) As Of Credit ifrs-full:FinancialLiabilities
1369 Financial liabilities, at fair value Concept (Monetary) As Of Credit ifrs-full:FinancialLiabilitiesAtFairValue
1370 43201 - Disclosure - Management of Financial Risk (Schedule of Company's Maximum Exposure to Credit Risk) (Details) Network

*

*

 http://www.fortunasilver.com/role/DisclosureManagementOfFinancialRiskScheduleOfCompanySMaximumExposureToCreditRiskDetails
1371 Disclosure of nature and extent of risks arising from financial instruments [table] Table

*

*

 ifrs-full:DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsTable
1372 Types of risks [axis] Axis ifrs-full:TypesOfRisksAxis
1373 Risks [member] Member ifrs-full:TypesOfRisksMember
1374 Credit risk [member] Member ifrs-full:CreditRiskMember
1375 Disclosure of nature and extent of risks arising from financial instruments [line items] LineItems ifrs-full:DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsLineItems
1376 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
1377 Short term investments Concept (Monetary) As Of Debit ifrs-full:CurrentInvestments
1378 Marketable securities Concept (Monetary) As Of Debit ifrs-full:CurrentFinancialAssetsAvailableforsale
1379 Derivative assets Concept (Monetary) As Of Debit ifrs-full:DerivativeFinancialAssets
1380 Accounts receivable and other assets Concept (Monetary) As Of Debit ifrs-full:TradeAndOtherCurrentReceivables
1381 Income tax receivable Concept (Monetary) As Of Debit ifrs-full:CurrentTaxAssetsCurrent
1382 Other non-current receivables Concept (Monetary) As Of Debit ifrs-full:OtherNoncurrentReceivables
1383 Total financial assets Concept (Monetary) As Of Debit ifrs-full:FinancialAssets
1384 43202 - Disclosure - Management of Financial Risk (Schedule of Company's Liquidity Risk) (Details) Network

*

*

 http://www.fortunasilver.com/role/DisclosureManagementOfFinancialRiskScheduleOfCompanySLiquidityRiskDetails
1385 Disclosure of nature and extent of risks arising from financial instruments [table] Table

*

*

 ifrs-full:DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsTable
1386 Types of risks [axis] Axis ifrs-full:TypesOfRisksAxis
1387 Risks [member] Member ifrs-full:TypesOfRisksMember
1388 Liquidity risk [member] Member ifrs-full:LiquidityRiskMember
1389 Maturity [axis] Axis ifrs-full:MaturityAxis
1390 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
1391 Not later than one year [member] Member ifrs-full:NotLaterThanOneYearMember
1392 Later than one year [member] Member ifrs-full:LaterThanOneYearMember
1393 Later than one year and not later than five years [member] Member ifrs-full:LaterThanOneYearAndNotLaterThanFiveYearsMember
1394 Later than one year and not later than three years [member] Member ifrs-full:LaterThanOneYearAndNotLaterThanThreeYearsMember
1395 Later than three years and not later than five years [member] Member ifrs-full:LaterThanThreeYearsAndNotLaterThanFiveYearsMember
1396 Later than five years [member] Member ifrs-full:LaterThanFiveYearsMember
1397 Disclosure of nature and extent of risks arising from financial instruments [line items] LineItems ifrs-full:DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsLineItems
1398 Trade and other payables Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherPayablesUndiscountedCashFlows
1399 Credit facility Concept (Monetary) As Of Credit fsm:CreditFacilityUndiscountedCashFlows
1400 Bank loan Concept (Monetary) As Of Credit ifrs-full:BankBorrowingsUndiscountedCashFlows
1401 Derivative liabilities Concept (Monetary) As Of Credit ifrs-full:DerivativeFinancialLiabilities
1402 Income tax payable Concept (Monetary) As Of Credit fsm:IncomeTaxPayableUndiscountedCashFlows
1403 Equipment loan Concept (Monetary) As Of Credit fsm:EquipmentLoanUndiscountedCashFlows
1404 Finance lease obligations Concept (Monetary) As Of Credit ifrs-full:FinanceLeaseLiabilities
1405 Other liabilities Concept (Monetary) As Of Credit ifrs-full:OtherNoncurrentLiabilities
1406 Operating leases Concept (Monetary) As Of Credit ifrs-full:GrossLeaseLiabilities
1407 Capital commitments, Lindero Concept (Monetary) As Of Credit ifrs-full:CapitalCommitments
1408 Provisions Concept (Monetary) As Of Credit ifrs-full:Provisions
1409 Total financial liabilities Concept (Monetary) As Of Credit ifrs-full:FinancialLiabilities
1410 43203 - Disclosure - Management of Financial Risk (Disclosure of Nature and Extent Arising from Financial Instruments - Currency Risk) (Details) Network

