Telesat Canada (SEC Filing Page | XBRL Cloud Viewer | XBRL Instance)

Line Label Object Class Period Type Balance Report ElementName
1 00000001 - Document - Document and Entity Information Network

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 http://telesat.com/role/DocumentAndEntityInformation
2 Disclosure of classes of share capital [table] Table

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 ifrs-full:DisclosureOfClassesOfShareCapitalTable
3 Classes of share capital [axis] Axis ifrs-full:ClassesOfShareCapitalAxis
4 Share capital [member] Member ifrs-full:ClassesOfShareCapitalMember
5 Voting Participating Preferred Shares [Member] Member telesat:VotingParticipatingPreferredSharesMember
6 Non-Voting Participating Preferred Shares [Member] Member telesat:NonVotingParticipatingPreferredSharesMember
7 Director Voting Participating Preferred Shares [Member] Member telesat:DirectorVotingParticipatingPreferredSharesMember
8 Common Stock [Member] Member telesat:CommonStocksMember
9 Disclosure of classes of share capital [line items] LineItems ifrs-full:DisclosureOfClassesOfShareCapitalLineItems
10 Entity Registrant Name Concept (Text/String) For Period dei:EntityRegistrantName
11 Entity Central Index Key Concept (CIK Number) For Period dei:EntityCentralIndexKey
12 Document Type Concept (Submission Type) For Period dei:DocumentType
13 Document Period End Date Concept (Date) For Period dei:DocumentPeriodEndDate
14 Amendment Flag Concept (Yes/No) For Period dei:AmendmentFlag
15 Current Fiscal Year End Date Concept (Month/Day) For Period dei:CurrentFiscalYearEndDate
16 Entity a Well-known Seasoned Issuer Concept (Yes/No) For Period dei:EntityWellKnownSeasonedIssuer
17 Entity a Voluntary Filer Concept (Yes/No) For Period dei:EntityVoluntaryFilers
18 Entity Reporting Status Current Concept (Yes/No) For Period dei:EntityCurrentReportingStatus
19 Entity Filer Category Concept (Filer Category) For Period dei:EntityFilerCategory
20 Entity Emerging Growth Company Concept (Yes/No) For Period dei:EntityEmergingGrowthCompany
21 Entity Ex Transition Period Concept (Yes/No) For Period dei:EntityExTransitionPeriod
22 Entity Shell Company Concept (Yes/No) For Period dei:EntityShellCompany
23 Entity Public Float Concept (Monetary) As Of Credit dei:EntityPublicFloat
24 Entity Common Stock, Shares Outstanding Concept (Shares) As Of dei:EntityCommonStockSharesOutstanding
25 Document Fiscal Period Focus Concept (Fiscal Period) For Period dei:DocumentFiscalPeriodFocus
26 Document Fiscal Year Focus Concept (Year) For Period dei:DocumentFiscalYearFocus
27 00000002 - Statement - Consolidated Statements of (Loss) Income Network

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 http://telesat.com/role/StatementsOfLossIncome
28 Implied Table Table

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29 Profit or loss [abstract] Abstract ifrs-full:IncomeStatementAbstract
30 Revenue Concept (Monetary) For Period Credit ifrs-full:Revenue
31 Operating expenses Concept (Monetary) For Period Debit ifrs-full:OperatingExpense
32 Net revenue Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromOperatingActivities
33 Depreciation Concept (Monetary) For Period Debit ifrs-full:DepreciationExpense
34 Amortization Concept (Monetary) For Period Debit ifrs-full:AmortisationExpense
35 Other operating gains (losses), net Concept (Monetary) For Period Debit ifrs-full:MiscellaneousOtherOperatingExpense
36 Operating income Concept (Monetary) For Period Credit ifrs-full:RevenueAndOperatingIncome
37 Interest expense Concept (Monetary) For Period Debit ifrs-full:InterestExpense
38 Loss on refinancing Concept (Monetary) For Period Debit ifrs-full:FinanceCosts
39 Interest and other income Concept (Monetary) For Period Credit ifrs-full:InterestIncomeOnCashAndCashEquivalents
40 (Loss) gain on changes in fair value of financial instruments Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLoss
41 (Loss) gain on foreign exchange Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss
42 (Loss) income before tax Concept (Monetary) For Period Credit ifrs-full:ProfitLossBeforeTax
43 Tax expense Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
44 Net (loss) income Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
45 00000003 - Statement - Consolidated Statements of Comprehensive (Loss) Income Network

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46 Implied Table Table

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47 Profit or loss [abstract] Abstract ifrs-full:IncomeStatementAbstract
48 Net (loss) income Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
49 Other comprehensive income (loss) Abstract ifrs-full:OtherComprehensiveIncomeAbstract
50 Items that may be reclassified into profit or loss Abstract ifrs-full:ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract
51 Foreign currency translation adjustments Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnChangeInValueOfForeignCurrencyBasisSpreadsNetOfTax
52 Items that will not be reclassified into profit or loss Abstract ifrs-full:ComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTaxAbstract
53 Actuarial gains (losses) on employee benefit plans Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans
54 Tax (expense) recovery Concept (Monetary) For Period ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome
55 Other comprehensive income (loss) Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncome
56 Total comprehensive (loss) income Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncome
57 00000004 - Statement - Consolidated Statements of Changes in Shareholders' Equity Network

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 http://telesat.com/role/StatementsOfChangesInShareholdersEquity
58 Statement of changes in equity [table] Table

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 ifrs-full:StatementOfChangesInEquityTable
59 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
60 Equity [member] Member ifrs-full:EquityMember
61 Common shares [Member] Member ifrs-full:OrdinarySharesMember
62 Preferred shares [Member] Member ifrs-full:PreferenceSharesMember
63 Total share capital [Member] Member ifrs-full:IssuedCapitalMember
64 Accumulated earnings [Member] Member ifrs-full:RetainedEarningsMember
65 Equity-settled employee benefits reserve [Member] Member ifrs-full:ReserveOfRemeasurementsOfDefinedBenefitPlansMember
66 Foreign currency translation reserve [Member] Member ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember
67 Total reserves [Member] Member ifrs-full:OtherReservesMember
68 Statement of changes in equity [line items] LineItems ifrs-full:StatementOfChangesInEquityLineItems
69 Changes in equity [Roll Forward] Abstract ifrs-full:ChangesInEquityAbstract
70 Balance as at beginning Concept (Monetary) As Of Credit ifrs-full:Equity
71 Net (loss) income Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
72 Dividends declared on preferred shares Concept (Monetary) For Period Debit ifrs-full:DividendsPaid
73 Return of capital Concept (Monetary) For Period Debit telesat:ReturnOfCapital
74 Repurchase of stock options Concept (Monetary) For Period Debit ifrs-full:PurchaseOfTreasuryShares
75 Issuance of share capital on exercise of stock appreciation rights Concept (Monetary) For Period Credit ifrs-full:IssueOfEquity
76 Cumulative effect adjustment Concept (Monetary) For Period Debit telesat:CumulativeEffectAdjustment
77 Other comprehensive income (loss), net of tax (expense) recovery of $(1,424), $673 and $(2031) for the year ended December 31, 2016, 2017 and 2018, respectively Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncome
78 Share-based compensation Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions
79 Balance as at end Concept (Monetary) As Of Credit ifrs-full:Equity
80 00000005 - Statement - Consolidated Statements of Changes in Shareholders' Equity (Parenthetical) Network

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 http://telesat.com/role/StatementsOfChangesInShareholdersEquityParenthetical
81 Implied Table Table

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82 Statement of changes in equity [abstract] Abstract ifrs-full:StatementOfChangesInEquityAbstract
83 Other comprehensive income (loss) income tax (expense) recovery Concept (Monetary) For Period ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome
84 00000006 - Statement - Consolidated Balance Sheets Network

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 http://telesat.com/role/BalanceSheets
85 Implied Table Table

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86 Statement of financial position [abstract] Abstract ifrs-full:StatementOfFinancialPositionAbstract
87 Assets Abstract ifrs-full:AssetsAbstract
88 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
89 Trade and other receivables Concept (Monetary) As Of Debit ifrs-full:TradeAndOtherCurrentReceivables
90 Other current financial assets Concept (Monetary) As Of Debit ifrs-full:OtherCurrentFinancialAssets
91 Prepaid expenses and other current assets Concept (Monetary) As Of Debit ifrs-full:CurrentPrepaymentsAndOtherCurrentAssets
92 Total current assets Concept (Monetary) As Of Debit ifrs-full:CurrentAssets
93 Satellites, property and other equipment Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
94 Deferred tax assets Concept (Monetary) As Of Debit ifrs-full:DeferredTaxAssets
95 Other long-term financial assets Concept (Monetary) As Of Debit ifrs-full:OtherNoncurrentFinancialAssets
96 Other long-term assets Concept (Monetary) As Of Debit ifrs-full:OtherNoncurrentAssets
97 Intangible assets Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsOtherThanGoodwill
98 Goodwill Concept (Monetary) As Of Debit ifrs-full:Goodwill
99 Total assets Concept (Monetary) As Of Debit ifrs-full:Assets
100 Liabilities Abstract ifrs-full:LiabilitiesAbstract
101 Trade and other payables Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherCurrentPayables
102 Other current financial liabilities Concept (Monetary) As Of Credit ifrs-full:OtherCurrentFinancialLiabilities
103 Other current liabilities Concept (Monetary) As Of Credit ifrs-full:OtherCurrentLiabilities
104 Current indebtedness Concept (Monetary) As Of Credit ifrs-full:CurrentPortionOfLongtermBorrowings
105 Total current liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentLiabilities
106 Long-term indebtedness Concept (Monetary) As Of Credit ifrs-full:LongtermBorrowings
107 Deferred tax liabilities Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilities
108 Other long-term financial liabilities Concept (Monetary) As Of Credit ifrs-full:OtherNoncurrentFinancialLiabilities
109 Other long-term liabilities Concept (Monetary) As Of Credit ifrs-full:OtherNoncurrentLiabilities
110 Total liabilities Concept (Monetary) As Of Credit ifrs-full:Liabilities
111 Shareholders' Equity Abstract ifrs-full:EquityAbstract
112 Share capital Concept (Monetary) As Of Credit ifrs-full:IssuedCapital
113 Accumulated earnings Concept (Monetary) As Of Credit ifrs-full:RetainedEarnings
114 Reserves Concept (Monetary) As Of Credit ifrs-full:CapitalReserve
115 Total shareholders' equity Concept (Monetary) As Of Credit ifrs-full:Equity
116 Total liabilities and shareholders' equity Concept (Monetary) As Of Credit ifrs-full:EquityAndLiabilities
117 00000007 - Statement - Consolidated Statements of Cash Flows Network

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 http://telesat.com/role/StatementsOfCashFlows
118 Implied Table Table

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119 Statement of cash flows [abstract] Abstract ifrs-full:StatementOfCashFlowsAbstract
120 Cash flows from operating activities Abstract ifrs-full:CashFlowsFromUsedInOperatingActivitiesAbstract
121 Net (loss) income Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
122 Adjustments to reconcile net (loss) income to cash flows from operating activities Abstract ifrs-full:AdjustmentsForReconcileProfitLossAbstract
123 Depreciation Concept (Monetary) For Period Debit ifrs-full:DepreciationExpense
124 Amortization Concept (Monetary) For Period Debit ifrs-full:AmortisationExpense
125 Tax expense Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
126 Interest expense Concept (Monetary) For Period Debit ifrs-full:InterestExpense
127 Interest income Concept (Monetary) For Period Credit ifrs-full:RevenueFromInterest
128 Loss (gain) on foreign exchange Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss
129 Loss (gain) on changes in fair value of financial instruments Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLoss
130 Share-based compensation Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForSharebasedPayments
131 Loss on disposal of assets Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForLossesGainsOnDisposalOfNoncurrentAssets
132 Loss on refinancing Concept (Monetary) For Period Debit ifrs-full:FinanceCosts
133 Other Concept (Monetary) For Period Debit ifrs-full:OtherAdjustmentsForNoncashItems
134 Income taxes paid, net of income taxes received Concept (Monetary) For Period Credit ifrs-full:IncomeTaxesPaidRefundClassifiedAsOperatingActivities
135 Interest paid, net of capitalized interest and interest received Concept (Monetary) For Period Credit ifrs-full:InterestPaidClassifiedAsOperatingActivities
136 Repurchase of stock options Concept (Monetary) For Period Credit telesat:RepurchaseOfStockOptions
137 Operating assets and liabilities Concept (Monetary) For Period Credit telesat:AdjustmentsForDecreaseIncreaseInOperatingAssetsAndLiabilities
138 Net cash from operating activities Concept (Monetary) For Period ifrs-full:CashFlowsFromUsedInOperatingActivities
139 Cash flows used in investing activities Abstract ifrs-full:CashFlowsFromUsedInInvestingActivitiesAbstract
140 Satellite programs, including capitalized interest Concept (Monetary) For Period Credit telesat:SatelliteProgramsIncludingCapitalizedInterest
141 Purchase of property and other equipment Concept (Monetary) For Period Credit ifrs-full:PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities
142 Purchase of intangible assets Concept (Monetary) For Period Credit ifrs-full:PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities
143 Net cash used in investing activities Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInInvestingActivities
144 Cash flows used in financing activities Abstract ifrs-full:CashFlowsFromUsedInFinancingActivitiesAbstract
145 Repayment of indebtedness Concept (Monetary) For Period Credit ifrs-full:RepaymentsOfBorrowingsClassifiedAsFinancingActivities
146 Proceeds from indebtedness Concept (Monetary) For Period Debit ifrs-full:ProceedsFromBorrowingsClassifiedAsFinancingActivities
147 Payment of debt issue costs Concept (Monetary) For Period Credit ifrs-full:PaymentsForDebtIssueCosts
148 Return of capital to shareholders Concept (Monetary) For Period Debit telesat:ReturnOfCapitalToShareholders
149 Capital lease payments Concept (Monetary) For Period Credit ifrs-full:PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities
150 Satellite performance incentive payments Concept (Monetary) For Period Credit telesat:SatellitePerformanceIncentivePayments
151 Settlement of derivatives Concept (Monetary) For Period Debit telesat:SettlementOfDerivatives
152 Proceeds from exercise of stock options Concept (Monetary) For Period Debit ifrs-full:ProceedsFromExerciseOfOptions
153 Dividends paid on preferred shares Concept (Monetary) For Period Credit ifrs-full:DividendsPaidClassifiedAsFinancingActivities
154 Net cash used in financing activities Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInFinancingActivities
155 Effect of changes in exchange rates on cash and cash equivalents Concept (Monetary) For Period Debit ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalents
156 Increase (decrease) in cash and cash equivalents Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseInCashAndCashEquivalents
157 Cash and cash equivalents, beginning of year Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
158 Cash and cash equivalents, end of year Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
159 00000008 - Disclosure - 1. BACKGROUND OF THE COMPANY Network

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160 Implied Table Table

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161 Background Of Company Abstract telesat:BackgroundOfCompanyAbstract
162 BACKGROUND OF THE COMPANY Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfGeneralInformationAboutFinancialStatementsExplanatory
163 00000009 - Disclosure - 2. BASIS OF PRESENTATION Network

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164 Implied Table Table

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165 Basis Of Presentation Abstract telesat:BasisOfPresentationAbstract
166 BASIS OF PRESENTATION Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfBasisOfPreparationOfFinancialStatementsExplanatory
167 00000010 - Disclosure - 3. CHANGES IN ACCOUNTING POLICIES Network

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168 Implied Table Table

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169 Changes In Accounting Policies Abstract telesat:ChangesInAccountingPoliciesAbstract
170 CHANGES IN ACCOUNTING POLICIES Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfChangesInAccountingPoliciesExplanatory
171 00000011 - Disclosure - 4. SIGNIFICANT ACCOUNTING POLICIES Network

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172 Implied Table Table

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173 Significant Accounting Policies Abstract telesat:SignificantAccountingPoliciesAbstract
174 SIGNIFICANT ACCOUNTING POLICIES Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfSummaryOfSignificantAccountingPoliciesExplanatory
175 00000012 - Disclosure - 5. CRITICAL ACCOUNTING JUDGMENTS AND ESTIMATES Network

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176 Implied Table Table

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177 Critical Accounting Judgments And Estimates Abstract telesat:CriticalAccountingJudgmentsAndEstimatesAbstract
178 CRITICAL ACCOUNTING JUDGMENTS AND ESTIMATES Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfAccountingJudgementsAndEstimatesExplanatory
179 00000013 - Disclosure - 6. SEGMENT INFORMATION Network

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180 Implied Table Table

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181 Segment Information Abstract telesat:SegmentInformationsAbstract
182 SEGMENT INFORMATION Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfEntitysReportableSegmentsExplanatory
183 00000014 - Disclosure - 7. OPERATING EXPENSES Network

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184 Implied Table Table

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185 Operating Expenses Abstract telesat:OperatingExpenseAbstract
186 OPERATING EXPENSES Concept (Text Block (HTML)) For Period telesat:DisclosureOfOperatingExpenses
187 00000015 - Disclosure - 8. OTHER OPERATING GAINS (LOSSES), NET Network

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188 Implied Table Table

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189 Other Operating Gains Losses Net Abstract telesat:OtherOperatingGainsLossesNetAbstract
190 OTHER OPERATING GAINS (LOSSES), NET Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOtherOperatingIncomeExpenseExplanatory
191 00000016 - Disclosure - 9. INTEREST EXPENSE Network

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192 Implied Table Table

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193 Interest Expense Abstract telesat:InterestExpense1Abstract
194 INTEREST EXPENSE Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfInterestExpenseExplanatory
195 00000017 - Disclosure - 10. INCOME TAXES Network

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196 Implied Table Table

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197 Income Taxes Abstract telesat:IncomeTaxesAbstract
198 INCOME TAXES Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfIncomeTaxExplanatory
199 00000018 - Disclosure - 11. TRADE AND OTHER RECEIVABLES Network

