| Line |
Label |
Object Class |
Period Type |
Balance |
Report ElementName |
| 1 |
0001000 - Document - Document and Entity Information |
Network |
* |
* |
http://www.cgi.com/role/DocumentAndEntityInformation |
| 2 |
Entities [Table] |
Table |
* |
* |
dei:EntitiesTable |
| 3 |
Classes of share capital [axis] |
Axis |
|
|
ifrs-full:ClassesOfShareCapitalAxis |
| 4 |
Share capital [member] |
Member |
|
|
ifrs-full:ClassesOfShareCapitalMember |
| 5 |
Class A subordinate voting shares |
Member |
|
|
gib:ClassASubordinateVotingSharesMember |
| 6 |
Class B multiple voting shares |
Member |
|
|
gib:ClassBMultipleVotingSharesMember |
| 7 |
Entity Information [Line Items] |
LineItems |
|
|
dei:EntityInformationLineItems |
| 8 |
Entity Common Stock, Shares Outstanding |
Concept (Shares) |
As Of |
|
dei:EntityCommonStockSharesOutstanding |
| 9 |
Entity Registrant Name |
Concept (Text/String) |
For Period |
|
dei:EntityRegistrantName |
| 10 |
Entity Central Index Key |
Concept (CIK Number) |
For Period |
|
dei:EntityCentralIndexKey |
| 11 |
Current Fiscal Year End Date |
Concept (Month/Day) |
For Period |
|
dei:CurrentFiscalYearEndDate |
| 12 |
Document Type |
Concept (Submission Type) |
For Period |
|
dei:DocumentType |
| 13 |
Document Period End Date |
Concept (Date) |
For Period |
|
dei:DocumentPeriodEndDate |
| 14 |
Document Fiscal Year Focus |
Concept (Year) |
For Period |
|
dei:DocumentFiscalYearFocus |
| 15 |
Document Fiscal Period Focus |
Concept (Fiscal Period) |
For Period |
|
dei:DocumentFiscalPeriodFocus |
| 16 |
Amendment Flag |
Concept (Yes/No) |
For Period |
|
dei:AmendmentFlag |
| 17 |
Entity Current Reporting Status |
Concept (Yes/No) |
For Period |
|
dei:EntityCurrentReportingStatus |
| 18 |
1001000 - Statement - Consolidated Statements of Earnings |
Network |
* |
* |
http://www.cgi.com/role/ConsolidatedStatementsOfEarnings |
| 19 |
Implied Table |
Table |
* |
* |
implied:Table |
| 20 |
Profit or loss [abstract] |
Abstract |
|
|
ifrs-full:IncomeStatementAbstract |
| 21 |
Revenue |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:Revenue |
| 22 |
Operating expenses |
Abstract |
|
|
ifrs-full:MaterialIncomeAndExpenseAbstract |
| 23 |
Costs of services, selling and administrative |
Concept (Monetary) |
For Period |
Debit |
gib:CostOfSalesSellingGeneralAndAdministrativeExpense |
| 24 |
Acquisition-related and integration costs |
Concept (Monetary) |
For Period |
|
ifrs-full:AmountsRecognisedForTransactionRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombination |
| 25 |
Restructuring costs |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ExpenseOfRestructuringActivities |
| 26 |
Net finance costs |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:FinanceIncomeCost |
| 27 |
Foreign exchange loss |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss |
| 28 |
Operating expenses |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:OperatingExpense |
| 29 |
Earnings before income taxes |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ProfitLossBeforeTax |
| 30 |
Income tax expense |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:IncomeTaxExpenseContinuingOperations |
| 31 |
Net earnings |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ProfitLoss |
| 32 |
Earnings per share |
Abstract |
|
|
ifrs-full:BasicAndDilutedEarningsPerShareAbstract |
| 33 |
Basic earnings per share (CAD per share) |
Concept (Share) |
For Period |
|
ifrs-full:BasicEarningsLossPerShare |
| 34 |
Diluted earnings per share (CAD per share) |
Concept (Share) |
For Period |
|
ifrs-full:DilutedEarningsLossPerShare |
| 35 |
1002000 - Statement - Consolidated Statements of Comprehensive Income |
Network |
* |
* |
http://www.cgi.com/role/ConsolidatedStatementsOfComprehensiveIncome |
| 36 |
Implied Table |
Table |
* |
* |
implied:Table |
| 37 |
Statement of comprehensive income [abstract] |
Abstract |
|
|
ifrs-full:StatementOfComprehensiveIncomeAbstract |
| 38 |
Net earnings |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ProfitLoss |
| 39 |
Items that will be reclassified subsequently to net earnings (net of income taxes): |
Abstract |
|
|
ifrs-full:ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract |
| 40 |
Net unrealized gains (losses) on translating financial statements of foreign operations |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation |
| 41 |
Net (losses) gains on derivative financial instruments and on translating long-term debt designated as hedges of net investments in foreign operations |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:OtherComprehensiveIncomeNetOfTaxHedgesOfNetInvestmentsInForeignOperations |
| 42 |
Net unrealized losses on cash flow hedges |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:OtherComprehensiveIncomeNetOfTaxCashFlowHedges |
| 43 |
Net unrealized losses on available-for-sale investments |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:OtherComprehensiveIncomeNetOfTaxAvailableforsaleFinancialAssets |
| 44 |
Items that will not be reclassified subsequently to net earnings (net of income taxes): |
Abstract |
|
|
ifrs-full:ComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTaxAbstract |
| 45 |
Net remeasurement gains (losses) on defined benefit plans |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans |
| 46 |
Other comprehensive income (loss) |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:OtherComprehensiveIncome |
| 47 |
Comprehensive income |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ComprehensiveIncome |
| 48 |
1003000 - Statement - Consolidated Balance Sheets |
Network |
* |
* |
http://www.cgi.com/role/ConsolidatedBalanceSheets |
| 49 |
Implied Table |
Table |
* |
* |
implied:Table |
| 50 |
Statement of financial position [abstract] |
Abstract |
|
|
ifrs-full:StatementOfFinancialPositionAbstract |
| 51 |
Assets |
Abstract |
|
|
ifrs-full:AssetsAbstract |
| 52 |
Current assets |
Abstract |
|
|
ifrs-full:CurrentAssetsAbstract |
| 53 |
Cash and cash equivalents |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CashAndCashEquivalents |
| 54 |
Accounts receivable |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:TradeAndOtherCurrentReceivables |
| 55 |
Work in progress |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:WorkInProgress |
| 56 |
Current derivative financial instruments |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentDerivativeFinancialAssets |
| 57 |
Prepaid expenses and other current assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentPrepaymentsAndOtherCurrentAssets |
| 58 |
Income taxes |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentTaxAssetsCurrent |
| 59 |
Total current assets before funds held for clients |
Concept (Monetary) |
As Of |
Debit |
gib:CurrentAssetsBeforeAssetsToWhichSignificantRestrictionsApply |