*

*

 http://www.fortunasilver.com/role/DisclosureManagementOfFinancialRiskDisclosureOfNatureAndExtentArisingFromFinancialInstrumentsCurrencyRiskDetails
1411 Disclosure of nature and extent of risks arising from financial instruments [table] Table

*

*

 ifrs-full:DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsTable
1412 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
1413 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
1414 CANADA Member country:CA
1415 PERU Member country:PE
1416 MEXICO Member country:MX
1417 ARGENTINA Member country:AR
1418 Assets and liabilities [axis] Axis ifrs-full:AssetsAndLiabilitiesAxis
1419 Assets and liabilities [member] Member ifrs-full:AssetsAndLiabilitiesMember
1420 Cash and Cash Equivalent [member] Member fsm:CashEquivalentsAndCashMember
1421 Marketable Securities [member] Member fsm:MarketableSecuritiesMember
1422 Accounts Receivable and Other Assets [member] Member fsm:AccountsReceivableAndOtherAssetsMember
1423 Income Tax Receivable [member] Member fsm:IncomeTaxReceivableMember
1424 Investments In Associate [member] Member fsm:InvestmentsInAssociateMember
1425 Trade and Other Payables [member] Member fsm:TradeAndOtherPayablesMember
1426 Due to Related Party [member] Member fsm:DueToRelatedPartyMember
1427 Provisions Current [member] Member fsm:ProvisionsCurrentMember
1428 Income Tax Payable [member] Member fsm:IncomeTaxPayableMember
1429 Other Liabilities [member] Member fsm:LiabilitiesOtherMember
1430 Provisions Noncurrent [member] Member fsm:ProvisionsNoncurrentMember
1431 Disclosure of nature and extent of risks arising from financial instruments [line items] LineItems ifrs-full:DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsLineItems
1432 Foreign exchange exposure on assets Concept (Monetary) As Of Debit fsm:ForeignExchangeExposureOnAssets
1433 Foreign exchange exposure on liabilities Concept (Monetary) As Of Credit fsm:ForeignExchangeExposureOnLiabilities
1434 Foreign exposure on asset (liabilities), net Concept (Monetary) As Of Debit fsm:ForeignExposureOnAssetLiabilitiesNet
1435 Effect of Foreign denominated items Concept (Monetary) For Period Debit fsm:PercentageChangeEffectOnForeignDenominatedItemsAmount
1436 Change percentage, currency Concept (Percent) For Period fsm:PercentageChangeOnForeignDenominatedItemsPercentage
1437 43204 - Disclosure - Management of Financial Risk (Disclosure of Nature and Extent Arising from Financial Instruments - Commodity Price Risk) (Details) Network

*

*

 http://www.fortunasilver.com/role/DisclosureManagementOfFinancialRiskDisclosureOfNatureAndExtentArisingFromFinancialInstrumentsCommodityPriceRiskDetails
1438 Disclosure of nature and extent of risks arising from financial instruments [table] Table

*

*

 ifrs-full:DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsTable
1439 Type of Commodity [axis] Axis fsm:TypeOfCommodityAxis
1440 Type of Commodity [member] Member fsm:TypeOfCommodityMember
1441 Gold Commodity Type [member] Member fsm:GoldCommodityTypeMember
1442 Silver Commodity Type [member] Member fsm:SilverCommodityTypeMember
1443 Lead Commodity [member] Member fsm:LeadCommodityMember
1444 Zinc Commodity [member] Member fsm:ZincCommodityMember
1445 Types of risks [axis] Axis ifrs-full:TypesOfRisksAxis
1446 Risks [member] Member ifrs-full:TypesOfRisksMember
1447 Market risk [member] Member ifrs-full:MarketRiskMember
1448 Other price risk [member] Member ifrs-full:OtherPriceRiskMember
1449 Commodity price risk [member] Member ifrs-full:CommodityPriceRiskMember
1450 Disclosure of nature and extent of risks arising from financial instruments [line items] LineItems ifrs-full:DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsLineItems
1451 Effect on Sales Concept (Monetary) For Period Debit fsm:PercentagePriceChangeEffectOnSalesAmount
1452 Change percentage, commodity Concept (Percent) For Period fsm:PercentageChangeOnCommodityPricePercentage
1453 Aggregate quantity of zero cost collars Concept (num:weightItemType) As Of fsm:AggregateQuantityOfZeroCostCollars
1454 Floor Price Concept (Per Unit) As Of fsm:FloorPrice
1455 Cap Price Concept (Per Unit) As Of fsm:CapPrice
1456 43205 - Disclosure - Management of Financial Risk (Capital Management) (Details) Network