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200 Implied Table Table

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201 Trade and Other Receivables Abstract ifrs-full:TradeAndOtherReceivablesAbstract
202 TRADE AND OTHER RECEIVABLES Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfTradeAndOtherReceivablesExplanatory
203 00000019 - Disclosure - 12. OTHER CURRENT FINANCIAL ASSETS Network

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204 Implied Table Table

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205 Other Current Financial Assets Abstract telesat:OtherCurrentFinancialAssetsAbstract
206 OTHER CURRENT FINANCIAL ASSETS Concept (Text Block (HTML)) For Period telesat:DisclosureOfOtherCurrentFinancialAssets
207 00000020 - Disclosure - 13. PREPAID EXPENSES AND OTHER CURRENT ASSETS Network

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208 Implied Table Table

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209 Prepaid Expenses And Other Current Assets Abstract telesat:PrepaidExpenseAndOtherCurrentAssetsAbstract
210 PREPAID EXPENSES AND OTHER CURRENT ASSETS Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfPrepaymentsAndOtherAssetsExplanatory
211 00000021 - Disclosure - 14. OTHER LONG-TERM FINANCIAL ASSETS Network

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212 Implied Table Table

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213 Other Long-term Financial Assets Abstract telesat:OtherLongtermFinancialAssetsAbstract
214 OTHER LONG-TERM FINANCIAL ASSETS Concept (Text Block (HTML)) For Period telesat:DisclosureOfOtherLongtermFinancialAssets
215 00000022 - Disclosure - 15. OTHER LONG-TERM ASSETS Network

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216 Implied Table Table

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217 Other Long-term Assets Abstract telesat:OtherLongtermAssetsAbstract
218 OTHER LONG-TERM ASSETS Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOtherNoncurrentAssetsExplanatory
219 00000023 - Disclosure - 16. SATELLITES, PROPERTY AND OTHER EQUIPMENT Network

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 http://telesat.com/role/SatellitesPropertyAndOtherEquipment
220 Implied Table Table

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221 Satellites Property And Other Equipment Abstract telesat:SatellitesPropertyAndOtherEquipmentAbstract
222 SATELLITES, PROPERTY AND OTHER EQUIPMENT Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfPropertyPlantAndEquipmentExplanatory
223 00000024 - Disclosure - 17. INTANGIBLE ASSETS Network

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224 Implied Table Table

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225 Intangible Assets Abstract telesat:IntangibleAssetsAbstract
226 INTANGIBLE ASSETS Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfIntangibleAssetsExplanatory
227 00000025 - Disclosure - 18. GOODWILL Network

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228 Implied Table Table

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229 Goodwill Abstract telesat:GoodwillAbstract
230 GOODWILL Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfGoodwillExplanatory
231 00000026 - Disclosure - 19. TRADE AND OTHER PAYABLES Network

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232 Implied Table Table

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233 Trade And Other Payables Abstract ifrs-full:TradeAndOtherPayablesAbstract
234 TRADE AND OTHER PAYABLES Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfTradeAndOtherPayablesExplanatory
235 00000027 - Disclosure - 20. OTHER CURRENT FINANCIAL LIABILITIES Network

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236 Implied Table Table

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237 Other Current Financial Liabilities Abstract telesat:OtherCurrentFinancialLiabilitiesAbstract
238 OTHER CURRENT FINANCIAL LIABILITIES Concept (Text Block (HTML)) For Period telesat:DisclosureOfOtherCurrentFinancialLiabilities
239 00000028 - Disclosure - 21. OTHER CURRENT LIABILITIES Network

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240 Implied Table Table

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241 Other Current Liabilities Abstract telesat:OtherCurrentLiabilitiesAbstract
242 OTHER CURRENT LIABILITIES Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOtherCurrentLiabilitiesExplanatory
243 00000029 - Disclosure - 22. OTHER LONG-TERM FINANCIAL LIABILITIES Network

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244 Implied Table Table

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245 Other Long-term Financial Liabilities Abstract telesat:OtherLongtermFinancialLiabilitiesAbstract
246 OTHER LONG-TERM FINANCIAL LIABILITIES Concept (Text Block (HTML)) For Period telesat:DisclosureOfNonFinancialOtherLiabilitiesExplanatory
247 00000030 - Disclosure - 23. OTHER LONG-TERM LIABILITIES Network

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248 Implied Table Table

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249 Other Long-term Liabilities Abstract telesat:OtherLongtermLiabilitiesAbstract
250 OTHER LONG-TERM LIABILITIES Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOtherNoncurrentLiabilitiesExplanatory
251 00000031 - Disclosure - 24. INDEBTEDNESS Network

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252 Implied Table Table

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253 Indebtedness Abstract telesat:IndebtednessAbstract
254 INDEBTEDNESS Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfBorrowingsExplanatory
255 00000032 - Disclosure - 25. SHARE CAPITAL Network

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256 Implied Table Table

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257 Share Capital Abstract telesat:ShareCapitalAbstract
258 SHARE CAPITAL Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory
259 00000033 - Disclosure - 26. CAPITAL DISCLOSURES Network

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260 Implied Table Table

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261 Capital Disclosures Abstract telesat:CapitalDisclosuresAbstract
262 CAPITAL DISCLOSURES Concept (Text Block (HTML)) For Period telesat:DisclosureOfCapitalDisclosures
263 00000034 - Disclosure - 27. FINANCIAL INSTRUMENTS Network

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264 Implied Table Table

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265 Financial Instruments Abstract telesat:FinancialInstrumentsAbstract
266 FINANCIAL INSTRUMENTS Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFinancialInstrumentsExplanatory
267 00000035 - Disclosure - 28. SHARE-BASED COMPENSATION PLANS Network

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268 Implied Table Table

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269 Share-based Compensation Plans Abstract telesat:SharebasedCompensationPlansAbstract
270 SHARE-BASED COMPENSATION PLANS Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfSharebasedPaymentArrangementsExplanatory
271 00000036 - Disclosure - 29. EMPLOYEE BENEFIT PLANS Network

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272 Implied Table Table

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273 Employee Benefit Plans Abstract telesat:EmployeeBenefitPlansAbstract
274 EMPLOYEE BENEFIT PLANS Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfEmployeeBenefitsExplanatory
275 00000037 - Disclosure - 30. SUPPLEMENTAL CASH FLOW INFORMATION Network

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276 Implied Table Table

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277 Supplemental Cash Flow Information Abstract telesat:SupplementalCashFlowInformation1Abstract
278 SUPPLEMENTAL CASH FLOW INFORMATION Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfCashFlowStatementExplanatory
279 00000038 - Disclosure - 31. COMMITMENTS AND CONTINGENT LIABILITIES Network

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280 Implied Table Table

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281 Commitments And Contingent Liabilities Abstract telesat:CommitmentsAndContingentLiabilitiesAbstract
282 COMMITMENTS AND CONTINGENT LIABILITIES Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfCommitmentsAndContingentLiabilitiesExplanatory
283 00000039 - Disclosure - 32. SUBSIDIARIES Network

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284 Implied Table Table

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285 Subsidiaries Abstract telesat:SubsidiariesAbstract
286 SUBSIDIARIES Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesExplanatory
287 00000040 - Disclosure - 33. RELATED PARTY TRANSACTIONS Network

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288 Implied Table Table

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289 Related Party Transactions Abstract ifrs-full:RelatedPartyTransactionsAbstract
290 RELATED PARTY TRANSACTIONS Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfRelatedPartyExplanatory
291 00000041 - Disclosure - 4. SIGNIFICANT ACCOUNTING POLICIES (Policies) Network

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292 Implied Table Table

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293 Significant Accounting Policies Abstract telesat:SignificantAccountingPoliciesAbstract
294 Segment Reporting Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForSegmentReportingExplanatory
295 Foreign Currency Translation Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory
296 Cash and Cash Equivalents Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyToDetermineComponentsOfCashAndCashEquivalents
297 Revenue Recognition Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForRecognitionOfRevenue
298 Deferred Revenue Concept (Text Block (HTML)) For Period telesat:DescriptionOfDeferredRevenue
299 Borrowing Costs Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForBorrowingCostsExplanatory
300 Satellites, Property and Other Equipment Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory
301 Satellite Performance Incentive Payments Concept (Text Block (HTML)) For Period telesat:DescriptionOfSatellitePerformanceIncentivePayments
302 Impairment of Long-Lived Assets Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForImpairmentOfNonfinancialAssetsExplanatory
303 Goodwill and Intangible Assets Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForIntangibleAssetsAndGoodwillExplanatory
304 Impairment of Goodwill and Indefinite Life Intangible Assets Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForImpairmentOfFinancialAssetsExplanatory
305 Financial Instruments Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatory
306 Financing Costs Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForFinanceCostsExplanatory
307 Employee Benefit Plans Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForEmployeeBenefitsExplanatory
308 Share-Based Compensation Plans Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory
309 Restricted Share Units Concept (Text Block (HTML)) For Period telesat:DescriptionOfAccountingPolicyForRestrictedShareUnitsExplanatory
310 Income Taxes Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForIncomeTaxExplanatory
311 Future Changes in Accounting Policies Concept (Text Block (HTML)) For Period telesat:DescriptionOfFutureChangesInAccountingPolicies
312 00000042 - Disclosure - 3. CHANGES IN ACCOUNTING POLICIES (Tables) Network

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313 Implied Table Table

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314 Changes In Accounting Policies Abstract telesat:ChangesInAccountingPoliciesAbstract
315 Schedule of effect, increases (decreases), of adopting these accounting standards on the balances of the balance sheet Concept (Text Block (HTML)) For Period telesat:ScheduleOfEffectIncreasesDecreasesOfAdoptingTheseAccountingStandardsOnBalancesOfBalanceSheetTableExplanatory
316 Schedule of impact on financial statements Concept (Text Block (HTML)) For Period telesat:ScheduleOfImpactOnFinancialStatementsExplanatory
317 00000043 - Disclosure - 4. SIGNIFICANT ACCOUNTING POLICIES (Tables) Network

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318 Implied Table Table

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319 Significant Accounting Policies Abstract telesat:SignificantAccountingPoliciesAbstract
320 Schedule of estimated useful lives in years of satellites, property and other equipment Concept (Text Block (HTML)) For Period telesat:DisclosureOfDetailedInformationAboutEstimatedUsefulLivesInYearsSatellitesPropertyAndOtherEquipmentExplanatory
321 Schedule of estimated useful lives in years of finite life intangible assets Concept (Text Block (HTML)) For Period telesat:DisclosureOfDetailedInformationAboutEstimatedUsefulLivesInYearsOfFiniteLifeIntangibleAssetsExplanatory
322 00000044 - Disclosure - 6. SEGMENT INFORMATION (Tables) Network

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323 Implied Table Table

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324 Segment Information Abstract telesat:SegmentInformationsAbstract
325 Schedule of revenue derived from services Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfProductsAndServicesExplanatory
326 Schedule of equipment sales within services Concept (Text Block (HTML)) For Period telesat:ScheduleOfEquipmentSalesWithinServicesExplanatory
327 Schedule by geographic regions Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfGeographicalAreasExplanatory
328 00000045 - Disclosure - 7. OPERATING EXPENSES (Tables) Network

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329 Implied Table Table

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330 Operating Expenses Abstract telesat:OperatingExpenseAbstract
331 Schedule of operating expenses Concept (Text Block (HTML)) For Period telesat:DisclosureOfDetailedInformationAboutOperatingExpensesExplanatory
332 00000046 - Disclosure - 8. OTHER OPERATING GAINS (LOSSES), NET (Tables) Network

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333 Implied Table Table

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334 Other Operating Gains Losses Net Abstract telesat:OtherOperatingGainsLossesNetAbstract
335 Schedule of Other operating gains (losses), net Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOtherOperatingExpenseExplanatory
336 00000047 - Disclosure - 9. INTEREST EXPENSE (Tables) Network

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337 Implied Table Table

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338 Interest Expense Abstract telesat:InterestExpense1Abstract
339 Schedule of interest expense Concept (Text Block (HTML)) For Period telesat:DisclosureOfDetailedInformationAboutInterestExpenseExplanatory
340 00000048 - Disclosure - 10. INCOME TAXES (Tables) Network

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341 Implied Table Table

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342 Income Taxes Abstract telesat:IncomeTaxesAbstract
343 Schedule of components of income tax expense Concept (Text Block (HTML)) For Period telesat:DisclosureOfDetailedInformationAboutComponentsOfIncomeTaxExpenseExplanatory
344 Schedule of reconciliation of statutory income tax rate Concept (Text Block (HTML)) For Period telesat:DisclosureOfDetailedInformationAboutReconciliationOfStatutoryIncomeTaxRate
345 Schedule of tax effects of temporary differences between carrying amounts of assets and liabilities for accounting purposes Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsExplanatory
346 00000049 - Disclosure - 11. TRADE AND OTHER RECEIVABLES (Tables) Network

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347 Implied Table Table

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348 Trade and Other Receivables Abstract ifrs-full:TradeAndOtherReceivablesAbstract
349 Schedule of components of trade and other receivables Concept (Text Block (HTML)) For Period telesat:DisclosureOfDetailedInformationAboutTradeAndOtherReceivablesExplanatory
350 Schedule of movement in allowance for doubtful accounts Concept (Text Block (HTML)) For Period telesat:DisclosureOfDetailedInformationAboutMovementInAllowanceForDoubtfulAccountsExplanatory
351 00000050 - Disclosure - 12. OTHER CURRENT FINANCIAL ASSETS (Tables) Network

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 http://telesat.com/role/OtherCurrentFinancialAssetsTables
352 Implied Table Table

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353 Other Current Financial Assets Abstract telesat:OtherCurrentFinancialAssetsAbstract
354 Schedule of other current financial assets Concept (Text Block (HTML)) For Period telesat:DisclosureOfDetailedInformationAboutOtherCurrentFinancialAssetsExplanatory
355 00000051 - Disclosure - 13. PREPAID EXPENSES AND OTHER CURRENT ASSETS (Tables) Network

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356 Implied Table Table

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357 Prepaid Expenses And Other Current Assets Abstract telesat:PrepaidExpenseAndOtherCurrentAssetsAbstract
358 Schedule of prepaid expenses and other current assets Concept (Text Block (HTML)) For Period telesat:DisclosureOfDetailedInformationAboutPrepaidExpensesAndOtherCurrentAssetsExplanatory
359 00000052 - Disclosure - 14. OTHER LONG-TERM FINANCIAL ASSETS (Tables) Network

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360 Implied Table Table

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361 Other Long-term Financial Assets Abstract telesat:OtherLongtermFinancialAssetsAbstract
362 Schedule of other long-term financial assets Concept (Text Block (HTML)) For Period telesat:DisclosureOfDetailedInformationAboutOtherLongTermFinancialAssetsExplanatory
363 00000053 - Disclosure - 15. OTHER LONG-TERM ASSETS (Tables) Network

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364 Implied Table Table

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365 Other Long-term Assets Abstract telesat:OtherLongtermAssetsAbstract
366 Schedule of other long-term assets Concept (Text Block (HTML)) For Period telesat:DisclosureOfDetailedInformationAboutOtherLongTermAssetsExplanatory
367 00000054 - Disclosure - 16. SATELLITES, PROPERTY AND OTHER EQUIPMENT (Tables) Network

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368 Implied Table Table

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369 Satellites Property And Other Equipment Abstract telesat:SatellitesPropertyAndOtherEquipmentAbstract
370 Schedule of satellites, property and other equipment Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory
371 00000055 - Disclosure - 17. INTANGIBLE ASSETS (Tables) Network

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 http://telesat.com/role/IntangibleAssetsTables
372 Implied Table Table

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373 Intangible Assets Abstract telesat:IntangibleAssetsAbstract
374 Schedule of indefinite life intangible assets Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfIntangibleAssetsWithIndefiniteUsefulLifeExplanatory
375 Schedule of finite life intangible assets Concept (Text Block (HTML)) For Period telesat:DisclosureOfIntangibleAssetsWithFiniteUsefulLifeExplanatory
376 Schedule of indefinite and finite life intangible assets Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDetailedInformationAboutIntangibleAssetsExplanatory
377 Schedule of remaining useful lives of intangible assets Concept (Text Block (HTML)) For Period telesat:DisclosureOfRemainingUsefulLifeIntangibleAssetsExplanatory
378 Schedule of recoverable amount, for indefinite life intangible assets valued using income approach Concept (Text Block (HTML)) For Period telesat:DisclosureOfRecoverableForIndefiniteLifeIntangibleAssetsValuedUsingIncomeApproachExplanatory
379 00000056 - Disclosure - 18. GOODWILL (Tables) Network

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 http://telesat.com/role/GoodwillTables
380 Implied Table Table

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381 Goodwill Abstract telesat:GoodwillAbstract
382 Schedule of significant assumptions used in impairment test Concept (Text Block (HTML)) For Period telesat:DisclosureOfDetailedInformationAboutSignificantAssumptionsUsedInImpairmentTestExplanatory
383 00000057 - Disclosure - 19. TRADE AND OTHER PAYABLES (Tables) Network

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 http://telesat.com/role/TradeAndOtherPayablesTables
384 Implied Table Table

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385 Trade And Other Payables Abstract ifrs-full:TradeAndOtherPayablesAbstract
386 Schedule of trade and other payables Concept (Text Block (HTML)) For Period telesat:DisclosureOfDetailedInformationTradeAndOtherPayablesExplanatory
387 00000058 - Disclosure - 20. OTHER CURRENT FINANCIAL LIABILITIES (Tables) Network

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 http://telesat.com/role/OtherCurrentFinancialLiabilitiesTables
388 Implied Table Table