| 60 |
Funds held for clients |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:AssetsToWhichSignificantRestrictionsApply |
| 61 |
Total current assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentAssets |
| 62 |
Property, plant and equipment |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:PropertyPlantAndEquipment |
| 63 |
Contract costs |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:NoncurrentContractAssets |
| 64 |
Intangible assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:IntangibleAssetsOtherThanGoodwill |
| 65 |
Other long-term assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:OtherNoncurrentNonfinancialAssets |
| 66 |
Long-term financial assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:NoncurrentFinancialAssets |
| 67 |
Deferred tax assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:DeferredTaxAssets |
| 68 |
Goodwill |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:Goodwill |
| 69 |
Total assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:Assets |
| 70 |
Liabilities |
Abstract |
|
|
ifrs-full:LiabilitiesAbstract |
| 71 |
Current liabilities |
Abstract |
|
|
ifrs-full:CurrentLiabilitiesAbstract |
| 72 |
Accounts payable and accrued liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:TradeAndOtherCurrentPayables |
| 73 |
Accrued compensation |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:ShorttermEmployeeBenefitsAccruals |
| 74 |
Current derivative financial instruments |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentDerivativeFinancialLiabilities |
| 75 |
Deferred revenue |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:DeferredIncomeClassifiedAsCurrent |
| 76 |
Income taxes |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentTaxLiabilitiesCurrent |
| 77 |
Provisions |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentProvisions |
| 78 |
Current portion of long-term debt |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentPortionOfLongtermBorrowings |
| 79 |
Total current liabilities before clients’ funds obligations |
Concept (Monetary) |
As Of |
Credit |
gib:CurrentLiabilitiesBeforeLiabilitiesToWhichSignificantRestrictionsApply |
| 80 |
Clients’ funds obligations |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:LiabilitiesToWhichSignificantRestrictionsApply |
| 81 |
Total current liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentLiabilities |
| 82 |
Long-term income taxes |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentTaxLiabilitiesNoncurrent |
| 83 |
Long-term provisions |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:NoncurrentProvisions |
| 84 |
Long-term debt |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:LongtermBorrowings |
| 85 |
Other long-term liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:OtherNoncurrentLiabilities |
| 86 |
Long-term derivative financial instruments |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:NoncurrentDerivativeFinancialLiabilities |
| 87 |
Deferred tax liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:DeferredTaxLiabilities |
| 88 |
Retirement benefits obligations |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:NoncurrentRecognisedLiabilitiesDefinedBenefitPlan |
| 89 |
Total liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:Liabilities |
| 90 |
Equity |
Abstract |
|
|
ifrs-full:EquityAbstract |
| 91 |
Retained earnings |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:RetainedEarnings |
| 92 |
Accumulated other comprehensive income |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:AccumulatedOtherComprehensiveIncome |
| 93 |
Capital stock |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:IssuedCapital |
| 94 |
Contributed surplus |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:AdditionalPaidinCapital |
| 95 |
Total equity |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:Equity |
| 96 |
Total equity and liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:EquityAndLiabilities |
| 97 |
1004000 - Statement - Consolidated Statements of Changes in Equity |
Network |
* |
* |
http://www.cgi.com/role/ConsolidatedStatementsOfChangesInEquity |
| 98 |
Statement of changes in equity [table] |
Table |
* |
* |
ifrs-full:StatementOfChangesInEquityTable |
| 99 |
Components of equity [axis] |
Axis |
|
|
ifrs-full:ComponentsOfEquityAxis |
| 100 |
Equity [member] |
Member |
|
|
ifrs-full:EquityMember |
| 101 |
Retained earnings |
Member |
|
|
ifrs-full:RetainedEarningsMember |
| 102 |
Accumulated other comprehensive income |
Member |
|
|
ifrs-full:AccumulatedOtherComprehensiveIncomeMember |
| 103 |
Capital stock |
Member |
|
|
ifrs-full:IssuedCapitalMember |
| 104 |
Contributed surplus |
Member |
|
|
ifrs-full:AdditionalPaidinCapitalMember |
| 105 |
Statement of changes in equity [line items] |
LineItems |
|
|
ifrs-full:StatementOfChangesInEquityLineItems |
| 106 |
Beginning balance |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:Equity |
| 107 |
Net earnings |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ProfitLoss |
| 108 |
Other comprehensive income |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:OtherComprehensiveIncome |
| 109 |
Comprehensive income |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ComprehensiveIncome |
| 110 |
Share-based payment costs |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions |
| 111 |
Income tax impact associated with stock options |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:DecreaseIncreaseThroughTaxOnSharebasedPaymentTransactions |
| 112 |
Exercise of stock options |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:IncreaseDecreaseThroughExerciseOfOptions |
| 113 |
Exercise of performance share units (PSUs) |
Concept (Monetary) |
For Period |
Credit |
gib:IncreaseDecreaseThroughExerciseOfOtherEquityInstrumentsEquity |
| 114 |
Purchase for cancellation of Class A subordinate voting shares |
Concept (Monetary) |
For Period |
Debit |
gib:PurchaseOfTreasurySharesForCancellation |
| 115 |
Purchase of Class A subordinate voting shares held in trusts |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:PurchaseOfTreasuryShares |
| 116 |
Resale of Class A subordinate voting shares held in trusts |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:SaleOrIssueOfTreasuryShares |
| 117 |
Ending balance |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:Equity |
| 118 |
1005000 - Statement - Consolidated Statements of Cash Flows |
Network |
* |
* |
http://www.cgi.com/role/ConsolidatedStatementsOfCashFlows |
| 119 |
Implied Table |
Table |
* |
* |
implied:Table |
| 120 |
Statement of cash flows [abstract] |
Abstract |
|
|
ifrs-full:StatementOfCashFlowsAbstract |
| 121 |
Operating activities |
Abstract |
|
|
ifrs-full:CashFlowsFromUsedInOperatingActivitiesAbstract |