*

*

 http://www.fortunasilver.com/role/DisclosureManagementOfFinancialRiskCapitalManagementDetails
1457 Implied Table Table

*

*

 implied:Table
1458 Management of Financial Risk [abstract] Abstract ifrs-full:DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsAbstract
1459 Equity Concept (Monetary) As Of Credit ifrs-full:Equity
1460 Credit facilities Concept (Monetary) As Of Credit ifrs-full:NoncurrentPortionOfNoncurrentSecuredBankLoansReceived
1461 Equipment financing obligations Concept (Monetary) As Of Credit fsm:EquipmentFinancingObligations
1462 Less: Cash, cash equivalents and short-term investments Concept (Monetary) As Of Debit fsm:CashAndCashEquivalentsAndShortTermInvestment
1463 Capital amount Concept (Monetary) As Of Credit fsm:CapitalAmount
1464 43301 - Disclosure - Supplemental Cashflow Information (Schedule of Changes in Liabilities Arising from Financing Activities) (Details) Network

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*

 http://www.fortunasilver.com/role/DisclosureSupplementalCashflowInformationScheduleOfChangesInLiabilitiesArisingFromFinancingActivitiesDetails
1465 Disclosure of reconciliation of liabilities arising from financing activities [table] Table

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*

 ifrs-full:DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesTable
1466 Liabilities arising from financing activities [axis] Axis ifrs-full:LiabilitiesArisingFromFinancingActivitiesAxis
1467 Liabilities arising from financing activities [member] Member ifrs-full:LiabilitiesArisingFromFinancingActivitiesMember
1468 Bank Loan Member ifrs-full:LongtermBorrowingsMember
1469 Loan and lease obligation Member ifrs-full:LeaseLiabilitiesMember
1470 Interest rate swaps Member ifrs-full:AssetsHeldToHedgeLiabilitiesArisingFromFinancingActivitiesMember
1471 Disclosure of reconciliation of liabilities arising from financing activities [line items] LineItems ifrs-full:DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesLineItems
1472 Liabilities arising from financing activities at beginning of period Concept (Monetary) As Of Credit ifrs-full:LiabilitiesArisingFromFinancingActivities
1473 Transaction cost Concept (Monetary) For Period Debit fsm:PaymentOfTransactionCost
1474 Loss on debt modifications Concept (Monetary) For Period Credit fsm:GainLossOnDebtModifications
1475 Amortization of transaction costs Concept (Monetary) For Period Credit fsm:IncreaseThroughAmortizationOfTransactionCosts
1476 Principal payments Concept (Monetary) For Period Debit fsm:DecreaseThroughPrincipalPayments
1477 Additions included as current Concept (Monetary) For Period Credit fsm:IncreaseThroughNewLoansOrLeasesLiabilitiesArisingFromFinancingActivitiesCurrent
1478 Additions included as non-current Concept (Monetary) For Period Credit fsm:IncreaseThroughNewLoansOrLeasesLiabilitiesArisingFromFinancingActivitiesNonCurrent
1479 Interest accrued Concept (Monetary) For Period Debit fsm:DecreaseThroughRelatedToAccruedInterest
1480 Settlement of the swap Concept (Monetary) For Period Credit fsm:IncreaseThroughSettlementOfSwap
1481 Change in fair value Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughChangesInFairValuesLiabilitiesArisingFromFinancingActivities
1482 Liabilities arising from financing activities at end of period Concept (Monetary) As Of Credit ifrs-full:LiabilitiesArisingFromFinancingActivities
1483 43401 - Disclosure - Contingencies and Capital Commitments (Narrative) (Details) Network

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*

 http://www.fortunasilver.com/role/DisclosureContingenciesAndCapitalCommitmentsNarrativeDetails
1484 Disclosure of other provisions [table] Table