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389 Other Current Financial Liabilities Abstract telesat:OtherCurrentFinancialLiabilitiesAbstract
390 Schedule of other current financial liabilities Concept (Text Block (HTML)) For Period telesat:DisclosureOfDetailedInformationAboutOtherCurrentFinancialLiabilitiesExplanatory
391 00000059 - Disclosure - 21. OTHER CURRENT LIABILITIES (Tables) Network

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 http://telesat.com/role/OtherCurrentLiabilitiesTables
392 Implied Table Table

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393 Other Current Liabilities Abstract telesat:OtherCurrentLiabilitiesAbstract
394 Schedule of other current liabilities Concept (Text Block (HTML)) For Period telesat:DisclosureOfDetailedInformationAboutOtherCurrentLiabilitiesExplanatory
395 00000060 - Disclosure - 22. OTHER LONG-TERM FINANCIAL LIABILITIES (Tables) Network

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 http://telesat.com/role/OtherLong-termFinancialLiabilitiesTables
396 Implied Table Table

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397 Other Long-term Financial Liabilities Abstract telesat:OtherLongtermFinancialLiabilitiesAbstract
398 Schedule of other long-term financial liabilities Concept (Text Block (HTML)) For Period telesat:DisclosureOfDetailedInformationAboutOtherLongTermFinancialLiabilitiesExplanatory
399 00000061 - Disclosure - 23. OTHER LONG-TERM LIABILITIES (Tables) Network

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 http://telesat.com/role/OtherLong-termLiabilitiesTables
400 Implied Table Table

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401 Other Long-term Liabilities Abstract telesat:OtherLongtermLiabilitiesAbstract
402 Schedule of other long-term liabilities Concept (Text Block (HTML)) For Period telesat:DisclosureOfDetailedInformationAboutOtherLongTermLiabilitiesExplanatory
403 Schedule of backlog to be recognised Concept (Text Block (HTML)) For Period telesat:ScheduleOfBacklogToBeRecognisedExplanatory
404 00000062 - Disclosure - 24. INDEBTEDNESS (Tables) Network

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 http://telesat.com/role/IndebtednessTables
405 Implied Table Table

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406 Indebtedness Abstract telesat:IndebtednessAbstract
407 Schedule of indebtedness Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsExplanatory
408 Schedule of short-term and long-term portions of deferred financing costs, interest rate floors, prepayment option and premiums Concept (Text Block (HTML)) For Period telesat:DisclosureOfDetailedInformationAboutShortTermAndLongTermPortionsOfDeferredFinancingCostsInterestRateFloorsPrepaymentOptionAndPremiumsExplanatory
409 Schedule of outstanding principal balance of indebtedness Concept (Text Block (HTML)) For Period telesat:DisclosureOfDetailedInformationAboutOutstandingPrincipalBalanceOfIndebtednessExcludingDeferredFinancingCostsInterestRateFloorAndPrepaymentOptionExplanatory
410 00000063 - Disclosure - 25. SHARE CAPITAL (Tables) Network

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 http://telesat.com/role/ShareCapitalTables
411 Implied Table Table

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412 Share Capital Abstract telesat:ShareCapitalAbstract
413 Schedule of number of shares and stated value of outstanding shares Concept (Text Block (HTML)) For Period telesat:DisclosureOfDetailedInformationAboutNumberOfSharesAndStatedValueOfOutstandingSharesExplanatory
414 00000064 - Disclosure - 26. CAPITAL DISCLOSURES (Tables) Network

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415 Implied Table Table

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416 Capital Disclosures Abstract telesat:CapitalDisclosuresAbstract
417 Schedule of company's capital Concept (Text Block (HTML)) For Period telesat:DisclosureOfDetailedInformationAboutCompanyCapitalExplanatory
418 00000065 - Disclosure - 27. FINANCIAL INSTRUMENTS (Tables) Network

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419 Implied Table Table

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420 Financial Instruments Abstract telesat:FinancialInstrumentsAbstract
421 Schedule of contractual maturities of financial liabilities Concept (Text Block (HTML)) For Period ifrs-full:MaturityAnalysisForDerivativeFinancialLiabilities
422 Schedule of interest payable and interest payments Concept (Text Block (HTML)) For Period telesat:DisclosureOfDetailedInformationAboutInterestPayableAndInterestPaymentsExplanatory
423 Schedule of financial assets and financial liabilities and fair values hierarchy Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFairValueMeasurementOfAssetsExplanatory
424 Schedule of rates used to calculate fair value of indebtedness Concept (Text Block (HTML)) For Period telesat:DisclosureOfDetailedInformationAboutRatesUsedToCalculateFairValueOfIndebtednessExplanatory
425 Schedule of current and long-term portions of fair value of derivative assets and liabilities Concept (Text Block (HTML)) For Period telesat:DisclosureOfDetailedInformationAboutCurrentAndLongTermPortionsOfFairValueOfDerivativeAssetsAndLiabilitiesExplanatory
426 Schedule of reconciliation of fair value of derivative assets and liabilities Concept (Text Block (HTML)) For Period telesat:DisclosureOfDetailedInformationAboutReconciliationOfFairValueOfDerivativeAssetsAndLiabilitiesExplanatory
427 00000066 - Disclosure - 28. SHARE-BASED COMPENSATION PLANS (Tables) Network

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 http://telesat.com/role/Share-basedCompensationPlansTables
428 Implied Table Table

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429 SHARE-BASED COMPENSATION PLANS Abstract telesat:SharebasedCompensationPlansInformationAbstract
430 Schedule of movement in number of stock options outstanding and weighted average exercise price Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfNumberAndWeightedAverageExercisePricesOfShareOptionsExplanatory
431 Schedule of movement in the number of restricted share units outstanding Concept (Text Block (HTML)) For Period telesat:ScheduleOfMovementInNumberOfRestrictedShareUnitsOutstandingExplanatory
432 Schedule of quantity of stock options exercisable and weighted average remaining life Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfNumberAndWeightedAverageRemainingContractualLifeOfOutstandingShareOptionsExplanatory
433 Schedule of share-based compensation expense Concept (Text Block (HTML)) For Period telesat:DisclosureOfDetailedInformationAboutShareBasedCompensationExpenseExplanatory
434 Schedule of weighted-average assumptions used to determine share-based compensation expense using Black-Scholes option pricing model Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfIndirectMeasurementOfFairValueOfGoodsOrServicesReceivedShareOptionsGrantedDuringPeriodExplanatory
435 00000067 - Disclosure - 29. EMPLOYEE BENEFIT PLANS (Tables) Network

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436 Implied Table Table

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437 Employee Benefit Plans Abstract telesat:EmployeeBenefitPlansAbstract
438 Schedule of expenses included on consolidated statements of income (loss) and consolidated statements of comprehensive income (loss) Concept (Text Block (HTML)) For Period telesat:DisclosureOfDetailedInformationAboutExpensesIncludedOnConsolidatedStatementsOfIncomeLossAndConsolidatedStatementsOfComprehensiveIncomeLossExplanatory
439 Schedule of pension and other post-employment benefits obligations, included in other long-term liabilities Concept (Text Block (HTML)) For Period telesat:DisclosureOfDetailedInformationAboutPensionAndOtherPostEmploymentBenefitsIncludedInOtherLongTermLiabilitiesExplanatory
440 Schedule of funded statuses of the benefit plans and accrued benefit liabilities balance Concept (Text Block (HTML)) For Period telesat:DisclosureOfDetailedInformationAboutFundedStatusesOfBenefitPlansAndAccruedBenefitLiabilitiesBalanceExplanatory
441 Schedule of changes in benefit obligations and fair value of plan assets Concept (Text Block (HTML)) For Period telesat:DisclosureOfDetailedInformationAboutChangesInBenefitObligationsAndFairValueOfPlanAssetsExplanatory
442 Schedule of estimated future benefit payments for defined benefit pension plans and other post-employment benefit plans Concept (Text Block (HTML)) For Period telesat:DisclosureOfDetailedInformationAboutEstimatedFutureBenefitPaymentsForDefinedBenefitPensionPlansAndOtherPostEmploymentBenefitPlansExplanatory
443 Schedule of fair value of plan assets allocation by type of investment Concept (Text Block (HTML)) For Period telesat:DisclosureOfDetailedInformationAboutFairValueOfPlanAssetsAllocatedAsTypesOfInvestmentsExplanatory
444 Schedule of significant assumptions adopted in measuring pension and other benefit obligations Concept (Text Block (HTML)) For Period telesat:DisclosureOfDetailedInformationAboutAssumptionsAdoptedInMeasuringPensionAndOtherBenefitObligationsExplanatory
445 Schedule of impact on defined benefit obligation from one percent increase or decrease change in assumptions used Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfSensitivityAnalysisForActuarialAssumptionsExplanatory
446 00000068 - Disclosure - 30. SUPPLEMENTAL CASH FLOW INFORMATION (Tables) Network

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447 Implied Table Table

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448 Supplemental Cash Flow Information Abstract telesat:SupplementalCashFlowInformation1Abstract
449 Schedule of cash and cash equivalents Concept (Text Block (HTML)) For Period telesat:DisclosureOfDetailedInformationAboutCashAndCashEquivalentsExplanatory
450 Schedule of income taxes paid, net of income taxes received Concept (Text Block (HTML)) For Period telesat:DisclosureOfDetailedInformationAboutIncomeTaxesPaidNetOfIncomeTaxesReceivedExplanatory
451 Schedule of interest paid, net of capitalized interest and interest received Concept (Text Block (HTML)) For Period telesat:DisclosureOfDetailedInformationAboutInterestPaidNetOfCapitalizedInterestAndInterestReceivedExplanatory
452 Schedule of reconciliation of the liabilities arising from financing activities Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFinancialLiabilitiesExplanatory
453 Schedule of net change in operating assets and liabilities Concept (Text Block (HTML)) For Period telesat:DisclosureOfDetailedInformationAboutNetChangeInOperatingAssetsAndLiabilitiesExplanatory
454 Schedule of non-cash investing activities Concept (Text Block (HTML)) For Period telesat:DisclosureOfDetailedInformationAboutNoncashInvestingAndFinancingActivitiesExplanatory
455 00000069 - Disclosure - 31. COMMITMENTS AND CONTINGENT LIABILITIES (Tables) Network

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456 Implied Table Table

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457 Commitments And Contingent Liabilities Abstract telesat:CommitmentsAndContingentLiabilitiesAbstract
458 Schedule of off-balance sheet contractual obligations Concept (Text Block (HTML)) For Period telesat:DisclosureOfDetailedInformationAboutOffBalanceSheetContractulObligationExplanatory
459 00000070 - Disclosure - 32. SUBSIDIARIES (Tables) Network

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460 Implied Table Table

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461 Subsidiaries Abstract telesat:SubsidiariesAbstract
462 Schedule of companies included in scope of consolidation Concept (Text Block (HTML)) For Period telesat:DisclosureOfDetailedInformationAboutCompaniesIncludedInScopeOfConsolidationExplanatory
463 00000071 - Disclosure - 33. RELATED PARTY TRANSACTIONS (Tables) Network

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464 Implied Table Table

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465 Related Party Transactions Abstract ifrs-full:RelatedPartyTransactionsAbstract
466 Schedule of compensation of executives and board level directors Concept (Text Block (HTML)) For Period telesat:DisclosureOfDetailedInformationAboutCompensationOfExecutivesAndBoardLevelDirectorsExplanatory
467 Schedule of related parties transaction Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfInterestsInSubsidiariesExplanatory
468 Schedule of related parties transaction outstanding Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesExplanatory
469 00000072 - Disclosure - 1. BACKGROUND OF THE COMPANY (Details Narrative) Network

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470 Disclosure of classes of share capital [table] Table

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471 Legal Entity [Axis] Axis dei:LegalEntityAxis
472 Entity [Domain] Member dei:EntityDomain
473 Loral Space and Communications Inc. [Member] Member telesat:LoralSpaceAndCommunicationsIncMember
474 Public Sector Pension Investment Board [Member] Member telesat:PublicSectorPensionInvestmentBoardMember
475 Classes of share capital [axis] Axis ifrs-full:ClassesOfShareCapitalAxis
476 Share capital [member] Member ifrs-full:ClassesOfShareCapitalMember
477 Director Voting Participating Preferred Shares [Member] Member telesat:DirectorVotingParticipatingPreferredSharesMember
478 Disclosure of classes of share capital [line items] LineItems ifrs-full:DisclosureOfClassesOfShareCapitalLineItems
479 Percentage of economic interests held indirectly Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestsHeldByNoncontrollingInterests
480 Percentage of voting interests held indirectly Concept (Percent) For Period ifrs-full:ProportionOfVotingRightsHeldByNoncontrollingInterests
481 Percentage of voting interests for electing directors Concept (Percent) For Period telesat:ProportionOfVotingRightsForElectingDirectorsHeldByNoncontrollingInterests
482 Percentage of voting interests held by shareholders for election of directors (Director Voting Preferred Shares) Concept (Percent) For Period telesat:PercentageOfVotingInterestsHeldByShareholdersForElectionOfDirectorsDirectorVotingPreferredShares
483 00000073 - Disclosure - 3. CHANGES IN ACCOUNTING POLICIES (Details) Network

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484 Statement of changes in equity [table] Table

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 ifrs-full:StatementOfChangesInEquityTable
485 Retrospective application and retrospective restatement [axis] Axis ifrs-full:RetrospectiveApplicationAndRetrospectiveRestatementAxis
486 Currently stated [member] Member ifrs-full:RestatedMember
487 IFRS 15 [Member] Member ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member
488 IFRS 9 [Member] Member telesat:IncreaseDecreaseDueToApplicationOfIFRS9Member
489 Total [Member] Member ifrs-full:IncreaseDecreaseDueToChangesInAccountingPolicyAndCorrectionsOfPriorPeriodErrorsMember
490 Statement of changes in equity [line items] LineItems ifrs-full:StatementOfChangesInEquityLineItems
491 Deferred tax assets Concept (Monetary) As Of Debit ifrs-full:DeferredTaxAssets
492 Satellites, property and other equipment Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
493 Other current liabilities Concept (Monetary) As Of Credit ifrs-full:OtherCurrentLiabilities
494 Current indebtedness Concept (Monetary) As Of Credit ifrs-full:CurrentPortionOfLongtermBorrowings
495 Long-term indebtedness Concept (Monetary) As Of Credit ifrs-full:LongtermBorrowings
496 Deferred tax liabilities Concept (Monetary) As Of Credit telesat:DeferredTaxLiabilities1
497 Other long-term liabilities Concept (Monetary) As Of Credit ifrs-full:OtherNoncurrentLiabilities
498 Accumulated earnings Concept (Monetary) As Of Credit ifrs-full:RetainedEarnings
499 Reserves Concept (Monetary) As Of Credit ifrs-full:CapitalReserve
500 00000074 - Disclosure - 3. CHANGES IN ACCOUNTING POLICIES (Details 1) Network

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501 Statement of changes in equity [table] Table

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 ifrs-full:StatementOfChangesInEquityTable
502 Retrospective application and retrospective restatement [axis] Axis ifrs-full:RetrospectiveApplicationAndRetrospectiveRestatementAxis
503 Currently stated [member] Member ifrs-full:RestatedMember
504 IFRS 15 [Member] Member ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member
505 Balance Without the Adoption of IFRS 15 [Member] Member telesat:BalanceWithoutTheAdoptionOfIFRS15Member
506 Statement of changes in equity [line items] LineItems ifrs-full:StatementOfChangesInEquityLineItems
507 Satellites, property and other equipment Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
508 Deferred tax assets Concept (Monetary) As Of Debit ifrs-full:DeferredTaxAssets
509 Other current liabilities Concept (Monetary) As Of Credit ifrs-full:OtherCurrentLiabilities
510 Deferred tax liabilities Concept (Monetary) As Of Credit telesat:DeferredTaxLiabilities1
511 Other long-term liabilities Concept (Monetary) As Of Credit ifrs-full:OtherNoncurrentLiabilities
512 Accumulated earnings Concept (Monetary) As Of Credit ifrs-full:RetainedEarnings
513 Reserves Concept (Monetary) As Of Credit ifrs-full:CapitalReserve
514 00000075 - Disclosure - 3. CHANGES IN ACCOUNTING POLICIES (Details 2) Network

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515 Statement of changes in equity [table] Table

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 ifrs-full:StatementOfChangesInEquityTable
516 Retrospective application and retrospective restatement [axis] Axis ifrs-full:RetrospectiveApplicationAndRetrospectiveRestatementAxis
517 Currently stated [member] Member ifrs-full:RestatedMember
518 IFRS 15 [Member] Member ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member
519 Balance Without the Adoption of IFRS 15 [Member] Member telesat:BalanceWithoutTheAdoptionOfIFRS15Member
520 Statement of changes in equity [line items] LineItems ifrs-full:StatementOfChangesInEquityLineItems
521 Revenue Concept (Monetary) For Period Credit ifrs-full:Revenue
522 Operating expenses Concept (Monetary) For Period Debit ifrs-full:OperatingExpense
523 Depreciation Concept (Monetary) For Period Debit ifrs-full:DepreciationExpense
524 Operating income Concept (Monetary) For Period Credit ifrs-full:RevenueAndOperatingIncome
525 Interest expense Concept (Monetary) For Period Debit ifrs-full:InterestExpense
526 Loss before tax Concept (Monetary) For Period Credit ifrs-full:ProfitLossBeforeTax
527 Tax expense Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
528 Net loss Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
529 00000076 - Disclosure - 3. CHANGES IN ACCOUNTING POLICIES (Details 3) Network

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*

 http://telesat.com/role/ChangesInAccountingPoliciesDetails3
530 Statement of changes in equity [table] Table