| 122 |
Net earnings |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ProfitLoss |
| 123 |
Adjustments for: |
Abstract |
|
|
ifrs-full:AdjustmentsForReconcileProfitLossAbstract |
| 124 |
Amortization and depreciation |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdjustmentsForDepreciationAndAmortisationExpense |
| 125 |
Deferred income tax expense |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdjustmentsForDeferredTaxExpense |
| 126 |
Foreign exchange loss (gain) |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdjustmentsForUnrealisedForeignExchangeLossesGains |
| 127 |
Share-based payment costs |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdjustmentsForSharebasedPayments |
| 128 |
Net change in non-cash working capital items |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:IncreaseDecreaseInWorkingCapital |
| 129 |
Cash provided by operating activities |
Concept (Monetary) |
For Period |
|
ifrs-full:CashFlowsFromUsedInOperatingActivities |
| 130 |
Investing activities |
Abstract |
|
|
ifrs-full:CashFlowsFromUsedInInvestingActivitiesAbstract |
| 131 |
Business acquisitions (net of cash acquired) |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities |
| 132 |
Proceeds from sale of business |
Concept (Monetary) |
For Period |
Debit |
gib:ProceedsFromSaleOfBusinessClassifiedAsInvestingActivities |
| 133 |
Purchase of property, plant and equipment |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities |
| 134 |
Proceeds from sale of property, plant and equipment |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities |
| 135 |
Additions to contract costs |
Concept (Monetary) |
For Period |
Credit |
gib:PurchaseOfContractAssetsClassifiedAsInvestingActivities |
| 136 |
Additions to intangible assets |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities |
| 137 |
Purchase of long-term investments |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:PurchaseOfInvestmentsOtherThanInvestmentsAccountedForUsingEquityMethod |
| 138 |
Proceeds from sale of long-term investments |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ProceedsFromSalesOfInvestmentsOtherThanInvestmentsAccountedForUsingEquityMethod |
| 139 |
Cash used in investing activities |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:CashFlowsFromUsedInInvestingActivities |
| 140 |
Financing activities |
Abstract |
|
|
ifrs-full:CashFlowsFromUsedInFinancingActivitiesAbstract |
| 141 |
Net change in unsecured committed revolving credit facility |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:CashFlowsFromUsedInIncreaseDecreaseInCurrentBorrowings |
| 142 |
Increase of long-term debt |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ProceedsFromBorrowingsClassifiedAsFinancingActivities |
| 143 |
Repayment of long-term debt |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:RepaymentsOfBorrowingsClassifiedAsFinancingActivities |
| 144 |
Repayment of debt assumed in business acquisitions |
Concept (Monetary) |
For Period |
Credit |
gib:RepaymentsOfBorrowingsAssumedInABusinessCombinationClassifiedAsFinancingActivities |
| 145 |
Settlement of derivative financial instruments |
Concept (Monetary) |
For Period |
Credit |
gib:PaymentsForSettlementOfDerivativeFinancialInstrumentsClassifiedAsFinancingActivities |
| 146 |
Purchase of Class A subordinate voting shares held in trusts |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:PaymentsToAcquireOrRedeemEntitysShares |
| 147 |
Resale of Class A subordinate voting shares held in trusts |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ProceedsFromSaleOrIssueOfTreasuryShares |
| 148 |
Purchase and cancellation of Class A subordinate voting shares |
Concept (Monetary) |
For Period |
Credit |
gib:PaymentsToAcquireOrRedeemEntitysSharesAndCancellation |
| 149 |
Issuance of Class A subordinate voting shares |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ProceedsFromIssuingShares |
| 150 |
Cash used in financing activities |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:CashFlowsFromUsedInFinancingActivities |
| 151 |
Effect of foreign exchange rate changes on cash and cash equivalents |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalents |
| 152 |
Net increase (decrease) in cash and cash equivalents |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:IncreaseDecreaseInCashAndCashEquivalents |
| 153 |
Cash and cash equivalents, beginning of year |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CashAndCashEquivalents |
| 154 |
Cash and cash equivalents, end of year |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CashAndCashEquivalents |
| 155 |
2101100 - Disclosure - Description of business |
Network |
* |
* |
http://www.cgi.com/role/DescriptionOfBusiness |
| 156 |
Implied Table |
Table |
* |
* |
implied:Table |
| 157 |
Corporate Information And Statement Of IFRS Compliance [Abstract] |
Abstract |
|
|
gib:CorporateInformationAndStatementOfIFRSComplianceAbstract |
| 158 |
Description of business |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfNotesAndOtherExplanatoryInformationExplanatory |
| 159 |
2104100 - Disclosure - Basis of presentation |
Network |
* |
* |
http://www.cgi.com/role/BasisOfPresentation |
| 160 |
Implied Table |
Table |
* |
* |
implied:Table |
| 161 |
Corporate Information And Statement Of IFRS Compliance [Abstract] |
Abstract |
|
|
gib:CorporateInformationAndStatementOfIFRSComplianceAbstract |
| 162 |
Basis of presentation |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfBasisOfPreparationOfFinancialStatementsExplanatory |
| 163 |
2107100 - Disclosure - Summary of significant accounting policies |
Network |
* |
* |
http://www.cgi.com/role/SummaryOfSignificantAccountingPolicies |
| 164 |
Implied Table |
Table |
* |
* |
implied:Table |
| 165 |
Corporate Information And Statement Of IFRS Compliance [Abstract] |
Abstract |
|
|
gib:CorporateInformationAndStatementOfIFRSComplianceAbstract |
| 166 |
Summary of significant accounting policies |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfSummaryOfSignificantAccountingPoliciesExplanatory |
| 167 |
2110100 - Disclosure - Accounts receivable |
Network |
* |
* |
http://www.cgi.com/role/AccountsReceivable |
| 168 |
Implied Table |
Table |
* |
* |
implied:Table |
| 169 |
Subclassifications of assets, liabilities and equities [abstract] |
Abstract |
|
|
ifrs-full:SubclassificationsOfAssetsLiabilitiesAndEquitiesAbstract |
| 170 |
Accounts receivable |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfTradeAndOtherReceivablesExplanatory |
| 171 |
2113100 - Disclosure - Funds held for clients |
Network |
* |
* |
http://www.cgi.com/role/FundsHeldForClients |
| 172 |
Implied Table |
Table |
* |
* |
implied:Table |
| 173 |
Funds Held For Clients [Abstract] |
Abstract |
|
|