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*

 ifrs-full:DisclosureOfOtherProvisionsTable
1485 Classes of other provisions [axis] Axis ifrs-full:ClassesOfProvisionsAxis
1486 Other provisions [member] Member ifrs-full:OtherProvisionsMember
1487 Provision for credit commitments [member] Member ifrs-full:ProvisionForCreditCommitmentsMember
1488 Classes of property, plant and equipment [axis] Axis ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
1489 Property, plant and equipment [member] Member ifrs-full:PropertyPlantAndEquipmentMember
1490 Mining assets [member] Member ifrs-full:MiningAssetsMember
1491 Mineral Properties [member] Member ifrs-full:MiningPropertyMember
1492 Lindero Project [member] Member fsm:LinderoProjectMember
1493 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
1494 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
1495 MEXICO Member country:MX
1496 PERU Member country:PE
1497 Classes of contingent liabilities [axis] Axis ifrs-full:ClassesOfContingentLiabilitiesAxis
1498 Contingent liabilities [member] Member ifrs-full:ContingentLiabilitiesMember
1499 Tax contingent liability [member] Member ifrs-full:TaxContingentLiabilityMember
1500 Disclosure of other provisions [line items] LineItems ifrs-full:DisclosureOfOtherProvisionsLineItems
1501 Undiscounted closure costs Concept (Monetary) For Period Debit fsm:UndiscountedClosureCosts
1502 Progressive closure activities Concept (Monetary) For Period Debit fsm:ProgressiveClosureActivities
1503 Final closure activities Concept (Monetary) For Period Debit fsm:FinalClosureActivities
1504 Post closure activities Concept (Monetary) For Period Debit fsm:PostClosureActivities
1505 Guarantees with government current year Concept (Monetary) As Of Credit fsm:GuaranteesWithGovernmentCurrentYear
1506 Guarantees with government next year Concept (Monetary) As Of Credit fsm:GuaranteesWithGovernmentNextYear
1507 Guarantees with government in two years Concept (Monetary) As Of Credit fsm:GuaranteesWithGovernmentInTwoYears
1508 Bank letter of guarantee Concept (Monetary) As Of Credit fsm:BankLetterOfGuarantee
1509 Capital commitments Concept (Monetary) As Of Credit ifrs-full:CapitalCommitments
1510 Tax expense (income) Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
1511 Income tax interest and penalties Concept (Monetary) For Period Debit fsm:IncomeTaxInterestAndPenalties
1512 SGM Royalty (as percentage) Concept (Percent) For Period fsm:PercentageOfRoyalty
1513 Income tax expense, interest and penalties, accrued Concept (Monetary) For Period Debit fsm:AccruedIncomeTaxExpenseAndInterestAndPenalties
1514 Tax benefit assessment Concept (Monetary) For Period Credit ifrs-full:TaxBenefitArisingFromPreviouslyUnrecognisedTaxLossTaxCreditOrTemporaryDifferenceOfPriorPeriodUsedToReduceCurrentTaxExpense
1515 General import tax Concept (Monetary) For Period Debit ifrs-full:DistributionCosts
1516 Value added tax payables Concept (Monetary) As Of Credit ifrs-full:ValueAddedTaxPayables
1517 Custom management tax Concept (Monetary) For Period Debit fsm:CustomManagementTax
1518 Tax fines Concept (Monetary) For Period Debit fsm:TaxFines
1519 Tax effect security bond Concept (Monetary) As Of Credit fsm:TaxEffectSecurityBond
1520 43402 - Disclosure - Contingencies and Capital Commitments (Schedule of Operating Lease Payments) (Details) Network

*

*

 http://www.fortunasilver.com/role/DisclosureContingenciesAndCapitalCommitmentsScheduleOfOperatingLeasePaymentsDetails
1521 Disclosure of finance lease and operating lease by lessee [table] Table

*

*

 ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeTable
1522 Maturity [axis] Axis ifrs-full:MaturityAxis
1523 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
1524 Not later than one year [member] Member ifrs-full:NotLaterThanOneYearMember
1525 Later than one year [member] Member ifrs-full:LaterThanOneYearMember
1526 Later than one year and not later than five years [member] Member ifrs-full:LaterThanOneYearAndNotLaterThanFiveYearsMember
1527 Later than one year and not later than three years [member] Member ifrs-full:LaterThanOneYearAndNotLaterThanThreeYearsMember
1528 Later than three years and not later than five years [member] Member ifrs-full:LaterThanThreeYearsAndNotLaterThanFiveYearsMember
1529 Classes of assets [axis] Axis ifrs-full:ClassesOfAssetsAxis
1530 Assets [member] Member ifrs-full:ClassesOfAssetsMember
1531 Office Premises [Member] Member fsm:OfficePremisesMember
1532 Computer equipment [member] Member ifrs-full:ComputerEquipmentMember
1533 Disclosure of finance lease and operating lease by lessee [line items] LineItems ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeLineItems
1534 Lease payment Concept (Monetary) As Of Credit ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease

*

*