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 ifrs-full:StatementOfChangesInEquityTable
531 Retrospective application and retrospective restatement [axis] Axis ifrs-full:RetrospectiveApplicationAndRetrospectiveRestatementAxis
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533 IFRS 15 [Member] Member ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member
534 Balance Without the Adoption of IFRS 15 [Member] Member telesat:BalanceWithoutTheAdoptionOfIFRS15Member
535 Statement of changes in equity [line items] LineItems ifrs-full:StatementOfChangesInEquityLineItems
536 Net loss Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
537 Foreign currency translation adjustments Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnChangeInValueOfForeignCurrencyBasisSpreadsNetOfTax
538 Other comprehensive income Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncome
539 Total comprehensive loss Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncome
540 00000077 - Disclosure - 3. CHANGES IN ACCOUNTING POLICIES (Details 4) Network

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*

 http://telesat.com/role/ChangesInAccountingPoliciesDetails4
541 Statement of changes in equity [table] Table

*

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542 Retrospective application and retrospective restatement [axis] Axis ifrs-full:RetrospectiveApplicationAndRetrospectiveRestatementAxis
543 Currently stated [member] Member ifrs-full:RestatedMember
544 IFRS 15 [Member] Member ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member
545 Balance Without the Adoption of IFRS 15 [Member] Member telesat:BalanceWithoutTheAdoptionOfIFRS15Member
546 Statement of changes in equity [line items] LineItems ifrs-full:StatementOfChangesInEquityLineItems
547 Cash flows from operating activities Abstract ifrs-full:CashFlowsFromUsedInOperatingActivitiesAbstract
548 Net (loss) income Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
549 Adjustments to reconcile net loss to cash flows from operating activities Abstract ifrs-full:AdjustmentsForReconcileProfitLossAbstract
550 Depreciation Concept (Monetary) For Period Debit ifrs-full:DepreciationExpense
551 Tax expense Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
552 Interest expense Concept (Monetary) For Period Debit ifrs-full:InterestExpense
553 Other Concept (Monetary) For Period Debit ifrs-full:OtherAdjustmentsForNoncashItems
554 Interest paid, net of capitalized interest and interest received Concept (Monetary) For Period Credit ifrs-full:InterestPaidClassifiedAsOperatingActivities
555 Net cash from operating activities Concept (Monetary) For Period ifrs-full:CashFlowsFromUsedInOperatingActivities
556 Cash flows used in investing activities Abstract ifrs-full:CashFlowsFromUsedInInvestingActivitiesAbstract
557 Satellite programs, including capitalized interest Concept (Monetary) For Period Credit telesat:SatelliteProgramsIncludingCapitalizedInterest
558 Net cash used in investing activities Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInInvestingActivities
559 00000079 - Disclosure - 4. SIGNIFICANT ACCOUNTING POLICIES (Details) Network

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*

 http://telesat.com/role/SignificantAccountingPoliciesDetails
560 Disclosure of detailed information about property, plant and equipment [table] Table

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561 Classes of property, plant and equipment [axis] Axis ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
562 Property, plant and equipment [member] Member ifrs-full:PropertyPlantAndEquipmentMember
563 Satellites [Member] Member telesat:SatellitesMember
564 Property and Other Equipment [Member] Member telesat:PropertyAndOtherEquipmentMember
565 Disclosure of detailed information about property, plant and equipment [line items] LineItems ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems
566 Estimated useful lives (in years) Concept (Text/String) For Period ifrs-full:UsefulLivesOrDepreciationRatesPropertyPlantAndEquipment
567 00000080 - Disclosure - 4. SIGNIFICANT ACCOUNTING POLICIES (Details 1) Network

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 http://telesat.com/role/SignificantAccountingPoliciesDetails1
568 Disclosure of reconciliation of changes in intangible assets and goodwill [table] Table

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570 Intangible assets and goodwill [member] Member ifrs-full:IntangibleAssetsAndGoodwillMember
571 Revenue Backlog [Member] Member telesat:RevenueBacklogMember
572 Customer Relationships [Member] Member ifrs-full:CustomerrelatedIntangibleAssetsMember
573 Customer Contracts [Member] Member telesat:CustomerContracts1Member
574 Concession Rights [Member] Member ifrs-full:ServiceConcessionRightsMember
575 Transponder Rights [Member] Member telesat:TransponderRightsMember
576 Patents [Member] Member telesat:Patents1Member
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578 Estimated useful lives of the finite intangible assets (in years) Concept (Text/String) For Period ifrs-full:UsefulLivesOrAmortisationRatesIntangibleAssetsOtherThanGoodwill
579 00000081 - Disclosure - 5. CRITICAL ACCOUNTING JUDGMENTS AND ESTIMATES (Details Narrative) Network

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 http://telesat.com/role/CriticalAccountingJudgmentsAndEstimatesDetailsNarrative
580 Implied Table Table

*

*

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581 Critical Accounting Judgments And Estimates Abstract telesat:CriticalAccountingJudgmentsAndEstimatesAbstract
582 Derivative financial assets, at fair value Concept (Monetary) As Of Debit ifrs-full:DerivativeFinancialAssets
583 Derivative financial liabilities, at fair value Concept (Monetary) As Of Credit ifrs-full:DerivativeFinancialLiabilities
584 Goodwill Concept (Monetary) As Of Debit ifrs-full:Goodwill
585 Intangible assets Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsOtherThanGoodwill
586 00000082 - Disclosure - 6. SEGMENT INFORMATION (Details) Network

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 http://telesat.com/role/SegmentInformationDetails
587 Disclosure of disaggregation of revenue from contracts with customers [table] Table

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589 Products and services [member] Member ifrs-full:ProductsAndServicesMember
590 Broadcast [Member] Member telesat:BroadcastMember
591 Enterprise [Member] Member telesat:EnterpriseMember
592 Consulting and Other [Member] Member telesat:ConsultingAndOtherMember
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594 Revenue Concept (Monetary) For Period Credit ifrs-full:Revenue
595 00000083 - Disclosure - 6. SEGMENT INFORMATION (Details 1) Network

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 http://telesat.com/role/SegmentInformationDetails1
596 Disclosure of disaggregation of revenue from contracts with customers [table] Table

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598 Products and services [member] Member ifrs-full:ProductsAndServicesMember
599 Broadcast [Member] Member telesat:BroadcastMember
600 Enterprise [Member] Member telesat:EnterpriseMember
601 Consulting and Other [Member] Member telesat:ConsultingAndOtherMember
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603 Equipment sales services Concept (Monetary) For Period Credit ifrs-full:RevenueFromRenderingOfServices
604 00000084 - Disclosure - 6. SEGMENT INFORMATION (Details 2) Network

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 http://telesat.com/role/SegmentInformationDetails2
605 Disclosure of disaggregation of revenue from contracts with customers [table] Table

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612 ASIA & AUSTRALIA Member telesat:AsiaAndAustraliaMember
613 ALL OTHERS Member telesat:AllOthersMember
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615 Revenue Concept (Monetary) For Period Credit ifrs-full:Revenue
616 Satellites, property and other equipment Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
617 Intangible assets Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsOtherThanGoodwill
618 Other long-term financial assets Concept (Monetary) As Of Debit ifrs-full:OtherNoncurrentFinancialAssets
619 Other long-term assets Concept (Monetary) As Of Debit ifrs-full:OtherNoncurrentAssets
620 00000085 - Disclosure - 6. SEGMENT INFORMATION (Details Narrative) Network

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*

 http://telesat.com/role/SegmentInformationDetailsNarrative
621 Implied Table Table

*

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622 Segment Information Abstract telesat:SegmentInformationsAbstract
623 Number of customers with greater than 10% of consolidated revenue Concept (Integer) For Period telesat:NumberOfCustomersWithGreaterThanTenPercentOfConsolidatedRevenue
624 00000086 - Disclosure - 7. OPERATING EXPENSES (Details) Network

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*

 http://telesat.com/role/OperatingExpensesDetails
625 Implied Table Table

*

*

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626 Operating Expenses Abstract telesat:OperatingExpenseAbstract
627 Compensation and employee benefits Concept (Monetary) For Period Debit ifrs-full:EmployeeBenefitsExpense
628 Other operating expenses Concept (Monetary) For Period Debit ifrs-full:OtherExpenseByFunction
629 Cost of sales Concept (Monetary) For Period Debit ifrs-full:CostOfSales
630 Operating expenses Concept (Monetary) For Period Debit ifrs-full:OperatingExpense
631 00000087 - Disclosure - 8. OTHER OPERATING GAINS (LOSSES), NET (Details) Network

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*

 http://telesat.com/role/OtherOperatingGainsLossesNetDetails
632 Implied Table Table

*

*

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633 Other Operating Gains Losses Net Abstract telesat:OtherOperatingGainsLossesNetAbstract
634 Insurance proceeds Concept (Monetary) For Period Debit telesat:InsuranceProceeds
635 Loss on disposal of assets Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForLossesGainsOnDisposalOfNoncurrentAssets
636 Other Concept (Monetary) For Period Debit telesat:OtherOperatingExpense
637 Other operating gains (losses), net Concept (Monetary) For Period Debit ifrs-full:MiscellaneousOtherOperatingExpense
638 00000088 - Disclosure - 9. INTEREST EXPENSE (Details) Network

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*

 http://telesat.com/role/InterestExpenseDetails
639 Implied Table Table

*

*

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640 Interest Expense Abstract telesat:InterestExpense1Abstract
641 Interest on indebtedness Concept (Monetary) For Period Debit ifrs-full:InterestExpenseOnBorrowings
642 Interest on derivative instruments Concept (Monetary) For Period Debit telesat:InterestOnDerivativeInstruments
643 Interest on satellite performance incentive payments Concept (Monetary) For Period Debit telesat:InterestExpenseOnSatellitePerformanceIncentivePayments
644 Interest on significant financing component Concept (Monetary) For Period Debit telesat:InterestOnSignificantFinancingComponent
645 Interest on employee benefit plans (Note 29) Concept (Monetary) For Period Debit telesat:InterestExpenseOnEmployeeBenefitPlans
646 Capitalized interest (Note 16) Concept (Monetary) For Period Credit telesat:InterestIncomeOnCapitalizedInterest
647 Interest expense Concept (Monetary) For Period Debit ifrs-full:InterestExpense
648 00000089 - Disclosure - 10. INCOME TAXES (Details) Network

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*

 http://telesat.com/role/IncomeTaxesDetails
649 Implied Table Table

*

*

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650 Income Taxes Abstract telesat:IncomeTaxesAbstract
651 Current tax expense Concept (Monetary) For Period Debit ifrs-full:CurrentTaxExpenseIncome
652 Deferred tax (recovery) expense Concept (Monetary) For Period Debit ifrs-full:DeferredTaxExpenseIncome
653 Tax expense Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
654 00000090 - Disclosure - 10. INCOME TAXES (Details 1) Network

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*

 http://telesat.com/role/IncomeTaxesDetails1
655 Implied Table Table

*

*

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656 Income Taxes Abstract telesat:IncomeTaxesAbstract
657 (Loss) income before tax Concept (Monetary) For Period Credit ifrs-full:ProfitLossBeforeTax
658 Multiplied by the statutory income tax rates Concept (Percent) For Period ifrs-full:ApplicableTaxRate
659 Tax expenses income at applicable tax rate Concept (Monetary) For Period Debit ifrs-full:TaxExpenseIncomeAtApplicableTaxRate
660 Income tax recorded at rates different from the Canadian tax rate Concept (Monetary) For Period Debit telesat:IncomeTaxRecordedAtRatesDifferentFromCanadianTaxRate
661 Permanent differences Concept (Monetary) For Period Debit telesat:DeferredTaxExpenseIncomeRelatedToPermanentDifferences
662 Effect on deferred tax balances due to changes in income tax rates Concept (Monetary) For Period Debit ifrs-full:DeferredTaxExpenseIncomeRelatingToTaxRateChangesOrImpositionOfNewTaxes
663 Effect of temporary differences not recognized as deferred tax assets Concept (Monetary) For Period Debit ifrs-full:DeferredTaxExpenseIncomeRelatingToOriginationAndReversalOfTemporaryDifferences
664 Previously unrecognized tax losses and credits Concept (Monetary) For Period Credit ifrs-full:TaxBenefitArisingFromPreviouslyUnrecognisedTaxLossTaxCreditOrTemporaryDifferenceOfPriorPeriodUsedToReduceDeferredTaxExpense
665 Other Concept (Monetary) For Period Debit ifrs-full:OtherComponentsOfDeferredTaxExpenseIncome
666 Tax expense Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
667 Effective income tax rate Concept (Percent) For Period ifrs-full:AverageEffectiveTaxRate
668 00000091 - Disclosure - 10. INCOME TAXES (Details 2) Network

*

*

 http://telesat.com/role/IncomeTaxesDetails2
669 Implied Table Table

*

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670 Income Taxes Abstract telesat:IncomeTaxesAbstract
671 Deferred tax assets Abstract telesat:DeferredTaxAssetsAbstract
672 Foreign tax credits Concept (Monetary) As Of Debit telesat:DeferredTaxAssetsForeignTaxCredits
673 Corporate interest restriction Concept (Monetary) As Of Debit telesat:DeferredTaxAssetsCorporateInterestRestriction
674 Unrealized foreign exchange losses Concept (Monetary) As Of Debit telesat:DeferredTaxAssetsUnrealizedForeignExchangeLosses
675 Deferred revenue Concept (Monetary) As Of Debit telesat:DeferredTaxAssetsDeferredRevenue
676 Loss carry forwards Concept (Monetary) As Of Debit telesat:DeferredTaxAssetsLossCarryForwards
677 Employee benefits Concept (Monetary) As Of Debit telesat:DeferredTaxAssetsEmployeeBenefits
678 Other Concept (Monetary) As Of Debit telesat:DeferredTaxAssetsOther1
679 Total deferred tax assets Concept (Monetary) As Of Debit telesat:TotalDeferredTaxAssets
680 Deferred tax liabilities Abstract telesat:DeferredTaxLiabilities1Abstract
681 Capital assets Concept (Monetary) As Of Credit telesat:DeferredTaxLiabilitiesCapitalAssets
682 Intangible assets Concept (Monetary) As Of Credit telesat:DeferredTaxLiabilitiesIntangibles
683 Finance charges Concept (Monetary) As Of Credit telesat:DeferredTaxLiabilitiesFinanceCharges
684 Unrealized foreign exchange gains Concept (Monetary) As Of Credit telesat:DeferredTaxLiabilitiesUnrealizedForeignExchangeGains
685 Total deferred tax liabilities Concept (Monetary) As Of Credit telesat:TotalDeferredTaxLiabilities
686 Deferred tax liabilities, net Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilityAsset
687 00000092 - Disclosure - 10. INCOME TAXES (Details Narrative) Network

*

*

 http://telesat.com/role/IncomeTaxesDetailsNarrative
688 Disclosure of disaggregation of revenue from contracts with customers [table] Table

*

*

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690 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
691 UNITED KINGDOM Member country:GB
692 Currency [Axis] Axis srt:CurrencyAxis
693 All Currencies [Domain] Member currency:AllCurrenciesDomain
694 British Pound Sterling Member currency:GBP
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696 Deferred tax assets Concept (Monetary) As Of Debit ifrs-full:DeferredTaxAssets
697 Foreign tax credits to offset taxes payable Concept (Monetary) As Of ifrs-full:UnusedTaxCreditsForWhichNoDeferredTaxAssetRecognised
698 Deferred tax assets unrecognized Concept (Monetary) As Of Debit telesat:DeferredTaxAssetsUnrecognized
699 Canadian capital losses Concept (Monetary) For Period Debit telesat:CanadianCapialLosses
700 Carried back to prior year capital gains Concept (Monetary) For Period Debit telesat:AdjustmentsToPriorYearCapitalGains
701 Tax losses carried forward Concept (Monetary) As Of Debit telesat:TaxLossesCarryforwardAmount
702 Temporary differences not recognized Concept (Monetary) As Of ifrs-full:TemporaryDifferencesAssociatedWithInvestmentsInSubsidiariesBranchesAndAssociatesAndInterestsInJointVentures
703 Percentage of maximum amount of profit carried-forward Concept (Percent) For Period telesat:PercentageOfMaximumAmountOfProfitCarriedforward
704 Allowance of unrestricted taxable income Concept (Monetary) As Of ifrs-full:DeductibleTemporaryDifferencesForWhichNoDeferredTaxAssetIsRecognised
705 Deferred tax asset deduct against future taxable income Concept (Monetary) As Of Debit ifrs-full:DeferredTaxAssetWhenUtilisationIsDependentOnFutureTaxableProfitsInExcessOfProfitsFromReversalOfTaxableTemporaryDifferencesAndEntityHasSufferedLossInJurisdictionToWhichDeferredTaxAssetRelates
706 00000093 - Disclosure - 11. TRADE AND OTHER RECEIVABLES (Details) Network

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 http://telesat.com/role/TradeAndOtherReceivablesDetails
707 Implied Table Table

*

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708 Trade and Other Receivables Abstract ifrs-full:TradeAndOtherReceivablesAbstract
709 Trade receivables Concept (Monetary) As Of Debit ifrs-full:CurrentTradeReceivables
710 Trade receivables due from related parties (Note 33) Concept (Monetary) As Of Debit ifrs-full:TradeAndOtherCurrentReceivablesDueFromRelatedParties
711 Less: Allowance for doubtful accounts Concept (Monetary) As Of Credit telesat:TradeAndOtherCurrentReceivablesAllowanceForDoubtfulAccounts
712 Net trade receivables Concept (Monetary) As Of Debit telesat:NetCurrentTradeReceivables
713 Other receivables Concept (Monetary) As Of Debit ifrs-full:OtherCurrentReceivables
714 Trade and other receivables Concept (Monetary) As Of Debit ifrs-full:TradeAndOtherCurrentReceivables
715 00000094 - Disclosure - 11. TRADE AND OTHER RECEIVABLES (Details 1) Network