gib:FundsHeldForClientsAbstract |
| 174 |
Funds held for clients |
Concept (Text Block (HTML)) |
For Period |
|
gib:DisclosureOfFundsHeldForClientsTextBlock |
| 175 |
2116100 - Disclosure - Property, plant and equipment |
Network |
* |
* |
http://www.cgi.com/role/PropertyPlantAndEquipment |
| 176 |
Implied Table |
Table |
* |
* |
implied:Table |
| 177 |
Property, plant and equipment [abstract] |
Abstract |
|
|
ifrs-full:PropertyPlantAndEquipmentAbstract |
| 178 |
Disclosure of property, plant and equipment |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfPropertyPlantAndEquipmentExplanatory |
| 179 |
2119100 - Disclosure - Contract costs |
Network |
* |
* |
http://www.cgi.com/role/ContractCosts |
| 180 |
Implied Table |
Table |
* |
* |
implied:Table |
| 181 |
Revenue From Contracts With Customers [Abstract] |
Abstract |
|
|
gib:RevenueFromContractsWithCustomersAbstract |
| 182 |
Contract costs |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfRevenueFromContractsWithCustomersExplanatory |
| 183 |
2122100 - Disclosure - Intangible assets |
Network |
* |
* |
http://www.cgi.com/role/IntangibleAssets |
| 184 |
Implied Table |
Table |
* |
* |
implied:Table |
| 185 |
Intangible Assets [Abstract] |
Abstract |
|
|
gib:IntangibleAssetsAbstract |
| 186 |
Intangible assets |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfIntangibleAssetsExplanatory |
| 187 |
2125100 - Disclosure - Other long-term assets |
Network |
* |
* |
http://www.cgi.com/role/OtherLongTermAssets |
| 188 |
Implied Table |
Table |
* |
* |
implied:Table |
| 189 |
Subclassifications of assets, liabilities and equities [abstract] |
Abstract |
|
|
ifrs-full:SubclassificationsOfAssetsLiabilitiesAndEquitiesAbstract |
| 190 |
Other long-term assets |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfOtherNoncurrentAssetsExplanatory |
| 191 |
2128100 - Disclosure - Long-term financial assets |
Network |
* |
* |
http://www.cgi.com/role/LongTermFinancialAssets |
| 192 |
Implied Table |
Table |
* |
* |
implied:Table |
| 193 |
Subclassifications of assets, liabilities and equities [abstract] |
Abstract |
|
|
ifrs-full:SubclassificationsOfAssetsLiabilitiesAndEquitiesAbstract |
| 194 |
Long-term financial assets |
Concept (Text Block (HTML)) |
For Period |
|
gib:DisclosureOfNonCurrentFinancialAssetsTextBlock |
| 195 |
2131100 - Disclosure - Goodwill |
Network |
* |
* |
http://www.cgi.com/role/Goodwill |
| 196 |
Implied Table |
Table |
* |
* |
implied:Table |
| 197 |
Intangible Assets [Abstract] |
Abstract |
|
|
gib:IntangibleAssetsAbstract |
| 198 |
Goodwill |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfGoodwillExplanatory |
| 199 |
2134100 - Disclosure - Provisions |
Network |
* |
* |
http://www.cgi.com/role/Provisions |
| 200 |
Implied Table |
Table |
* |
* |
implied:Table |
| 201 |
Subclassifications of assets, liabilities and equities [abstract] |
Abstract |
|
|
ifrs-full:SubclassificationsOfAssetsLiabilitiesAndEquitiesAbstract |
| 202 |
Provisions |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfProvisionsExplanatory |
| 203 |
2137100 - Disclosure - Long-term debt |
Network |
* |
* |
http://www.cgi.com/role/LongTermDebt |
| 204 |
Implied Table |
Table |
* |
* |
implied:Table |
| 205 |
Financial Instruments [Abstract] |
Abstract |
|
|
gib:FinancialInstrumentsAbstract |
| 206 |
Long-term debt |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfBorrowingsExplanatory |
| 207 |
2140100 - Disclosure - Other long-term liabilities |
Network |
* |
* |
http://www.cgi.com/role/OtherLongTermLiabilities |
| 208 |
Implied Table |
Table |
* |
* |
implied:Table |
| 209 |
Subclassifications of assets, liabilities and equities [abstract] |
Abstract |
|
|
ifrs-full:SubclassificationsOfAssetsLiabilitiesAndEquitiesAbstract |
| 210 |
Other long-term liabilities |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfOtherNoncurrentLiabilitiesExplanatory |
| 211 |
2143100 - Disclosure - Income taxes |
Network |
* |
* |
http://www.cgi.com/role/IncomeTaxes |
| 212 |
Implied Table |
Table |
* |
* |
implied:Table |
| 213 |
Income Taxes [Abstract] |
Abstract |
|
|
gib:IncomeTaxesAbstract |
| 214 |
Income taxes |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfIncomeTaxExplanatory |
| 215 |
2146100 - Disclosure - Employee benefits |
Network |
* |
* |
http://www.cgi.com/role/EmployeeBenefits |
| 216 |
Implied Table |
Table |
* |
* |
implied:Table |
| 217 |
Employee Benefits [Abstract] |
Abstract |
|
|
gib:EmployeeBenefitsAbstract |
| 218 |
Employee benefits |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfEmployeeBenefitsExplanatory |
| 219 |
2149100 - Disclosure - Accumulated other comprehensive income |
Network |
* |
* |
http://www.cgi.com/role/AccumulatedOtherComprehensiveIncome |
| 220 |
Implied Table |
Table |
* |
* |
implied:Table |
| 221 |
Analysis Of Other Comprehensive Income By Item [Abstract] |
Abstract |
|
|
gib:AnalysisOfOtherComprehensiveIncomeByItemAbstract |
| 222 |
Accumulated other comprehensive income |
Concept (Text Block (HTML)) |
For Period |
|
gib:DisclosureOfAccumulatedOtherComprehensiveIncomeTextBlock |
| 223 |
2152100 - Disclosure - Capital stock |
Network |
* |
* |
http://www.cgi.com/role/CapitalStock |
| 224 |
Implied Table |
Table |
* |
* |
implied:Table |
| 225 |
Share Capital , Reserves And Other Equity Interest [Abstract] |
Abstract |
|
|
gib:ShareCapitalReservesAndOtherEquityInterestAbstract |
| 226 |
Capital stock |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory |
| 227 |
2155100 - Disclosure - Share-based payments |
Network |
* |
* |
http://www.cgi.com/role/ShareBasedPayments |
| 228 |
Implied Table |
Table |
* |
* |
implied:Table |
| 229 |
Share-Based Payment Arrangements [Abstract] |
Abstract |
|
|
gib:ShareBasedPaymentArrangementsAbstract |
| 230 |
Share-based payments |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfSharebasedPaymentArrangementsExplanatory |
| 231 |
2158100 - Disclosure - Earnings per share |
Network |
* |
* |
http://www.cgi.com/role/EarningsPerShare |
| 232 |
Implied Table |
Table |
* |
* |
implied:Table |
| 233 |
Earnings per share [abstract] |
Abstract |
|
|
ifrs-full:EarningsPerShareAbstract |
| 234 |
Earnings Per Share |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfEarningsPerShareExplanatory |
| 235 |
2161100 - Disclosure - Construction contracts in progress |
Network |
* |
* |
http://www.cgi.com/role/ConstructionContractsInProgress |
| 236 |
Implied Table |
Table |
* |
* |
implied:Table |
| 237 |
Construction Contracts [Abstract] |
Abstract |
|
|
gib:ConstructionContractsAbstract |
| 238 |
Construction contracts in progress |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfRecognisedRevenueFromConstructionContractsExplanatory |
| 239 |
2164100 - Disclosure - Cost of services, selling and administrative |
Network |
* |
* |
http://www.cgi.com/role/CostOfServicesSellingAndAdministrative |
| 240 |
Implied Table |
Table |
* |
* |
implied:Table |
| 241 |
Analysis of income and expense [abstract] |
Abstract |
|
|
ifrs-full:AnalysisOfIncomeAndExpenseAbstract |
| 242 |
Cost of services, selling and administrative |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfExpensesExplanatory |
| 243 |
2167100 - Disclosure - Amortization and depreciation |
Network |
* |
* |
http://www.cgi.com/role/AmortizationAndDepreciation |
| 244 |
Implied Table |
Table |
* |
* |
implied:Table |
| 245 |
Analysis of income and expense [abstract] |
Abstract |
|
|
ifrs-full:AnalysisOfIncomeAndExpenseAbstract |
| 246 |
Amortization and depreciation |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfDepreciationAndAmortisationExpenseExplanatory |
| 247 |
2170100 - Disclosure - Restructuring costs |
Network |
* |
* |
http://www.cgi.com/role/RestructuringCosts |
| 248 |
Implied Table |
Table |
* |
* |
implied:Table |
| 249 |
Restructuring And Related Activities 1 [Abstract] |
Abstract |
|
|
gib:RestructuringAndRelatedActivities1Abstract |
| 250 |
Restructuring costs |
Concept (Text Block (HTML)) |
For Period |
|
gib:RestructuringAndRelatedActivitiesDisclosure1TextBlock |
| 251 |
2173100 - Disclosure - Net finance costs |
Network |
* |
* |
http://www.cgi.com/role/NetFinanceCosts |
| 252 |
Implied Table |
Table |
* |
* |
implied:Table |
| 253 |
Analysis of income and expense [abstract] |
Abstract |
|
|
ifrs-full:AnalysisOfIncomeAndExpenseAbstract |
| 254 |
Finance costs |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfFinanceIncomeExpenseExplanatory |
| 255 |
2176100 - Disclosure - Investments in subsidiaries |
Network |
* |
* |
http://www.cgi.com/role/InvestmentsInSubsidiaries |
| 256 |
Implied Table |
Table |
* |
* |
implied:Table |
| 257 |
Business Combinations 1 [Abstract] |
Abstract |
|
|
gib:BusinessCombinations1Abstract |
| 258 |
Investments in subsidiaries |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfBusinessCombinationsExplanatory |
| 259 |
2179100 - Disclosure - Supplementary cash flow information |
Network |
* |
* |
http://www.cgi.com/role/SupplementaryCashFlowInformation |
| 260 |
Implied Table |
Table |
* |
* |
implied:Table |
| 261 |
Cash Flow Statement [Abstract] |
Abstract |
|
|
gib:CashFlowStatementAbstract |
| 262 |
Supplementary cash flow information |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfCashFlowStatementExplanatory |
| 263 |
2182100 - Disclosure - Segmented information |
Network |
* |
* |
http://www.cgi.com/role/SegmentedInformation |
| 264 |
Implied Table |
Table |
* |
* |
implied:Table |
| 265 |
Operating segments [Abstract] |
Abstract |
|
|
gib:OperatingsegmentsAbstract |
| 266 |
Segmented information |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfEntitysReportableSegmentsExplanatory |
| 267 |
2185100 - Disclosure - Related party transactions |
Network |
* |
* |
http://www.cgi.com/role/RelatedPartyTransactions |
| 268 |
Implied Table |
Table |
* |
* |
implied:Table |
| 269 |
Related Party [Abstract] |
Abstract |
|
|
gib:RelatedPartyAbstract |
| 270 |
Related party transactions |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfRelatedPartyExplanatory |
| 271 |
2188100 - Disclosure - Commitments, contingencies and guarantees |
Network |
* |
* |
http://www.cgi.com/role/CommitmentsContingenciesAndGuarantees |
| 272 |
Implied Table |
Table |
* |
* |
implied:Table |
| 273 |
Other Provisions, Contingent Liabilities And Contingent Assets [Abstract] |
Abstract |
|
|
gib:OtherProvisionsContingentLiabilitiesAndContingentAssetsAbstract |
| 274 |
Commitments, contingencies and guarantees |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfOtherProvisionsContingentLiabilitiesAndContingentAssetsExplanatory |
| 275 |
2191100 - Disclosure - Financial instruments |
Network |
* |
* |
http://www.cgi.com/role/FinancialInstruments |
| 276 |
Implied Table |
Table |
* |
* |
implied:Table |
| 277 |
Financial Instruments [Abstract] |
Abstract |
|
|
gib:FinancialInstrumentsAbstract |
| 278 |
Financial instruments |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfFinancialInstrumentsExplanatory |
| 279 |
2194100 - Disclosure - Capital risk management |
Network |
* |
* |
http://www.cgi.com/role/CapitalRiskManagement |
| 280 |
Implied Table |
Table |
* |
* |
implied:Table |
| 281 |
Corporate Information And Statement Of IFRS Compliance [Abstract] |
Abstract |
|
|
gib:CorporateInformationAndStatementOfIFRSComplianceAbstract |
| 282 |
Capital risk management |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalExplanatory |
| 283 |
2207201 - Disclosure - Summary of significant accounting policies (Policies) |
Network |
* |
* |
http://www.cgi.com/role/SummaryOfSignificantAccountingPoliciesPolicies |
| 284 |
Implied Table |
Table |
* |
* |
implied:Table |
| 285 |
Corporate Information And Statement Of IFRS Compliance [Abstract] |
Abstract |
|
|
gib:CorporateInformationAndStatementOfIFRSComplianceAbstract |
| 286 |
STATEMENT OF IFRS COMPLIANCE |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:StatementOfIFRSCompliance |
| 287 |
BASIS OF CONSOLIDATION |
Concept (Text Block (HTML)) |
For Period |
|
gib:DescriptionOfAccountingPolicyForBasisOfConsolidationPolicyTextBlock |
| 288 |
BASIS OF MEASUREMENT |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:ExplanationOfMeasurementBasesUsedInPreparingFinancialStatements |
| 289 |
USE OF JUDGEMENTS AND ESTIMATES |
Concept (Text Block (HTML)) |
For Period |
|
gib:DescriptionOfAccountingPolicyForUseOfJudgementsAndEstimatesPolicyTextBlock |
| 290 |
REVENUE RECOGNITION, WORK IN PROGRESS AND DEFERRED REVENUE |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForRecognitionOfRevenue |
| 291 |
CASH AND CASH EQUIVALENTS |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyToDetermineComponentsOfCashAndCashEquivalents |
| 292 |
FUNDS HELD FOR CLIENTS AND CLIENTS’ FUNDS OBLIGATIONS |
Concept (Text Block (HTML)) |
For Period |
|
gib:DescriptionOfAccountingPolicyForFundsHeldForClientsAndClientsFundsObligationsPolicyTextBlock |
| 293 |
PROPERTY, PLANT AND EQUIPMENT |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory |
| 294 |
LEASES |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForLeasesExplanatory |
| 295 |
CONTRACT COSTS |
Concept (Text Block (HTML)) |
For Period |
|
gib:DescriptionOfAccountingPolicyForContractCostsPolicyTextBlock |
| 296 |
INTANGIBLE ASSETS |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForIntangibleAssetsOtherThanGoodwillExplanatory |
| 297 |
IMPAIRMENT OF PP&E, INTANGIBLE ASSETS AND GOODWILL |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForImpairmentOfAssetsExplanatory |
| 298 |
LONG-TERM FINANCIAL ASSETS |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForFinancialAssetsExplanatory |
| 299 |