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*

 http://telesat.com/role/TradeAndOtherReceivablesDetails1
716 Implied Table Table

*

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717 Trade and Other Receivables Abstract ifrs-full:TradeAndOtherReceivablesAbstract
718 Allowance for doubtful accounts, beginning of year Concept (Monetary) As Of Credit telesat:TradeAndOtherCurrentReceivablesAllowanceForDoubtfulAccounts
719 Provisions (reversals) for impaired receivables Concept (Monetary) For Period Debit telesat:AllowanceForDoubtfulAccountsCurrentReceivableProvisionsReversalsForImpairedReceivables
720 Cumulative effect adjustment Concept (Monetary) For Period Debit telesat:AllowanceForDoubtfulAccountsCurrentReceivableCumulativeEffectAdjustment
721 Receivables written off Concept (Monetary) For Period Debit telesat:AllowanceForDoubtfulAccountsCurrentReceivableWriteOffs
722 Impact of foreign exchange Concept (Monetary) For Period Debit telesat:AllowanceForDoubtfulAccountsCurrentReceivableImpactOfForeignExchange
723 Allowance for doubtful accounts, end of year Concept (Monetary) As Of Credit telesat:TradeAndOtherCurrentReceivablesAllowanceForDoubtfulAccounts
724 00000095 - Disclosure - 12. OTHER CURRENT FINANCIAL ASSETS (Details) Network

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*

 http://telesat.com/role/OtherCurrentFinancialAssetsDetails
725 Implied Table Table

*

*

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726 Other Current Financial Assets Abstract telesat:OtherCurrentFinancialAssetsAbstract
727 Security deposits Concept (Monetary) As Of Debit ifrs-full:ShorttermDepositsNotClassifiedAsCashEquivalents
728 Derivative assets (Note 27) Concept (Monetary) As Of Debit ifrs-full:CurrentDerivativeFinancialAssets
729 Other current financial assets Concept (Monetary) As Of Debit ifrs-full:OtherCurrentFinancialAssets
730 00000096 - Disclosure - 13. PREPAID EXPENSES AND OTHER CURRENT ASSETS (Details) Network

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*

 http://telesat.com/role/PrepaidExpensesAndOtherCurrentAssetsDetails
731 Implied Table Table

*

*

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732 Prepaid Expenses And Other Current Assets Abstract telesat:PrepaidExpenseAndOtherCurrentAssetsAbstract
733 Prepaid expenses Concept (Monetary) As Of Debit ifrs-full:CurrentPrepaidExpenses
734 Income tax recoverable Concept (Monetary) As Of Debit ifrs-full:CurrentTaxAssetsCurrent
735 Inventory Concept (Monetary) As Of Debit ifrs-full:Inventories
736 Deferred charges Concept (Monetary) As Of Debit telesat:CurrentDeferredFinancingCharges
737 Other Concept (Monetary) As Of Debit ifrs-full:OtherCurrentAssets
738 Prepaid expenses and other current assets Concept (Monetary) As Of Debit ifrs-full:CurrentPrepaymentsAndOtherCurrentAssets
739 00000097 - Disclosure - 13. PREPAID EXPENSES AND OTHER CURRENT ASSETS (Details Narrative) Network

*

*

 http://telesat.com/role/PrepaidExpensesAndOtherCurrentAssetsDetailsNarrative
740 Implied Table Table

*

*

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741 Prepaid Expenses And Other Current Assets Abstract telesat:PrepaidExpenseAndOtherCurrentAssetsAbstract
742 Finished goods Concept (Monetary) As Of Debit ifrs-full:FinishedGoods
743 Work in progress Concept (Monetary) As Of Debit ifrs-full:WorkInProgress
744 Recognized cost of equipment sales Concept (Monetary) For Period Debit telesat:RecognizedCostOfEquipmentSales
745 00000098 - Disclosure - 14. OTHER LONG-TERM FINANCIAL ASSETS (Details) Network

*

*

 http://telesat.com/role/OtherLong-termFinancialAssetsDetails
746 Implied Table Table

*

*

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747 Other Long-term Financial Assets Abstract telesat:OtherLongtermFinancialAssetsAbstract
748 Long-term receivables Concept (Monetary) As Of Debit ifrs-full:NoncurrentTradeReceivables
749 Security deposits Concept (Monetary) As Of Debit ifrs-full:LongtermDeposits
750 Derivative assets (Note 27) Concept (Monetary) As Of Debit ifrs-full:NoncurrentDerivativeFinancialAssets
751 Other long-term financial assets Concept (Monetary) As Of Debit ifrs-full:OtherNoncurrentFinancialAssets
752 00000099 - Disclosure - 15. OTHER LONG-TERM ASSETS (Details) Network

*

*

 http://telesat.com/role/OtherLong-termAssetsDetails
753 Implied Table Table

*

*

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754 Other Long-term Assets Abstract telesat:OtherLongtermAssetsAbstract
755 Prepaid expenses Concept (Monetary) As Of Debit ifrs-full:NoncurrentPrepayments
756 Deferred charges (Note 13) Concept (Monetary) As Of Debit telesat:NoncurrentDeferredFinancingCharges
757 Income tax recoverable Concept (Monetary) As Of Debit ifrs-full:CurrentTaxAssetsNoncurrent
758 Other Concept (Monetary) As Of Debit telesat:NoncurrentAssetsOther
759 Other long-term assets Concept (Monetary) As Of Debit ifrs-full:OtherNoncurrentAssets
760 00000100 - Disclosure - 16. SATELLITES, PROPERTY AND OTHER EQUIPMENT (Details) Network

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*

 http://telesat.com/role/SatellitesPropertyAndOtherEquipmentDetails
761 Disclosure of detailed information about property, plant and equipment [table] Table

*

*

 ifrs-full:DisclosureOfPropertyPlantAndEquipmentTable
762 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Axis ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
763 Carrying amount [member] Member ifrs-full:CarryingAmountMember
764 Gross carrying amount [Member] Member ifrs-full:GrossCarryingAmountMember
765 Accumulated depreciation, amortisation and impairment [Member] Member ifrs-full:AccumulatedDepreciationAmortisationAndImpairmentMember
766 Classes of property, plant and equipment [axis] Axis ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
767 Property, plant and equipment [member] Member ifrs-full:PropertyPlantAndEquipmentMember
768 Satellites [Member] Member telesat:SatellitesMember
769 Property and Other Equipment [Member] Member telesat:PropertyAndOtherEquipmentMember
770 Assets under construction [Member] Member ifrs-full:ConstructionInProgressMember
771 Disclosure of detailed information about property, plant and equipment [line items] LineItems ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems
772 Cost at beginning of year Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
773 Additions Concept (Monetary) For Period Debit ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment
774 Cumulative effect adjustment (Note 3) Concept (Monetary) For Period Debit ifrs-full:RevaluationIncreaseDecreasePropertyPlantAndEquipment
775 Disposals/retirements Concept (Monetary) For Period Credit ifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment
776 Reclassifications and transfers from assets under construction Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughTransfersFromConstructionInProgressPropertyPlantAndEquipment
777 Impact of foreign exchange Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment
778 Cost at end of year Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
779 00000101 - Disclosure - 16. SATELLITES, PROPERTY AND OTHER EQUIPMENT (Details Narrative) Network

*

*

 http://telesat.com/role/SatellitesPropertyAndOtherEquipmentDetailsNarrative
780 Disclosure of subsidiaries [table] Table

*

*

 ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesTable
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782 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
783 Telesat International Limited [Member] Member telesat:TelesatInternationalLimitedMember
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785 Intangible assets and goodwill [member] Member ifrs-full:IntangibleAssetsAndGoodwillMember
786 Intangible assets other than goodwill [Member] Member ifrs-full:IntangibleAssetsOtherThanGoodwillMember
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790 Property and Other Equipment [Member] Member telesat:PropertyAndOtherEquipmentMember
791 Disclosure of subsidiaries [line items] LineItems ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesLineItems
792 Capitalized interest Concept (Monetary) For Period Credit telesat:InterestIncomeOnCapitalizedInterest
793 Average capitalization rate Concept (Percent) For Period ifrs-full:CapitalisationRateOfBorrowingCostsEligibleForCapitalisation
794 Percentage of interest in joint operation Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInJointOperation
795 Increase of accumulated depreciation Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughTransfersAndOtherChangesPropertyPlantAndEquipment
796 00000102 - Disclosure - 17. INTANGIBLE ASSETS (Details) Network

*

*

 http://telesat.com/role/IntangibleAssetsDetails
797 Disclosure of intangible assets with indefinite useful life [table] Table

*

*

 ifrs-full:DisclosureOfIntangibleAssetsWithIndefiniteUsefulLifeTable
798 Intangible assets with indefinite useful life [Axis] Axis ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeAxis
799 Intangible assets with indefinite useful life [member] Member ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember
800 Intangible assets with indefinite useful life [Member] Member telesat:IntangibleAssetsWithIndefiniteUsefulLife1Member
801 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Axis ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
802 Carrying amount [member] Member ifrs-full:CarryingAmountMember
803 Gross carrying amount [Member] Member ifrs-full:GrossCarryingAmountMember
804 Accumulated depreciation, amortisation and impairment [Member] Member ifrs-full:AccumulatedDepreciationAmortisationAndImpairmentMember
805 Classes of intangible assets other than goodwill [Axis] Axis ifrs-full:ClassesOfIntangibleAssetsOtherThanGoodwillAxis
806 Intangible assets other than goodwill [Member] Member ifrs-full:IntangibleAssetsOtherThanGoodwillMember
807 Orbital slots [Member] Member telesat:OrbitalSlotsMember
808 Trade name [Member] Member ifrs-full:BrandNamesMember
809 Intellectual property [Member] Member telesat:IntellectualProperty1Member
810 Disclosure of intangible assets with indefinite useful life [line items] LineItems ifrs-full:DisclosureOfIntangibleAssetsWithIndefiniteUsefulLifeLineItems
811 Balance at beginning Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsOtherThanGoodwill
812 Additions Concept (Monetary) For Period Debit ifrs-full:AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill
813 Disposals/retirements Concept (Monetary) For Period Credit ifrs-full:DisposalsAndRetirementsIntangibleAssetsOtherThanGoodwill
814 Impact of foreign exchange Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsOtherThanGoodwill
815 Impairment Concept (Monetary) For Period ifrs-full:ImpairmentLossRecognisedInProfitOrLossIntangibleAssetsOtherThanGoodwill
816 Balance at ending Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsOtherThanGoodwill
817 00000105 - Disclosure - 17. INTANGIBLE ASSETS (Details 3) Network

*

*

 http://telesat.com/role/IntangibleAssetsDetails3
818 Disclosure of detailed information about intangible assets [table] Table

*

*

 ifrs-full:DisclosureOfIntangibleAssetsTable
819 Classes of intangible assets other than goodwill [Axis] Axis ifrs-full:ClassesOfIntangibleAssetsOtherThanGoodwillAxis
820 Intangible assets other than goodwill [Member] Member ifrs-full:IntangibleAssetsOtherThanGoodwillMember
821 Revenue Backlog [Member] Member telesat:RevenueBacklogMember
822 Customer Relationships [Member] Member ifrs-full:CustomerrelatedIntangibleAssetsMember
823 Customer Contracts [Member] Member telesat:CustomerContracts1Member
824 Transponder Rights [Member] Member telesat:TransponderRightsMember
825 Concession Rights [Member] Member ifrs-full:ServiceConcessionRightsMember
826 Patents [Member] Member telesat:Patents1Member
827 Disclosure of detailed information about intangible assets [line items] LineItems ifrs-full:DisclosureOfIntangibleAssetsLineItems
828 Remaining useful lives of intangible assets (in years) Concept (Text/String) For Period telesat:RemainingAmortisationPeriodOfIntangibleAssets
829 00000106 - Disclosure - 17. INTANGIBLE ASSETS (Details 4) Network

*

*

 http://telesat.com/role/IntangibleAssetsDetails4
830 Disclosure of detailed information about intangible assets [table] Table

*

*

 ifrs-full:DisclosureOfIntangibleAssetsTable
831 Range [Axis] Axis ifrs-full:RangeAxis
832 Ranges [member] Member ifrs-full:RangesMember
833 Bottom of range [Member] Member ifrs-full:BottomOfRangeMember
834 Top of range [Member] Member ifrs-full:TopOfRangeMember
835 Disclosure of detailed information about intangible assets [line items] LineItems ifrs-full:DisclosureOfIntangibleAssetsLineItems
836 Discount rate Concept (Percent) As Of telesat:DiscountRateForIndefiniteLifeIntangibleAssets
837 00000107 - Disclosure - 18. GOODWILL (Details) Network

*

*

 http://telesat.com/role/GoodwillDetails
838 Disclosure of reconciliation of changes in intangible assets and goodwill [table] Table

*

*

 ifrs-full:DisclosureOfReconciliationOfChangesInIntangibleAssetsAndGoodwillTable
839 Classes of intangible assets and goodwill [axis] Axis ifrs-full:ClassesOfIntangibleAssetsAndGoodwillAxis
840 Intangible assets and goodwill [member] Member ifrs-full:IntangibleAssetsAndGoodwillMember
841 Goodwill [Member] Member ifrs-full:GoodwillMember
842 Disclosure of reconciliation of changes in intangible assets and goodwill [line items] LineItems ifrs-full:DisclosureOfReconciliationOfChangesInIntangibleAssetsAndGoodwillLineItems
843 Discount rate Concept (Percent) As Of ifrs-full:DescriptionOfDiscountRatesAppliedToCashFlowProjections
844 Terminal year growth rate Concept (Percent) As Of ifrs-full:DescriptionOfGrowthRateUsedToExtrapolateCashFlowProjections
845 Goodwill Concept (Monetary) As Of Debit ifrs-full:Goodwill
846 00000108 - Disclosure - 19. TRADE AND OTHER PAYABLES (Details) Network

*

*

 http://telesat.com/role/TradeAndOtherPayablesDetails
847 Implied Table Table

*

*

 implied:Table
848 Trade And Other Payables Abstract ifrs-full:TradeAndOtherPayablesAbstract
849 Trade payables Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherCurrentPayablesToTradeSuppliers
850 Other payables and accrued liabilities Concept (Monetary) As Of Credit ifrs-full:AccrualsAndDeferredIncomeClassifiedAsCurrent
851 Trade and other payables Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherCurrentPayables
852 00000109 - Disclosure - 20. OTHER CURRENT FINANCIAL LIABILITIES (Details) Network

*

*

 http://telesat.com/role/OtherCurrentFinancialLiabilitiesDetails
853 Implied Table Table

*

*

 implied:Table
854 Other Current Financial Liabilities Abstract telesat:OtherCurrentFinancialLiabilitiesAbstract
855 Derivative liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentDerivativeFinancialLiabilities
856 Security deposits Concept (Monetary) As Of Credit ifrs-full:CurrentDepositsFromCustomers
857 Satellite performance incentive payments Concept (Monetary) As Of Credit telesat:CurrentSatellitePerformanceIncentivePaymentsLiabilities
858 Interest payable Concept (Monetary) As Of Credit ifrs-full:CurrentInterestPayable
859 Other Concept (Monetary) As Of Credit telesat:CurrentFinancialLiabilitiesOther
860 Other current financial liabilities Concept (Monetary) As Of Credit ifrs-full:OtherCurrentFinancialLiabilities
861 00000110 - Disclosure - 21. OTHER CURRENT LIABILITIES (Details) Network

*

*

 http://telesat.com/role/OtherCurrentLiabilitiesDetails
862 Implied Table Table

*

*

 implied:Table
863 Other Current Liabilities Abstract telesat:OtherCurrentLiabilitiesAbstract
864 Deferred revenue Concept (Monetary) As Of Credit ifrs-full:DeferredIncomeClassifiedAsCurrent
865 Decommissioning liabilities (Note 23) Concept (Monetary) As Of Credit ifrs-full:ShorttermProvisionForDecommissioningRestorationAndRehabilitationCosts
866 Uncertain tax positions Concept (Monetary) As Of Credit telesat:UncertainTaxPositionsCurrent
867 Income taxes payable Concept (Monetary) As Of Credit ifrs-full:CurrentTaxLiabilitiesCurrent
868 Other Concept (Monetary) As Of Credit telesat:CurrentLiabilitesOther
869 Other current liabilities Concept (Monetary) As Of Credit ifrs-full:OtherCurrentLiabilities
870 00000111 - Disclosure - 22. OTHER LONG-TERM FINANCIAL LIABILITIES (Details) Network

*

*

 http://telesat.com/role/OtherLong-termFinancialLiabilitiesDetails
871 Implied Table Table

*

*

 implied:Table
872 Other Long-term Financial Liabilities Abstract telesat:OtherLongtermFinancialLiabilitiesDetailsAbstract
873 Derivative liabilities (Note 27) Concept (Monetary) As Of Credit ifrs-full:NoncurrentDerivativeFinancialLiabilities
874 Security deposits Concept (Monetary) As Of Credit ifrs-full:NoncurrentDepositsFromCustomers
875 Satellite performance incentive payments Concept (Monetary) As Of Credit telesat:NoncurrentSatellitePerformanceIncentivePaymentsLiabilities
876 Other Concept (Monetary) As Of Credit telesat:NoncurrentFinancialLiabilitiesOther
877 Other long-term financial liabilities Concept (Monetary) As Of Credit ifrs-full:OtherNoncurrentFinancialLiabilities
878 00000112 - Disclosure - 23. OTHER LONG-TERM LIABILITIES (Details) Network

*

*

 http://telesat.com/role/OtherLong-termLiabilitiesDetails
879 Implied Table Table

*

*

 implied:Table
880 Other Long-term Liabilities Abstract telesat:OtherLongtermLiabilitiesAbstract
881 Deferred revenue Concept (Monetary) As Of Credit ifrs-full:DeferredIncomeClassifiedAsNoncurrent
882 Accrued benefit liabilities (Note 29) Concept (Monetary) As Of Credit ifrs-full:NoncurrentRecognisedLiabilitiesDefinedBenefitPlan
883 Uncertain tax positions Concept (Monetary) As Of Credit telesat:UncertainTaxPositionsNoncurrent
884 Decommissioning liabilities Concept (Monetary) As Of Credit ifrs-full:LongtermProvisionForDecommissioningRestorationAndRehabilitationCosts
885 Other Concept (Monetary) As Of Credit telesat:NoncurrentLiabilitiesOther
886 Other long-term liabilities Concept (Monetary) As Of Credit ifrs-full:OtherNoncurrentLiabilities
887 00000113 - Disclosure - 23. OTHER LONG-TERM LIABILITIES (Details 1) Network

*

*

 http://telesat.com/role/OtherLong-termLiabilitiesDetails1
888 Disclosure of amounts to be recovered or settled after twelve months for classes of assets and liabilities that contain amounts to be recovered or settled both no more and more than twelve months after reporting date [table] Table

*

*

 ifrs-full:DisclosureOfAmountsToBeRecoveredOrSettledAfterTwelveMonthsForClassesOfAssetsAndLiabilitiesThatContainAmountsToBeRecoveredOrSettledBothNoMoreAndMoreThanTwelveMonthsAfterReportingDateTable
889 Maturity [axis] Axis ifrs-full:MaturityAxis
890 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
891 2019 [Member] Member ifrs-full:NotLaterThanOneYearMember
892 2020 [Member] Member ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember
893 2021 [Member] Member ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember
894 2022 [Member] Member ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember
895 2023 [Member] Member ifrs-full:LaterThanFourYearsAndNotLaterThanFiveYearsMember
896 Thereafter [Member] Member ifrs-full:LaterThanFiveYearsMember
897 Disclosure of amounts to be recovered or settled after twelve months for classes of assets and liabilities that contain amounts to be recovered or settled both no more and more than twelve months after reporting date [line items] LineItems ifrs-full:DisclosureOfAmountsToBeRecoveredOrSettledAfterTwelveMonthsForClassesOfAssetsAndLiabilitiesThatContainAmountsToBeRecoveredOrSettledBothNoMoreAndMoreThanTwelveMonthsAfterReportingDateLineItems
898 Total other long-term liabilities Concept (Monetary) As Of Credit telesat:OtherLongTermDebt1
899 00000114 - Disclosure - 23. OTHER LONG-TERM LIABILITIES (Details Narrative) Network

*

*

 http://telesat.com/role/OtherLong-termLiabilitiesDetailsNarrative
900 Implied Table Table

*

*

 implied:Table
901 Other Long-term Liabilities Abstract telesat:OtherLongtermLiabilitiesAbstract
902 Decommissioning liabilities on property and equipment Concept (Monetary) As Of Credit telesat:DecommissioningLiabilitiesOnPropertyAndEquipment
903 Interest expense related to decommissioning liabilities Concept (Monetary) For Period Debit telesat:InterestExpenseWithNoDecommissioningLiabilitiesDerecognized
904 00000117 - Disclosure - 24. INDEBTEDNESS (Details 2) Network

*

*

 http://telesat.com/role/IndebtednessDetails2
905 Disclosure of amounts to be recovered or settled after twelve months for classes of assets and liabilities that contain amounts to be recovered or settled both no more and more than twelve months after reporting date [table] Table

*

*

 ifrs-full:DisclosureOfAmountsToBeRecoveredOrSettledAfterTwelveMonthsForClassesOfAssetsAndLiabilitiesThatContainAmountsToBeRecoveredOrSettledBothNoMoreAndMoreThanTwelveMonthsAfterReportingDateTable
906 Maturity [axis] Axis ifrs-full:MaturityAxis
907 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
908 2019 [Member] Member ifrs-full:NotLaterThanOneYearMember
909 2020 [Member] Member ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember
910 2021 [Member] Member ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember
911 2022 [Member] Member ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember
912 2023 [Member] Member ifrs-full:LaterThanFourYearsAndNotLaterThanFiveYearsMember
913 Thereafter [Member] Member ifrs-full:LaterThanFiveYearsMember
914 Disclosure of amounts to be recovered or settled after twelve months for classes of assets and liabilities that contain amounts to be recovered or settled both no more and more than twelve months after reporting date [line items] LineItems ifrs-full:DisclosureOfAmountsToBeRecoveredOrSettledAfterTwelveMonthsForClassesOfAssetsAndLiabilitiesThatContainAmountsToBeRecoveredOrSettledBothNoMoreAndMoreThanTwelveMonthsAfterReportingDateLineItems
915 Borrowings before deferred financing costs Concept (Monetary) As Of Credit telesat:BorrowingsBeforeDeferredFinancingCosts
916 00000119 - Disclosure - 25. SHARE CAPITAL (Details) Network

*

*

 http://telesat.com/role/ShareCapitalDetails
917 Disclosure of classes of share capital [table] Table

*

*

 ifrs-full:DisclosureOfClassesOfShareCapitalTable
918 Classes of share capital [axis] Axis ifrs-full:ClassesOfShareCapitalAxis
919 Share capital [member] Member ifrs-full:ClassesOfShareCapitalMember
920 Common shares [Member] Member ifrs-full:OrdinarySharesMember
921 Voting Participating Preferred Shares [Member] Member telesat:VotingParticipatingPreferredSharesMember
922 Non-Voting Participating Preferred Shares [Member] Member telesat:NonVotingParticipatingPreferredSharesMember
923 Director Voting Preferred Shares [Member] Member telesat:DirectorVotingPreferredSharesMember
924 Disclosure of classes of share capital [line items] LineItems ifrs-full:DisclosureOfClassesOfShareCapitalLineItems
925 Number of shares Concept (Shares) As Of ifrs-full:NumberOfSharesOutstanding
926 Stated value Concept (Monetary) As Of Credit ifrs-full:IssuedCapital
927 00000120 - Disclosure - 25. SHARE CAPITAL (Details Narrative) Network

*

*

 http://telesat.com/role/ShareCapitalDetailsNarrative
928 Disclosure of classes of share capital [table] Table

*

*

 ifrs-full:DisclosureOfClassesOfShareCapitalTable
929 Classes of share capital [axis] Axis ifrs-full:ClassesOfShareCapitalAxis
930 Share capital [member] Member ifrs-full:ClassesOfShareCapitalMember
931 Non-Voting Participating Preferred Shares [Member] Member telesat:NonVotingParticipatingPreferredSharesMember
932 Director Voting Preferred Shares [Member] Member telesat:DirectorVotingPreferredSharesMember
933 Senior Preferred Shares [Member] Member telesat:SeniorPreferredSharesMember
934 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
935 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
936 Former Employee [Member] Member telesat:FormerEmployeeMember
937 Currency [Axis] Axis srt:CurrencyAxis
938 All Currencies [Domain] Member currency:AllCurrenciesDomain
939 USD Member currency:USD
940 Disclosure of classes of share capital [line items] LineItems ifrs-full:DisclosureOfClassesOfShareCapitalLineItems
941 Number of options granted Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsGrantedInSharebasedPaymentArrangement
942 Number of options exercised Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsExercisedInSharebasedPaymentArrangement
943 Value for stock options exercised Concept (Monetary) For Period Debit telesat:ValueForStockOptionsExercisedInSharebasedPaymentArrangement
944 Special cash distribution to shareholders Concept (Monetary) For Period Debit telesat:SpecialCashDistributiontoShareholders
945 Number of shares authorized Concept (Shares) As Of ifrs-full:NumberOfSharesAuthorised
946 Dividends entitled per share if declared Concept (Share) For Period ifrs-full:DividendsProposedOrDeclaredBeforeFinancialStatementsAuthorisedForIssueButNotRecognisedAsDistributionToOwnersPerShare
947 Redemption price per share Concept (Share) As Of telesat:RedemptionPricePerShare
948 00000121 - Disclosure - 26. CAPITAL DISCLOSURES (Details) Network

*

*

 http://telesat.com/role/CapitalDisclosuresDetails
949 Implied Table Table

*

*

 implied:Table
950 Capital Disclosures Abstract telesat:CapitalDisclosuresAbstract
951 Shareholders' equity (excluding reserves) Concept (Monetary) As Of Credit telesat:EquityExludingReserves
952 Debt financing (excluding deferred financing costs, prepayment option, interest rate floor and net gain on repricing/repayment) Concept (Monetary) As Of Credit telesat:BorrowingsBeforeDeferredFinancingCosts
953 00000122 - Disclosure - 27. FINANCIAL INSTRUMENTS (Details) Network

*

*

 http://telesat.com/role/FinancialInstrumentsDetails
954 Disclosure of detailed information about financial instruments [table] Table

*

*

 ifrs-full:DisclosureOfFinancialInstrumentsTable
955 Classes of financial instruments [axis] Axis ifrs-full:ClassesOfFinancialInstrumentsAxis
956 Financial instruments, class [member] Member ifrs-full:ClassesOfFinancialInstrumentsMember
957 Trade and other payables [Member] Member telesat:TradeAndOtherCurrentPayablesMember
958 Customer and other deposits [Member] Member telesat:CustomerAndOtherDepositsMember
959 Satellite performance incentive payments [Member] Member telesat:SatellitePerformanceIncentivePaymentsMember
960 Other financial liabilities [Member] Member telesat:OtherFinancialLiabilitiesMember
961 Indebtedness [Member] Member telesat:Borrowings1Member
962 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Axis ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
963 Carrying amount [member] Member ifrs-full:CarryingAmountMember
964 Carrying amount [Member] Member telesat:CarryingAmount1Member
965 Maturity [axis] Axis ifrs-full:MaturityAxis
966 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
967 2019 [Member] Member ifrs-full:NotLaterThanOneYearMember
968 2020 [Member] Member ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember
969 2021 [Member] Member ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember
970 2022 [Member] Member ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember
971 2023 [Member] Member ifrs-full:LaterThanFourYearsAndNotLaterThanFiveYearsMember
972 Thereafter [Member] Member ifrs-full:LaterThanFiveYearsMember
973 Disclosure of detailed information about financial instruments [line items] LineItems ifrs-full:DisclosureOfFinancialInstrumentsLineItems
974 Total contractual maturities of financial liabilities Concept (Monetary) As Of Credit ifrs-full:GrossLoanCommitments
975 00000123 - Disclosure - 27. FINANCIAL INSTRUMENTS (Details 1) Network

*

*

 http://telesat.com/role/FinancialInstrumentsDetails1
976 Disclosure of detailed information about financial instruments [table] Table

*

*

 ifrs-full:DisclosureOfFinancialInstrumentsTable
977 Classes of financial instruments [axis] Axis ifrs-full:ClassesOfFinancialInstrumentsAxis
978 Financial instruments, class [member] Member ifrs-full:ClassesOfFinancialInstrumentsMember
979 Satellite performance incentive payments [Member] Member telesat:SatellitePerformanceIncentivePaymentsMember
980 Other financial liabilities [Member] Member telesat:OtherFinancialLiabilitiesMember
981 Indebtedness [Member] Member telesat:Borrowings1Member
982 Disclosure of detailed information about financial instruments [line items] LineItems ifrs-full:DisclosureOfFinancialInstrumentsLineItems
983 Interest payable Concept (Monetary) As Of Credit ifrs-full:InterestPayable
984 Interest payments Concept (Monetary) As Of Credit telesat:InterestPayments
985 00000124 - Disclosure - 27. FINANCIAL INSTRUMENTS (Details 2) Network

*

*

 http://telesat.com/role/FinancialInstrumentsDetails2
986 Disclosure of detailed information about financial instruments [table] Table

*

*

 ifrs-full:DisclosureOfFinancialInstrumentsTable
987 Levels of fair value hierarchy [Axis] Axis ifrs-full:LevelsOfFairValueHierarchyAxis
988 All levels of fair value hierarchy [member] Member ifrs-full:AllLevelsOfFairValueHierarchyMember
989 Level 1 [Member] Member ifrs-full:Level1OfFairValueHierarchyMember
990 Level 1 & Level 2 [Member] Member telesat:Level1AndLevel2OfFairValueHierarchyMember
991 Level 2 [Member] Member ifrs-full:Level2OfFairValueHierarchyMember
992 Categories of financial assets [axis] Axis ifrs-full:CategoriesOfFinancialAssetsAxis
993 Financial assets, category [member] Member ifrs-full:FinancialAssetsCategoryMember
994 Loans and receivables [Member] Member ifrs-full:LoansAndReceivablesCategoryMember
995 FVTPL [Member] Member ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember
996 Amortized Cost [Member] Member telesat:AmortizedCostMember
997 Measurement [axis] Axis ifrs-full:MeasurementAxis
998 Aggregated measurement [member] Member ifrs-full:AggregatedMeasurementMember
999 Fair value [Member] Member ifrs-full:AtFairValueMember
1000 Categories of financial liabilities [axis] Axis ifrs-full:CategoriesOfFinancialLiabilitiesAxis
1001 Financial liabilities, category [member] Member ifrs-full:FinancialLiabilitiesCategoryMember
1002 FVTPL [Member] Member ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember
1003 Other financial liabilities [Member] Member telesat:OtherFinancialLiabilitiesMember
1004 Amortized Cost [Member] Member telesat:AmortizedCostMember
1005 Disclosure of detailed information about financial instruments [line items] LineItems ifrs-full:DisclosureOfFinancialInstrumentsLineItems
1006 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
1007 Trade and other receivables Concept (Monetary) As Of Debit ifrs-full:TradeAndOtherCurrentReceivables
1008 Other current financial assets Concept (Monetary) As Of Debit ifrs-full:OtherCurrentFinancialAssets
1009 Other long-term financial assets Concept (Monetary) As Of Debit ifrs-full:OtherNoncurrentFinancialAssets
1010 Trade and other payables Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherCurrentPayables
1011 Other current financial liabilities Concept (Monetary) As Of Credit ifrs-full:OtherCurrentFinancialLiabilities
1012 Other long-term financial liabilities Concept (Monetary) As Of Credit ifrs-full:OtherNoncurrentFinancialLiabilities
1013 Indebtedness Concept (Monetary) As Of Credit telesat:BorrowingsBeforeDeferredFinancingCosts
1014 Loans and receivables Concept (Monetary) As Of Debit ifrs-full:LoansAndReceivables
1015 FVTPL Concept (Monetary) As Of Debit telesat:FinancialAssetsAndLiabilitiesAtFairValueThroughProfitOrLoss
1016 Other financial liabilities Concept (Monetary) As Of Credit ifrs-full:OtherFinancialLiabilities
1017 Total Concept (Monetary) As Of Debit ifrs-full:NetAssetsLiabilities
1018 00000126 - Disclosure - 27. FINANCIAL INSTRUMENTS (Details 4) Network

*

*

 http://telesat.com/role/FinancialInstrumentsDetails4
1019 Disclosure of detailed information about financial instruments [table] Table

*

*

 ifrs-full:DisclosureOfFinancialInstrumentsTable
1020 Levels of fair value hierarchy [Axis] Axis ifrs-full:LevelsOfFairValueHierarchyAxis
1021 All levels of fair value hierarchy [member] Member ifrs-full:AllLevelsOfFairValueHierarchyMember
1022 Level 2 [Member] Member ifrs-full:Level2OfFairValueHierarchyMember
1023 Classes of financial assets [axis] Axis ifrs-full:ClassesOfFinancialAssetsAxis
1024 Financial assets, class [member] Member ifrs-full:FinancialAssetsMember
1025 Interest rate floor [Member] Member telesat:InterestRateFloor1Member
1026 Interest rate swaps [Member] Member ifrs-full:InterestRateSwapContractMember
1027 Prepayment option [Member] Member telesat:PrepaymentOptionMember
1028 Disclosure of detailed information about financial instruments [line items] LineItems ifrs-full:DisclosureOfFinancialInstrumentsLineItems
1029 Other current financial assets Concept (Monetary) As Of Debit ifrs-full:OtherCurrentFinancialAssets
1030 Other long-term financial assets Concept (Monetary) As Of Debit ifrs-full:OtherNoncurrentFinancialAssets
1031 Other current financial liabilities Concept (Monetary) As Of Credit ifrs-full:OtherCurrentFinancialLiabilities
1032 Other long-term financial liabilities Concept (Monetary) As Of Credit ifrs-full:OtherNoncurrentFinancialLiabilities
1033 Total Concept (Monetary) As Of Debit telesat:FinancialAssetsAndLiabilitiesAtFairValueThroughProfitOrLoss
1034 00000127 - Disclosure - 27. FINANCIAL INSTRUMENTS (Details 5) Network

*

*

 http://telesat.com/role/FinancialInstrumentsDetails5
1035 Implied Table Table

*

*

 implied:Table
1036 Financial Instruments Abstract telesat:FinancialInstrumentsAbstract
1037 Fair value, Beginning Concept (Monetary) As Of Debit telesat:FinancialAssetsAndLiabilitiesAtFairValueThroughProfitOrLoss
1038 Derivatives recognized at inception Abstract telesat:DerivativesRecognizedAtInceptionAbstract
1039 Interest rate floors Concept (Monetary) For Period Credit telesat:DerivativesRecognizedInterestRateFloors
1040 Prepayment option Concept (Monetary) For Period Credit telesat:DerivativesRecognizedPrepaymentOption
1041 Realized losses on derivatives Abstract telesat:RealizedLossesOnDerivativesAbstract
1042 Forward foreign exchange contract Concept (Monetary) For Period Credit telesat:RealizedLossesOnDerivativesForwardForeignExchangeContract
1043 Unrealized gains (losses) on derivatives Abstract telesat:UnrealizedGainsLossesOnDerivativesAbstract
1044 Interest rate floors Concept (Monetary) For Period Credit telesat:UnrealizedGainsLossesOnDerivativesInterestRateFloors
1045 Prepayment option Concept (Monetary) For Period Credit telesat:UnrealizedGainsLossesOnDerivativesPrepaymentOptions
1046 Interest rate swaps Concept (Monetary) For Period Credit telesat:UnrealizedGainsLossesOnDerivativesInterestRateSwaps
1047 Forward foreign exchange contracts Concept (Monetary) For Period Credit telesat:UnrealizedGainsLossesOnDerivativesForwardForeignExchangeContracts
1048 Impact of foreign exchange Concept (Monetary) For Period Credit telesat:UnrealizedGainsLossesOnDerivativesImpactOfForeignExchange
1049 Fair value, Ending Concept (Monetary) As Of Debit telesat:FinancialAssetsAndLiabilitiesAtFairValueThroughProfitOrLoss
1050 00000129 - Disclosure - 28. SHARE-BASED COMPENSATION PLANS (Details) Network