BUSINESS COMBINATIONS |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForBusinessCombinationsAndGoodwillExplanatory |
| 300 |
EARNINGS PER SHARE |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForEarningsPerShareExplanatory |
| 301 |
RESEARCH AND SOFTWARE DEVELOPMENT COSTS |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForResearchAndDevelopmentExpenseExplanatory |
| 302 |
TAX CREDITS |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForTaxesOtherThanIncomeTaxExplanatory |
| 303 |
INCOME TAXES |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForIncomeTaxExplanatory |
| 304 |
PROVISIONS |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForProvisionsExplanatory |
| 305 |
TRANSLATION OF FOREIGN CURRENCIES |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory |
| 306 |
SHARE-BASED PAYMENTS |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory |
| 307 |
FINANCIAL INSTRUMENTS |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatory |
| 308 |
DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGING TRANSACTIONS |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForDerivativeFinancialInstrumentsAndHedgingExplanatory |
| 309 |
EMPLOYEE BENEFITS |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForEmployeeBenefitsExplanatory |
| 310 |
FUTURE ACCOUNTING STANDARD CHANGES |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretations |
| 311 |
2307302 - Disclosure - Summary of significant accounting policies (Tables) |
Network |
* |
* |
http://www.cgi.com/role/SummaryOfSignificantAccountingPoliciesTables |
| 312 |
Implied Table |
Table |
* |
* |
implied:Table |
| 313 |
Corporate Information And Statement Of IFRS Compliance [Abstract] |
Abstract |
|
|
gib:CorporateInformationAndStatementOfIFRSComplianceAbstract |
| 314 |
Disclosure of Estimated Useful Lives of Property, Plant and Equipment |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory |
| 315 |
Disclosure of Estimated Useful Lives of Intangible Assets |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfDetailedInformationAboutIntangibleAssetsExplanatory |
| 316 |
2310301 - Disclosure - Accounts receivable (Tables) |
Network |
* |
* |
http://www.cgi.com/role/AccountsReceivableTables |
| 317 |
Implied Table |
Table |
* |
* |
implied:Table |
| 318 |
Subclassifications of assets, liabilities and equities [abstract] |
Abstract |
|
|
ifrs-full:SubclassificationsOfAssetsLiabilitiesAndEquitiesAbstract |
| 319 |
Disclosure of Accounts Receivable |
Concept (Text Block (HTML)) |
For Period |
|
gib:DisclosureOfDetailedInformationOnTradeAndOtherReceivablesExplanatoryTableTextBlock |
| 320 |
2313301 - Disclosure - Funds held for clients (Tables) |
Network |
* |
* |
http://www.cgi.com/role/FundsHeldForClientsTables |
| 321 |
Implied Table |
Table |
* |
* |
implied:Table |
| 322 |
Funds Held For Clients [Abstract] |
Abstract |
|
|
gib:FundsHeldForClientsAbstract |
| 323 |
Disclosure of Funds Held For Clients |
Concept (Text Block (HTML)) |
For Period |
|
gib:DisclosureOfDetailedInformationOnFundsHeldForClientsExplanatoryTableTextBlock |
| 324 |
2316301 - Disclosure - Property, plant and equipment (Tables) |
Network |
* |
* |
http://www.cgi.com/role/PropertyPlantAndEquipmentTables |
| 325 |
Implied Table |
Table |
* |
* |
implied:Table |
| 326 |
Property, plant and equipment [abstract] |
Abstract |
|
|
ifrs-full:PropertyPlantAndEquipmentAbstract |
| 327 |
Disclosure of detailed information about property, plant and equipment |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory |
| 328 |
Disclosure of recognised finance lease as assets by lessee |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfRecognisedFinanceLeaseAsAssetsByLesseeExplanatory |
| 329 |
2319301 - Disclosure - Contract costs (Tables) |
Network |
* |
* |
http://www.cgi.com/role/ContractCostsTables |
| 330 |
Implied Table |
Table |
* |
* |
implied:Table |
| 331 |
Revenue From Contracts With Customers [Abstract] |
Abstract |
|
|
gib:RevenueFromContractsWithCustomersAbstract |
| 332 |
Disclosure of Contract Costs |
Concept (Text Block (HTML)) |
For Period |
|
gib:DisclosureOfDetailedInformationOnContractCostsExplanatoryTableTextBlock |
| 333 |
2322301 - Disclosure - Intangible assets (Tables) |
Network |
* |
* |
http://www.cgi.com/role/IntangibleAssetsTables |
| 334 |
Implied Table |
Table |
* |
* |
implied:Table |
| 335 |
Intangible Assets [Abstract] |
Abstract |
|
|
gib:IntangibleAssetsAbstract |
| 336 |
Disclosure of detailed information about intangible assets |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfDetailedInformationAboutIntangibleAssetsExplanatory |
| 337 |
2325301 - Disclosure - Other long-term assets (Tables) |
Network |
* |
* |
http://www.cgi.com/role/OtherLongTermAssetsTables |
| 338 |
Implied Table |
Table |
* |
* |
implied:Table |
| 339 |
Subclassifications of assets, liabilities and equities [abstract] |
Abstract |
|
|
ifrs-full:SubclassificationsOfAssetsLiabilitiesAndEquitiesAbstract |
| 340 |
Disclosure of Other Long-Term Assets |
Concept (Text Block (HTML)) |
For Period |
|
gib:DisclosureOfDetailedInformationOnOtherNonCurrentAssetsExplanatoryTableTextBlock |
| 341 |
2328301 - Disclosure - Long-term financial assets (Tables) |
Network |
* |
* |
http://www.cgi.com/role/LongTermFinancialAssetsTables |
| 342 |
Implied Table |
Table |
* |
* |
implied:Table |
| 343 |
Subclassifications of assets, liabilities and equities [abstract] |
Abstract |
|
|
ifrs-full:SubclassificationsOfAssetsLiabilitiesAndEquitiesAbstract |
| 344 |
Disclosure of Long-Term Financial Assets |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfFinancialAssetsExplanatory |
| 345 |
2331301 - Disclosure - Goodwill (Tables) |
Network |
* |
* |
http://www.cgi.com/role/GoodwillTables |
| 346 |
Implied Table |
Table |
* |
* |
implied:Table |
| 347 |
Intangible Assets [Abstract] |
Abstract |
|
|
gib:IntangibleAssetsAbstract |
| 348 |
Disclosure of variations in goodwill |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfReconciliationOfChangesInIntangibleAssetsAndGoodwillExplanatory |
| 349 |
Key assumptions for cash-generating units |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesExplanatory |
| 350 |
2334301 - Disclosure - Provisions (Tables) |
Network |
* |
* |
http://www.cgi.com/role/ProvisionsTables |
| 351 |
Implied Table |
Table |
* |
* |
implied:Table |
| 352 |
Subclassifications of assets, liabilities and equities [abstract] |
Abstract |
|
|
ifrs-full:SubclassificationsOfAssetsLiabilitiesAndEquitiesAbstract |
| 353 |
Disclosure of Movement in Provisions |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfOtherProvisionsExplanatory |
| 354 |
2337301 - Disclosure - Long-term debt (Tables) |
Network |
* |
* |
http://www.cgi.com/role/LongTermDebtTables |
| 355 |
Implied Table |
Table |
* |
* |
implied:Table |