*

*

 http://telesat.com/role/Share-basedCompensationPlansDetails
1051 Disclosure of terms and conditions of share-based payment arrangement [table] Table

*

*

 ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable
1052 Types of share-based payment arrangements [axis] Axis ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
1053 Share-based payment arrangements [member] Member ifrs-full:SharebasedPaymentArrangementsMember
1054 Time Vesting Option Plans [Member] Member telesat:TimeVestingOptionPlansMember
1055 Performance Vesting Option Plans [Member] Member telesat:PerformanceVestingOptionPlansMember
1056 Disclosure of terms and conditions of share-based payment arrangement [line items] LineItems ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems
1057 Number of options Abstract telesat:NumberOfOutstandingShareOptionsAbstract
1058 Outstanding at beginning Concept (Decimal) As Of ifrs-full:NumberOfOutstandingShareOptions
1059 Granted Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsGrantedInSharebasedPaymentArrangement
1060 Forfeited Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsForfeitedInSharebasedPaymentArrangement
1061 Exercised Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsExercisedInSharebasedPaymentArrangement
1062 Repurchased Concept (Decimal) For Period telesat:NumberOfShareOptionsRepurchasedInSharebasedPaymentArrangement
1063 Exchanged Concept (Decimal) For Period telesat:NumberOfShareOptionsExchangedInSharebasedPaymentArrangement
1064 Expired Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsExpiredInSharebasedPaymentArrangement
1065 Outstanding at ending Concept (Decimal) As Of ifrs-full:NumberOfOutstandingShareOptions
1066 Weighted average exercise price Abstract telesat:WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangementAbstract
1067 Outstanding at beginning Concept (Share) As Of telesat:WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement1
1068 Outstanding at ending Concept (Share) As Of telesat:WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement1
1069 00000130 - Disclosure - 28. SHARE-BASED COMPENSATION PLANS (Details 1) Network

*

*

 http://telesat.com/role/Share-basedCompensationPlansDetails1
1070 Disclosure of terms and conditions of share-based payment arrangement [table] Table

*

*

 ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable
1071 Types of share-based payment arrangements [axis] Axis ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
1072 Share-based payment arrangements [member] Member ifrs-full:SharebasedPaymentArrangementsMember
1073 Restricted Stock [Member] Member telesat:RestrictedStock1Member
1074 Disclosure of terms and conditions of share-based payment arrangement [line items] LineItems ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems
1075 Outstanding at beginning Concept (Decimal) As Of ifrs-full:NumberOfOutstandingShareOptions
1076 Granted Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsGrantedInSharebasedPaymentArrangement
1077 Outstanding at ending Concept (Decimal) As Of ifrs-full:NumberOfOutstandingShareOptions
1078 00000131 - Disclosure - 28. SHARE-BASED COMPENSATION PLANS (Details 2) Network

*

*

 http://telesat.com/role/Share-basedCompensationPlansDetails2
1079 Disclosure of terms and conditions of share-based payment arrangement [table] Table

*

*

 ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable
1080 Types of share-based payment arrangements [axis] Axis ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
1081 Share-based payment arrangements [member] Member ifrs-full:SharebasedPaymentArrangementsMember
1082 Time Vesting Option Plans [Member] Member telesat:TimeVestingOptionPlansMember
1083 Performance Vesting Option Plans [Member] Member telesat:PerformanceVestingOptionPlansMember
1084 Disclosure of terms and conditions of share-based payment arrangement [line items] LineItems ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems
1085 Quantity of stock options exercisable Concept (Decimal) As Of ifrs-full:NumberOfShareOptionsExercisableInSharebasedPaymentArrangement
1086 Weighted average remaining life Concept (xbrli:durationItemType) For Period telesat:WeightedAverageRemainingContractualLifeOfOutstandingShareOptions1
1087 00000132 - Disclosure - 28. SHARE-BASED COMPENSATION PLANS (Details 3) Network

*

*

 http://telesat.com/role/Share-basedCompensationPlansDetails3
1088 Implied Table Table

*

*

 implied:Table
1089 Share-based Compensation Plans Abstract telesat:SharebasedCompensationPlansAbstract
1090 Operating expenses Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForSharebasedPayments
1091 00000133 - Disclosure - 28. SHARE-BASED COMPENSATION PLANS (Details 4) Network

*

*

 http://telesat.com/role/Share-basedCompensationPlansDetails4
1092 Implied Table Table

*

*

 implied:Table
1093 Share-based Compensation Plans Abstract telesat:SharebasedCompensationPlansAbstract
1094 Dividend yield Concept (Percent) For Period ifrs-full:ExpectedDividendAsPercentageShareOptionsGranted
1095 Expected volatility Concept (Percent) For Period ifrs-full:DescriptionOfExpectedVolatilityShareOptionsGranted
1096 Risk-free interest rate Concept (Percent) For Period ifrs-full:DescriptionOfRiskFreeInterestRateShareOptionsGranted
1097 Expected life (years) Concept (xbrli:durationItemType) For Period telesat:DescriptionOfOptionLifeShareOptionsGranted1
1098 00000135 - Disclosure - 29. EMPLOYEE BENEFIT PLANS (Details) Network

*

*

 http://telesat.com/role/EmployeeBenefitPlansDetails
1099 Disclosure of defined benefit plans [table] Table

*

*

 ifrs-full:DisclosureOfDefinedBenefitPlansTable
1100 Defined benefit plans [Axis] Axis ifrs-full:DefinedBenefitPlansAxis
1101 Defined benefit plans [member] Member ifrs-full:DefinedBenefitPlansMember
1102 Pension plans [Member] Member telesat:PensionPlansDefinedBenefit1Member
1103 Other post-employment benefit plans [Member] Member telesat:OtherPostretirementBenefitPlansDefinedBenefit1Member
1104 Disclosure of defined benefit plans [line items] LineItems ifrs-full:DisclosureOfDefinedBenefitPlansLineItems
1105 Consolidated statements of (loss) income Abstract telesat:ConsolidatedStatementsOfIncomeLossAbstract
1106 Operating expenses Concept (Monetary) For Period Debit ifrs-full:OperatingExpenseExcludingCostOfSales
1107 Interest expense Concept (Monetary) For Period Debit ifrs-full:InterestExpense
1108 Consolidated statements of comprehensive (loss) income Abstract telesat:ConsolidatedStatementsOfComprehensiveIncomeLossAbstract
1109 Actuarial (gains) losses on employee benefit plans Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans
1110 00000136 - Disclosure - 29. EMPLOYEE BENEFIT PLANS (Details 1) Network

*

*

 http://telesat.com/role/EmployeeBenefitPlansDetails1
1111 Disclosure of defined benefit plans [table] Table

*

*

 ifrs-full:DisclosureOfDefinedBenefitPlansTable
1112 Defined benefit plans [Axis] Axis ifrs-full:DefinedBenefitPlansAxis
1113 Defined benefit plans [member] Member ifrs-full:DefinedBenefitPlansMember
1114 Pension plans [Member] Member telesat:PensionPlansDefinedBenefit1Member
1115 Other post-employment benefit plans [Member] Member telesat:OtherPostretirementBenefitPlansDefinedBenefit1Member
1116 Disclosure of defined benefit plans [line items] LineItems ifrs-full:DisclosureOfDefinedBenefitPlansLineItems
1117 Accrued benefit liabilities Concept (Monetary) As Of Credit ifrs-full:NoncurrentRecognisedLiabilitiesDefinedBenefitPlan
1118 00000137 - Disclosure - 29. EMPLOYEE BENEFIT PLANS (Details 2) Network

*

*

 http://telesat.com/role/EmployeeBenefitPlansDetails2
1119 Disclosure of net defined benefit liability (asset) [table] Table

*

*

 ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetTable
1120 Defined benefit plans [Axis] Axis ifrs-full:DefinedBenefitPlansAxis
1121 Defined benefit plans [member] Member ifrs-full:DefinedBenefitPlansMember
1122 Pension plans [Member] Member telesat:PensionPlansDefinedBenefit1Member
1123 Other post-employment benefit plans [Member] Member telesat:OtherPostretirementBenefitPlansDefinedBenefit1Member
1124 Net defined benefit liability (asset) [axis] Axis ifrs-full:NetDefinedBenefitLiabilityAssetAxis
1125 Net defined benefit liability (asset) [member] Member ifrs-full:NetDefinedBenefitLiabilityAssetMember
1126 Present value of defined benefit obligation [Member] Member ifrs-full:PresentValueOfDefinedBenefitObligationMember
1127 Plan assets [Member] Member ifrs-full:PlanAssetsMember
1128 Disclosure of net defined benefit liability (asset) [line items] LineItems ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetLineItems
1129 Change in benefit obligations Abstract telesat:ChangeInBenefitObligationsNetDefinedBenefitLiabilityAssetAbstract
1130 Benefit obligation, at beginning of year Concept (Monetary) As Of Credit ifrs-full:DefinedBenefitObligationAtPresentValue
1131 Current service cost Concept (Monetary) For Period Credit ifrs-full:CurrentServiceCostNetDefinedBenefitLiabilityAsset
1132 Interest expense Concept (Monetary) For Period Credit ifrs-full:InterestExpenseIncomeNetDefinedBenefitLiabilityAsset
1133 Remeasurements Abstract ifrs-full:GainLossOnRemeasurementOfNetDefinedBenefitLiabilityAssetAbstract
1134 Actuarial gains arising from plan experience Concept (Monetary) For Period Debit ifrs-full:ReturnOnPlanAssetsNetDefinedBenefitLiabilityAsset
1135 Actuarial gains from change in demographic assumptions Concept (Monetary) For Period Debit ifrs-full:ActuarialGainsLossesArisingFromChangesInDemographicAssumptionsNetDefinedBenefitLiabilityAsset
1136 Actuarial gains from changes in financial assumptions Concept (Monetary) For Period Debit ifrs-full:ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsNetDefinedBenefitLiabilityAsset
1137 Benefits paid Concept (Monetary) For Period Credit telesat:BenefitsPaidNetDefinedBenefitLiabilityAsset
1138 Contributions by plan participants Concept (Monetary) For Period Debit ifrs-full:ContributionsToPlanByPlanParticipantsNetDefinedBenefitLiabilityAsset
1139 Foreign exchange Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughChangesInForeignExchangeRatesNetDefinedBenefitLiabilityAsset
1140 Adjustment to obligation for past service cost credit Concept (Monetary) For Period Credit ifrs-full:PastServiceCostNetDefinedBenefitLiabilityAsset
1141 Other Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughOtherChangesNetDefinedBenefitLiabilityAsset
1142 Benefit obligation, at end of year Concept (Monetary) As Of Credit ifrs-full:DefinedBenefitObligationAtPresentValue
1143 Change in fair value of plan assets Abstract telesat:ChangeInPlanAssetsAtFairValueNetDefinedBenefitLiabilityAssetAbstract
1144 Fair value of plan assets, at beginning of year Concept (Monetary) As Of Debit ifrs-full:PlanAssetsAtFairValue
1145 Contributions by plan participants Concept (Monetary) For Period Debit ifrs-full:ContributionsToPlanNetDefinedBenefitLiabilityAsset
1146 Contributions by employer Concept (Monetary) For Period Debit ifrs-full:ContributionsToPlanByEmployerNetDefinedBenefitLiabilityAsset
1147 Interest income Concept (Monetary) For Period Credit telesat:InterestExpenseIncomeNetLiabilityAsset
1148 Benefits paid Concept (Monetary) For Period Debit telesat:ChangeInFairValueBenefitsPaid
1149 Remeasurements Abstract telesat:GainLossOnRemeasurementOfNetDefinedBenefitLiabilityAssetAbstract1
1150 Return on plan assets, excluding interest income Concept (Monetary) For Period Debit ifrs-full:GainLossOnChangesInEffectOfLimitingNetDefinedBenefitAssetToAssetCeiling
1151 Administrative costs Concept (Monetary) For Period Debit telesat:AdministrativeCostsNetDefinedBenefitLiabilityAsset
1152 Fair value of plan assets, at end of year Concept (Monetary) As Of Debit ifrs-full:PlanAssetsAtFairValue
1153 Accrued benefit liabilities, at end of year Concept (Monetary) As Of Credit ifrs-full:NoncurrentRecognisedLiabilitiesDefinedBenefitPlan
1154 00000138 - Disclosure - 29. EMPLOYEE BENEFIT PLANS (Details 3) Network

*

*

 http://telesat.com/role/EmployeeBenefitPlansDetails3
1155 Disclosure of defined benefit plans [table] Table

*

*

 ifrs-full:DisclosureOfDefinedBenefitPlansTable
1156 Defined benefit plans [Axis] Axis ifrs-full:DefinedBenefitPlansAxis
1157 Defined benefit plans [member] Member ifrs-full:DefinedBenefitPlansMember
1158 Pension plans [Member] Member telesat:PensionPlansDefinedBenefit1Member
1159 Other post-employment benefit plans [Member] Member telesat:OtherPostretirementBenefitPlansDefinedBenefit1Member
1160 Maturity [axis] Axis ifrs-full:MaturityAxis
1161 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
1162 2019 [Member] Member ifrs-full:NotLaterThanOneYearMember
1163 2020 [Member] Member ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember
1164 2021 [Member] Member ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember
1165 2022 [Member] Member ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember
1166 2023 [Member] Member ifrs-full:LaterThanFourYearsAndNotLaterThanFiveYearsMember
1167 2024 to 2028 [Member] Member ifrs-full:LaterThanFiveYearsAndNotLaterThanTenYearsMember
1168 Disclosure of defined benefit plans [line items] LineItems ifrs-full:DisclosureOfDefinedBenefitPlansLineItems
1169 Estimated future benefit payments Concept (Monetary) For Period Credit ifrs-full:EstimateOfContributionsExpectedToBePaidToPlan
1170 00000140 - Disclosure - 29. EMPLOYEE BENEFIT PLANS (Details 5) Network

*

*

 http://telesat.com/role/EmployeeBenefitPlansDetails5
1171 Disclosure of defined benefit plans [table] Table

*

*

 ifrs-full:DisclosureOfDefinedBenefitPlansTable
1172 Defined benefit plans [Axis] Axis ifrs-full:DefinedBenefitPlansAxis
1173 Defined benefit plans [member] Member ifrs-full:DefinedBenefitPlansMember
1174 Pension plans [Member] Member telesat:PensionPlansDefinedBenefit1Member
1175 Other post-employment benefit plans [Member] Member telesat:OtherPostretirementBenefitPlansDefinedBenefit1Member
1176 Range [Axis] Axis ifrs-full:RangeAxis
1177 Ranges [member] Member ifrs-full:RangesMember
1178 Bottom of range [Member] Member ifrs-full:BottomOfRangeMember
1179 Top of range [Member] Member ifrs-full:TopOfRangeMember
1180 Disclosure of defined benefit plans [line items] LineItems ifrs-full:DisclosureOfDefinedBenefitPlansLineItems
1181 Discount rate Concept (Percent) As Of ifrs-full:ActuarialAssumptionOfDiscountRates
1182 Discount rate Concept (Percent) As Of telesat:ActuarialBenefitCostsAssumptionOfDiscountRates
1183 Future salary growth Concept (Percent) As Of ifrs-full:ActuarialAssumptionOfExpectedRatesOfSalaryIncreases
1184 Health care cost trend rate Concept (Percent) As Of ifrs-full:ActuarialAssumptionOfMedicalCostTrendRates
1185 Other medical trend rates Concept (Percent) As Of ifrs-full:OtherMaterialActuarialAssumptions
1186 00000141 - Disclosure - 29. EMPLOYEE BENEFIT PLANS (Details 6) Network

*

*

 http://telesat.com/role/EmployeeBenefitPlansDetails6
1187 Disclosure of defined benefit plans [table] Table

*

*

 ifrs-full:DisclosureOfDefinedBenefitPlansTable
1188 Defined benefit plans [Axis] Axis ifrs-full:DefinedBenefitPlansAxis
1189 Defined benefit plans [member] Member ifrs-full:DefinedBenefitPlansMember
1190 Pension plans [Member] Member telesat:PensionPlansDefinedBenefit1Member
1191 Other post-employment benefit plans [Member] Member telesat:OtherPostretirementBenefitPlansDefinedBenefit1Member
1192 Actuarial assumptions [axis] Axis ifrs-full:ActuarialAssumptionsAxis
1193 Actuarial assumptions [member] Member ifrs-full:ActuarialAssumptionsMember
1194 Discount rate [Member] Member ifrs-full:ActuarialAssumptionOfDiscountRatesMember
1195 Future salary growth [Member] Member ifrs-full:ActuarialAssumptionOfExpectedRatesOfSalaryIncreasesMember
1196 Medical and dental trend rates [Member] Member ifrs-full:ActuarialAssumptionOfMedicalCostTrendRatesMember
1197 Disclosure of defined benefit plans [line items] LineItems ifrs-full:DisclosureOfDefinedBenefitPlansLineItems
1198 1% increase Concept (Monetary) As Of Credit ifrs-full:IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleIncreaseInActuarialAssumption
1199 1% decrease Concept (Monetary) As Of Credit ifrs-full:IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleDecreaseInActuarialAssumption
1200 00000142 - Disclosure - 29. EMPLOYEE BENEFIT PLANS (Details Narrative) Network

*

*

 http://telesat.com/role/EmployeeBenefitPlansDetailsNarrative
1201 Disclosure of defined benefit plans [table] Table

*

*

 ifrs-full:DisclosureOfDefinedBenefitPlansTable
1202 Defined benefit plans [Axis] Axis ifrs-full:DefinedBenefitPlansAxis
1203 Defined benefit plans [member] Member ifrs-full:DefinedBenefitPlansMember
1204 Pension plans [Member] Member telesat:PensionPlansDefinedBenefit1Member
1205 Other post-employment benefit plans [Member] Member telesat:OtherPostretirementBenefitPlansDefinedBenefit1Member
1206 Disclosure of defined benefit plans [line items] LineItems ifrs-full:DisclosureOfDefinedBenefitPlansLineItems
1207 Contributions to defined benefit plans Concept (Monetary) For Period Credit ifrs-full:EmployerContributions
1208 Weighted average duration of defined benefit obligation Concept (xbrli:durationItemType) For Period telesat:WeightedAverageDurationOfDefinedBenefitObligation1
1209 Weighted average duration of current service cost Concept (xbrli:durationItemType) For Period telesat:WeightedAverageDurationOfCurrentServiceCost1
1210 Description of medical trend rate Concept (Text/String) For Period telesat:DescriptionOfMedicalTrendRate
1211 Expected contributions for next fiscal year Concept (Monetary) For Period Credit telesat:EstimateOfContributionsExpectedToBePaidToDefinedBenefitPlans
1212 Expected defined contributions for next fiscal year Concept (Monetary) For Period Credit telesat:EstimateOfContributionsExpectedToBePaidToDefinedContributionPlans
1213 00000143 - Disclosure - 30. SUPPLEMENTAL CASH FLOW INFORMATION (Details) Network

*

*

 http://telesat.com/role/SupplementalCashFlowInformationDetails
1214 Implied Table Table

*

*

 implied:Table
1215 Supplemental Cash Flow Information Abstract telesat:SupplementalCashFlowInformation1Abstract
1216 Cash Concept (Monetary) As Of Debit ifrs-full:Cash
1217 Short-term investments Concept (Monetary) As Of Debit ifrs-full:ShorttermInvestmentsClassifiedAsCashEquivalents
1218 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
1219 00000144 - Disclosure - 30. SUPPLEMENTAL CASH FLOW INFORMATION (Details 1) Network

*

*

 http://telesat.com/role/SupplementalCashFlowInformationDetails1
1220 Implied Table Table

*

*

 implied:Table
1221 Supplemental Cash Flow Information Abstract telesat:SupplementalCashFlowInformation1Abstract
1222 Income taxes paid Concept (Monetary) For Period Credit ifrs-full:IncomeTaxesPaidClassifiedAsOperatingActivities
1223 Income taxes received Concept (Monetary) For Period Debit ifrs-full:IncomeTaxesRefundClassifiedAsOperatingActivities
1224 Income taxes paid, net of income taxes received Concept (Monetary) For Period Credit ifrs-full:IncomeTaxesPaidRefundClassifiedAsOperatingActivities
1225 00000145 - Disclosure - 30. SUPPLEMENTAL CASH FLOW INFORMATION (Details 2) Network

*

*

 http://telesat.com/role/SupplementalCashFlowInformationDetails2
1226 Implied Table Table

*

*

 implied:Table
1227 Supplemental Cash Flow Information Abstract telesat:SupplementalCashFlowInformation1Abstract
1228 Interest paid Concept (Monetary) For Period Credit telesat:InterestPaidClassifiedAsOperatingActivities1
1229 Interest received Concept (Monetary) For Period Debit ifrs-full:InterestReceivedClassifiedAsOperatingActivities
1230 Capitalized interest Concept (Monetary) For Period Debit telesat:InterestIncomesOnCapitalizedInterest
1231 Interest paid, net of capitalized interest and interest received Concept (Monetary) For Period Credit ifrs-full:InterestPaidClassifiedAsOperatingActivities
1232 00000146 - Disclosure - 30. SUPPLEMENTAL CASH FLOW INFORMATION (Details 3) Network

*

*

 http://telesat.com/role/SupplementalCashFlowInformationDetails3
1233 Disclosure of financial liabilities [table] Table

*

*

 ifrs-full:DisclosureOfFinancialLiabilitiesTable
1234 Classes of financial liabilities [axis] Axis ifrs-full:ClassesOfFinancialLiabilitiesAxis
1235 Financial liabilities, class [member] Member ifrs-full:FinancialLiabilitiesMember
1236 Indebtedness [Member] Member telesat:IndebtednessMember
1237 Satellite Performance Incentive Payments [Member] Member telesat:SatellitePerformanceIncentivePaymentsMember
1238 Capital Lease [Member] Member telesat:CapitalLeaseMember
1239 Disclosure of financial liabilities [line items] LineItems ifrs-full:DisclosureOfFinancialLiabilitiesLineItems
1240 Reconciliation Liabilities [Roll Forward] Abstract ifrs-full:CategoriesOfFinancialLiabilitiesAbstract
1241 Beginning balance Concept (Monetary) As Of Credit ifrs-full:FinancialLiabilities
1242 Debt repricing costs Concept (Monetary) For Period Credit ifrs-full:PaymentsForDebtIssueCosts
1243 Cash outflows Concept (Monetary) For Period Credit telesat:OutflowsOfCashFromFinancingActivities
1244 Amortization of deferred financing costs, interest rate floor, prepayment option and net gain on repricing/repayment Concept (Monetary) For Period Debit telesat:AmortizationOfDeferredFinancingCostsInterestRateFloorAndPrepaymentOptionFromFinancingActivities
1245 Loss on voluntary payment (Note 24) Concept (Monetary) For Period Credit telesat:LossOnVoluntaryPayment
1246 Gain on repricing (Note 24) Concept (Monetary) For Period Credit telesat:GainOnRepricing
1247 Cumulative effect adjustment (Note 3) Concept (Monetary) For Period Debit telesat:FinancialLiabilitiesCumulativeEffectAdjustmentNote3
1248 Other Concept (Monetary) For Period Debit telesat:OtherFromFinancingActivities
1249 Impact of foreign exchange Concept (Monetary) For Period Credit telesat:ImpactOfForeignExchangeFromFinancingActivities
1250 Cash inflows Concept (Monetary) For Period Debit telesat:InflowsOfCashFromFinancingActivities
1251 Accrued debt issue costs Concept (Monetary) For Period Credit telesat:AccruedDebtIssueCostsFromFinancingActivities
1252 Write off of debt issue costs, interest rate floors, prepayment option and premiums Concept (Monetary) For Period Debit telesat:WriteOffOfDebtIssueCostsInterestRateFloorsPrepaymentOptionAndPremiumsFromFinancingActivities
1253 Non-cash additions Concept (Monetary) For Period Credit telesat:NoncashAdditionsFromFinancingActivities
1254 Ending balance Concept (Monetary) As Of Credit ifrs-full:FinancialLiabilities
1255 00000147 - Disclosure - 30. SUPPLEMENTAL CASH FLOW INFORMATION (Details 4) Network

*

*

 http://telesat.com/role/SupplementalCashFlowInformationDetails4
1256 Implied Table Table

*

*

 implied:Table
1257 Supplemental Cash Flow Information Abstract telesat:SupplementalCashFlowInformation1Abstract
1258 Trade and other receivables Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables
1259 Financial assets Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDecreaseIncreaseInFinancialAssetsHeldForTrading
1260 Other assets Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDecreaseIncreaseInOtherAssets
1261 Trade and other payables Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables
1262 Financial liabilities Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForIncreaseDecreaseInFinancialLiabilitiesHeldForTrading
1263 Other liabilities Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForIncreaseDecreaseInOtherLiabilities
1264 Operating assets and liabilities Concept (Monetary) For Period Credit telesat:AdjustmentsForDecreaseIncreaseInOperatingAssetsAndLiabilities
1265 00000148 - Disclosure - 30. SUPPLEMENTAL CASH FLOW INFORMATION (Details 5) Network

*

*

 http://telesat.com/role/SupplementalCashFlowInformationDetails5
1266 Implied Table Table

*

*

 implied:Table
1267 Supplemental Cash Flow Information Abstract telesat:SupplementalCashFlowInformation1Abstract
1268 Satellites, property and other equipment Concept (Monetary) For Period Debit telesat:NoncashActivitiesRelatedToSatellitesPropertyAndOtherEquipment
1269 Intangible assets Concept (Monetary) For Period Debit telesat:NoncashActivitiesRelatedToIntangibleAssets
1270 00000150 - Disclosure - 31. COMMITMENTS AND CONTINGENT LIABILITIES (Details) Network

*

*

 http://telesat.com/role/CommitmentsAndContingentLiabilitiesDetails
1271 Disclosure of detailed information about property, plant and equipment [table] Table

*

*

 ifrs-full:DisclosureOfPropertyPlantAndEquipmentTable
1272 Maturity [axis] Axis ifrs-full:MaturityAxis
1273 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
1274 2019 [Member] Member ifrs-full:NotLaterThanOneYearMember
1275 2020 [Member] Member ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember
1276 2021 [Member] Member ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember
1277 2022 [Member] Member ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember
1278 2023 [Member] Member ifrs-full:LaterThanFourYearsAndNotLaterThanFiveYearsMember
1279 Thereafter [Member] Member ifrs-full:LaterThanFiveYearsMember
1280 Property, plant and equipment by operating lease status [axis] Axis ifrs-full:PropertyPlantAndEquipmentByOperatingLeaseStatusAxis
1281 Property, plant and equipment by operating lease status [member] Member ifrs-full:PropertyPlantAndEquipmentByOperatingLeaseStatusMember
1282 Operating Property Leases [Member] Member ifrs-full:PropertyPlantAndEquipmentSubjectToOperatingLeasesMember
1283 Capital Commitments [Member] Member telesat:CapitalCommitmentsMember
1284 Other Operating Commitments [Member] Member telesat:OtherOperatingCommitmentsMember
1285 Disclosure of detailed information about property, plant and equipment [line items] LineItems ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems
1286 Contractual obligations Concept (Monetary) As Of Credit ifrs-full:ContractualCapitalCommitments
1287 00000152 - Disclosure - 32. SUBSIDIARIES (Details) Network

*

*

 http://telesat.com/role/SubsidiariesDetails
1288 Disclosure of subsidiaries [table] Table

*

*

 ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesTable
1289 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
1290 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
1291 Infosat Communications LP [Member] Member telesat:InfosatCommunicationsLPMember
1292 Telesat Spectrum General Partnership [Member] Member telesat:TelesatSpectrumGeneralPartnershipMember
1293 10680451 Canada Inc. [Member] Member telesat:CanadaInc10680451Member
1294 Skynet Satellite Corporation [Member] Member telesat:SkynetSatelliteCorporationMember
1295 Telesat Network Services, Inc. [Member] Member telesat:TelesatNetworkServicesIncMember
1296 The SpaceConnection Inc. [Member] Member telesat:TheSpaceConnectionIncMember
1297 Telesat Satellite LP [Member] Member telesat:TelesatSatelliteLPMember
1298 Infosat Able Holdings, Inc. [Member] Member telesat:InfosatAbleHoldingsIncMember
1299 Telesat Brasil Capacidade de Satelites Ltda. [Member] Member telesat:TelesatBrasilCapacidadeDeSatelitesLtdaMember
1300 Telesat (IOM) Limited [Member] Member telesat:TelesatIOMLimitedMember
1301 Telesat International Limited [Member] Member telesat:TelesatInternationalLimitedMember
1302 Disclosure of subsidiaries [line items] LineItems ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesLineItems
1303 Country Concept (Text/String) For Period ifrs-full:CountryOfIncorporationOrResidenceOfSubsidiary
1304 Method of consolidation Concept (Text Block (HTML)) For Period telesat:MethodOfConsolidationInSubsidiary
1305 Percentage of voting rights Concept (Percent) For Period ifrs-full:ProportionOfVotingPowerHeldInSubsidiary
1306 00000153 - Disclosure - 33. RELATED PARTY TRANSACTIONS (Details) Network

*

*

 http://telesat.com/role/RelatedPartyTransactionsDetails
1307 Implied Table Table

*

*

 implied:Table
1308 Related Party Transactions Abstract ifrs-full:RelatedPartyTransactionsAbstract
1309 Short-term benefits (including salaries) Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensationShorttermEmployeeBenefits
1310 Special payments Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensationOtherLongtermBenefits
1311 Post-employment benefits Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensationPostemploymentBenefits
1312 Share-based payments Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensationSharebasedPayment
1313 Compensation of executives and Board level directors Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensation
1314 00000154 - Disclosure - 33. RELATED PARTY TRANSACTIONS (Details 1) Network

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 http://telesat.com/role/RelatedPartyTransactionsDetails1
1315 Disclosure of transactions between related parties [table] Table

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 ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesTable
1316 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
1317 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
1318 Loral Holdings Corporation [Member] Member telesat:LoralHoldingsCorporationMember
1319 Disclosure of transactions between related parties [line items] LineItems ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesLineItems
1320 Revenue (Sale of goods and services, interest income) Concept (Monetary) For Period Credit ifrs-full:RevenueFromRenderingOfServices
1321 Operating expenses (Purchase of goods and services, interest expense) Concept (Monetary) For Period Debit ifrs-full:OperatingExpense
1322 00000155 - Disclosure - 33. RELATED PARTY TRANSACTIONS (Details 2) Network

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 http://telesat.com/role/RelatedPartyTransactionsDetails2
1323 Disclosure of transactions between related parties [table] Table

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 ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesTable
1324 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
1325 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
1326 Loral Holdings Corporation [Member] Member telesat:LoralHoldingsCorporationMember
1327 Disclosure of transactions between related parties [line items] LineItems ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesLineItems
1328 Current receivables Concept (Monetary) As Of Debit ifrs-full:TradeAndOtherCurrentReceivablesDueFromRelatedParties
1329 Current payables Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherCurrentPayablesToRelatedParties
1330 00000156 - Disclosure - 33. RELATED PARTY TRANSACTIONS (Details Narrative) Network

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 http://telesat.com/role/RelatedPartyTransactionsDetailsNarrative
1331 Disclosure of transactions between related parties [table] Table

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 ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesTable
1332 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
1333 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
1334 Key Management Personnel Of Entity Or Parent [Member] Member ifrs-full:KeyManagementPersonnelOfEntityOrParentMember
1335 Classes of share capital [axis] Axis ifrs-full:ClassesOfShareCapitalAxis
1336 Share capital [member] Member ifrs-full:ClassesOfShareCapitalMember
1337 Non-Voting Participating Preferred Shares [Member] Member telesat:NonVotingParticipatingPreferredSharesMember
1338 Currency [Axis] Axis srt:CurrencyAxis
1339 All Currencies [Domain] Member currency:AllCurrenciesDomain
1340 USD Member currency:USD
1341 Legal Entity [Axis] Axis dei:LegalEntityAxis
1342 Entity [Domain] Member dei:EntityDomain
1343 Red Isle Private Investment Inc. [Member] Member telesat:RedIslePrivateInvestmentsIncMember
1344 Loral Holdings Corporation [Member] Member telesat:LoralHoldingsCorporationMember
1345 Non-adjusting events after reporting period [axis] Axis ifrs-full:NonadjustingEventsAfterReportingPeriodAxis
1346 Non-adjusting events after reporting period [member] Member ifrs-full:NonadjustingEventsMember
1347 Types of share-based payment arrangements [axis] Axis ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
1348 Share-based payment arrangements [member] Member ifrs-full:SharebasedPaymentArrangementsMember
1349 Performance Vesting Option Plans [Member] Member telesat:PerformanceVestingOptionPlansMember
1350 Time Vesting Option Plans [Member] Member telesat:TimeVestingOptionPlansMember
1351 Performance Unvesting Option Plans [Member] Member telesat:PerformanceUnvestingOptionPlansMember
1352 Time Unvesting Option Plans [Member] Member telesat:TimeUnvestingOptionPlansMember
1353 Disclosure of transactions between related parties [line items] LineItems ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesLineItems
1354 Special cash distribution to shareholders Concept (Monetary) For Period Debit telesat:SpecialCashDistributiontoShareholders
1355 Number of options granted Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsGrantedInSharebasedPaymentArrangement
1356 Repurchased vested stock options Concept (Shares) For Period telesat:NumberOfRepurchasedVestedStockOptions
1357 Total cash consideration paid to repurchase of vested stock options Concept (Monetary) For Period Debit telesat:TotalCashConsiderationPaidToRepurchaseOfVestedStockOptions
1358 Total cash consideration paid to key management personnel to repurchase of vested stock options Concept (Monetary) For Period Debit telesat:TotalCashConsiderationPaidToKeyManagementPersonnelToRepurchaseOfVestedStockOptions
1359 Contributions made to defined benefit pension plans Concept (Monetary) For Period Debit ifrs-full:PostemploymentBenefitExpenseDefinedContributionPlans
1360 Special payment to stock option holders Concept (Monetary) For Period Debit telesat:SpecialPaymentToStockOptionHolders
1361 Number of option exchange Concept (Decimal) For Period telesat:NumberOfShareOptionsExchangedInSharebasedPaymentArrangement
1362 Stock appreciation rights Concept (Shares) For Period telesat:StockAppreciationRights
1363 Number of shares issued Concept (Shares) As Of ifrs-full:NumberOfSharesIssued
1364 Description of vesting peiod Concept (Text/String) For Period ifrs-full:DescriptionOfVestingRequirementsForSharebasedPaymentArrangement

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