| 356 |
Financial Instruments [Abstract] |
Abstract |
|
|
gib:FinancialInstrumentsAbstract |
| 357 |
Disclosure of Long-Term Debt |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsExplanatory |
| 358 |
Disclosure of Principal Repayments |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:MaturityAnalysisForNonderivativeFinancialLiabilities |
| 359 |
Disclosure of Minimum Finance Lease Payments |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeExplanatory |
| 360 |
2340301 - Disclosure - Other long-term liabilities (Tables) |
Network |
* |
* |
http://www.cgi.com/role/OtherLongTermLiabilitiesTables |
| 361 |
Implied Table |
Table |
* |
* |
implied:Table |
| 362 |
Subclassifications of assets, liabilities and equities [abstract] |
Abstract |
|
|
ifrs-full:SubclassificationsOfAssetsLiabilitiesAndEquitiesAbstract |
| 363 |
Disclosure of Other Long-Term Liabilities |
Concept (Text Block (HTML)) |
For Period |
|
gib:DisclosureOfDetailedInformationOnOtherNonCurrentLiabilitiesExplanatoryTableTextBlock |
| 364 |
2343301 - Disclosure - Income taxes (Tables) |
Network |
* |
* |
http://www.cgi.com/role/IncomeTaxesTables |
| 365 |
Implied Table |
Table |
* |
* |
implied:Table |
| 366 |
Income Taxes [Abstract] |
Abstract |
|
|
gib:IncomeTaxesAbstract |
| 367 |
Disclosure of Income Tax Expense |
Concept (Text Block (HTML)) |
For Period |
|
gib:DisclosureOfMajorComponentsOfTaxExpenseIncomeTableTextBlock |
| 368 |
Reconciliation of Effective Income Tax Rate from the Combined Federal and Provincial Canadian Statutory Tax Rate |
Concept (Text Block (HTML)) |
For Period |
|
gib:DisclosureOfReconciliationOfAverageEffectiveTaxRateAndApplicableTaxRateTableTextBlock |
| 369 |
Disclosure of the Continuity of Deferred Tax Balances |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsExplanatory |
| 370 |
2346301 - Disclosure - Employee benefits (Tables) |
Network |
* |
* |
http://www.cgi.com/role/EmployeeBenefitsTables |
| 371 |
Implied Table |
Table |
* |
* |
implied:Table |
| 372 |
Employee Benefits [Abstract] |
Abstract |
|
|
gib:EmployeeBenefitsAbstract |
| 373 |
Disclosure of net defined benefit liability (asset) |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetExplanatory |
| 374 |
Disclosure of fair value of plan assets |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfFairValueOfPlanAssetsExplanatory |
| 375 |
Disclosure of defined benefit plan expense |
Concept (Text Block (HTML)) |
For Period |
|
gib:DefinedBenefitPlanExpenseRecognizedInProfitOrLossExplanatoryTableTextBlock |
| 376 |
Disclosure of information regarding defined benefit plans |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfDefinedBenefitPlansExplanatory |
| 377 |
Disclosure of sensitivity analysis for actuarial assumptions |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfSensitivityAnalysisForActuarialAssumptionsExplanatory |
| 378 |
Disclosure of information about maturity profile of defined benefit obligation |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfInformationAboutMaturityProfileOfDefinedBenefitObligationExplanatory |
| 379 |
2349301 - Disclosure - Accumulated other comprehensive income (Tables) |
Network |
* |
* |
http://www.cgi.com/role/AccumulatedOtherComprehensiveIncomeTables |
| 380 |
Implied Table |
Table |
* |
* |
implied:Table |
| 381 |
Analysis Of Other Comprehensive Income By Item [Abstract] |
Abstract |
|
|
gib:AnalysisOfOtherComprehensiveIncomeByItemAbstract |
| 382 |
Schedule of accumulated other comprehensive income |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfAnalysisOfOtherComprehensiveIncomeByItemExplanatory |
| 383 |
2352301 - Disclosure - Capital stock (Tables) |
Network |
* |
* |
http://www.cgi.com/role/CapitalStockTables |
| 384 |
Implied Table |
Table |
* |
* |
implied:Table |
| 385 |
Share Capital , Reserves And Other Equity Interest [Abstract] |
Abstract |
|
|
gib:ShareCapitalReservesAndOtherEquityInterestAbstract |
| 386 |
Schedule of outstanding shares |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfClassesOfShareCapitalExplanatory |
| 387 |
2355301 - Disclosure - Share-based payments (Tables) |
Network |
* |
* |
http://www.cgi.com/role/ShareBasedPaymentsTables |
| 388 |
Implied Table |
Table |
* |
* |
implied:Table |
| 389 |
Share-Based Payment Arrangements [Abstract] |
Abstract |
|
|
gib:ShareBasedPaymentArrangementsAbstract |
| 390 |
Disclosure of Information Concerning Outstanding Stock Options |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfNumberAndWeightedAverageExercisePricesOfShareOptionsExplanatory |
| 391 |
Disclosure of Range of Exercise Prices of Outstanding Stock Options |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfRangeOfExercisePricesOfOutstandingShareOptionsExplanatory |
| 392 |
Disclosure of Number of Options and Weighted Average Remaining Contractual Life |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfNumberAndWeightedAverageRemainingContractualLifeOfOutstandingShareOptionsExplanatory |
| 393 |
Disclosure of Weighted Average Assumptions Used in the Calculation of Fair Value of Stock Options |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfIndirectMeasurementOfFairValueOfGoodsOrServicesReceivedShareOptionsGrantedDuringPeriodExplanatory |
| 394 |
Disclosure of Information Concerning PSUs |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfNumberAndWeightedAverageExercisePricesOfOtherEquityInstrumentsExplanatory |
| 395 |
Disclosure of Share-Based Payment Expense |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:ExplanationOfEffectOfSharebasedPaymentsOnProfitOrLoss |
| 396 |
2358301 - Disclosure - Earnings per share (Tables) |
Network |
* |
* |
http://www.cgi.com/role/EarningsPerShareTables |
| 397 |
Implied Table |
Table |
* |
* |
implied:Table |
| 398 |
Earnings per share [abstract] |
Abstract |
|
|
ifrs-full:EarningsPerShareAbstract |
| 399 |
Computation of basic and diluted earnings per share |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:EarningsPerShareExplanatory |
| 400 |
2361301 - Disclosure - Construction contracts in progress (Tables) |
Network |
* |
* |
http://www.cgi.com/role/ConstructionContractsInProgressTables |
| 401 |
Implied Table |
Table |
* |
* |
implied:Table |
| 402 |
Construction Contracts [Abstract] |
Abstract |
|
|
gib:ConstructionContractsAbstract |
| 403 |
Schedule of status of construction contracts still in progress |
Concept (Text Block (HTML)) |
For Period |
|
gib:DisclosureOfDetailedInformationOnRecognisedRevenueFromConstructionContractsExplanatoryTableTextBlock |
| 404 |
2364301 - Disclosure - Cost of services, selling and administrative (Tables) |
Network |
* |
* |
http://www.cgi.com/role/CostOfServicesSellingAndAdministrativeTables |
| 405 |
Implied Table |
Table |
* |
* |
implied:Table |
| 406 |
Analysis of income and expense [abstract] |
Abstract |
|
|
ifrs-full:AnalysisOfIncomeAndExpenseAbstract |
| 407 |
Disclosure of Cost of Services, Selling and Administrative |
Concept (Text Block (HTML)) |
For Period |
|
gib:DisclosureOfDetailedInformationOnCostOfSalesSellingGeneralAndAdministrativeExpenseExplanatoryTableTextBlock |
| 408 |
2367301 - Disclosure - Amortization and depreciation (Tables) |
Network |
* |
* |
http://www.cgi.com/role/AmortizationAndDepreciationTables |
| 409 |
Implied Table |
Table |
* |
* |
implied:Table |
| 410 |
Analysis of income and expense [abstract] |
Abstract |
|
|
ifrs-full:AnalysisOfIncomeAndExpenseAbstract |
| 411 |
Disclosure of Amortization and Depreciation |
Concept (Text Block (HTML)) |
For Period |
|
gib:DisclosureOfDetailedInformationOnAmortizationAndDepreciationExpenseTableTextBlock |
| 412 |
2373301 - Disclosure - Net finance costs (Tables) |
Network |
* |
* |
http://www.cgi.com/role/NetFinanceCostsTables |
| 413 |
Implied Table |
Table |
* |
* |
implied:Table |
| 414 |
Analysis of income and expense [abstract] |
Abstract |
|
|
ifrs-full:AnalysisOfIncomeAndExpenseAbstract |
| 415 |
Disclosure of finance costs |
Concept (Text Block (HTML)) |
For Period |
|
gib:DisclosureOfDetailedInformationOnFinanceCostsExplanatoryTableTextBlock |
| 416 |
2376301 - Disclosure - Investments in subsidiaries (Tables) |
Network |
* |
* |
http://www.cgi.com/role/InvestmentsInSubsidiariesTables |
| 417 |
Implied Table |
Table |
* |
* |
implied:Table |
| 418 |
Business Combinations 1 [Abstract] |
Abstract |
|
|
gib:BusinessCombinations1Abstract |
| 419 |
Disclosure of detailed information about business combinations |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfDetailedInformationAboutBusinessCombinationsExplanatory |
| 420 |
2379301 - Disclosure - Supplementary cash flow information (Tables) |
Network |
* |
* |
http://www.cgi.com/role/SupplementaryCashFlowInformationTables |
| 421 |
Implied Table |
Table |
* |
* |
implied:Table |
| 422 |
Cash Flow Statement [Abstract] |
Abstract |
|
|
gib:CashFlowStatementAbstract |
| 423 |
Disclosure of net change in non-cash working capital |
Concept (Text Block (HTML)) |
For Period |
|
gib:DisclosureOfNetChangeInNonCashWorkingCapitalExplanatoryTableTextBlock |
| 424 |
Disclosure of non-cash operating and investing activities |
Concept (Text Block (HTML)) |
For Period |
|
gib:DisclosureOfNonCashOperatingAndInvestingActivitiesExplanatoryTableTextBlock |
| 425 |
Disclosure of financing activities |
Concept (Text Block (HTML)) |
For Period |
|
gib:DisclosureOfFinancingActivitiesExplanatoryTableTextBlock |
| 426 |
Disclosure of interest and income taxes paid |
Concept (Text Block (HTML)) |
For Period |
|
gib:DisclosureOfInterestAndIncomeTaxesPaidExplanatoryTableTextBlock |
| 427 |
2382301 - Disclosure - Segmented information (Tables) |
Network |
* |
* |
http://www.cgi.com/role/SegmentedInformationTables |
| 428 |
Implied Table |
Table |
* |
* |
implied:Table |
| 429 |
Operating segments [Abstract] |
Abstract |
|
|
gib:OperatingsegmentsAbstract |
| 430 |
Disclosure of Operating Segment Information |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfOperatingSegmentsExplanatory |
| 431 |
Disclosure of Geographic Information |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfGeographicalAreasExplanatory |
| 432 |
Disclosure of Revenue Information Based on Services Provided by the Company |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfProductsAndServicesExplanatory |
| 433 |
2385301 - Disclosure - Related party transactions (Tables) |
Network |
* |
* |
http://www.cgi.com/role/RelatedPartyTransactionsTables |
| 434 |
Implied Table |
Table |
* |
* |
implied:Table |
| 435 |
Related Party [Abstract] |
Abstract |
|
|
gib:RelatedPartyAbstract |
| 436 |
Disclosure of transactions with subsidiaries |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfInterestsInSubsidiariesExplanatory |
| 437 |
Disclosure of compensation of key management personnel |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesExplanatory |
| 438 |
2388301 - Disclosure - Commitments, contingencies and guarantees (Tables) |
Network |
* |
* |
http://www.cgi.com/role/CommitmentsContingenciesAndGuaranteesTables |
| 439 |
Implied Table |
Table |
* |
* |
implied:Table |
| 440 |
Other Provisions, Contingent Liabilities And Contingent Assets [Abstract] |
Abstract |
|
|
gib:OtherProvisionsContingentLiabilitiesAndContingentAssetsAbstract |
| 441 |
Disclosure of Future Minimum Lease Payments Under Non-Cancellable Operating Leases |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeExplanatory |
| 442 |
Disclosure of Minimum Payments Under Long-Term Service and Other Agreements |
Concept (Text Block (HTML)) |
For Period |
|
gib:DisclosureOfCommitmentsForLongTermServiceAndOtherAgreementsExplanatoryTableTextBlock |
| 443 |
2391301 - Disclosure - Financial instruments (Tables) |
Network |
* |
* |
http://www.cgi.com/role/FinancialInstrumentsTables |
| 444 |
Implied Table |
Table |
* |
* |
implied:Table |
| 445 |
Financial Instruments [Abstract] |
Abstract |
|
|
gib:FinancialInstrumentsAbstract |
| 446 |
Disclosure of financial liabilities |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfFinancialLiabilitiesExplanatory |
| 447 |
Disclosure of fair value measurement of financial assets |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfFairValueMeasurementOfAssetsExplanatory |
| 448 |
Disclosure of fair value measurement of financial liabilities |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfFairValueMeasurementOfLiabilitiesExplanatory |
| 449 |
Disclosure of detailed information about hedging instruments |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfDetailedInformationAboutHedgingInstrumentsExplanatory |
| 450 |
Disclosure of sensitivity analysis for currency risk |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:SensitivityAnalysisForEachTypeOfMarketRisk |
| 451 |
Disclosure of maturity analysis for non-derivative financial liabilities |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:MaturityAnalysisForNonderivativeFinancialLiabilities |
| 452 |
Disclosure of maturity analysis for derivative financial liabilities |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:MaturityAnalysisForDerivativeFinancialLiabilities |
| 453 |
Disclosure of analysis of age of financial assets that are past due |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:AnalysisOfAgeOfFinancialAssetsThatArePastDueButNotImpaired |
| 454 |
2407403 - Disclosure - Summary of significant accounting policies - Disclosure of Estimated Useful Lives of Property, Plant and Equipment (Details) |
Network |
* |
* |
http://www.cgi.com/role/SummaryOfSignificantAccountingPoliciesDisclosureOfEstimatedUsefulLivesOfPropertyPlantAndEquipmentDetails |
| 455 |
Disclosure of detailed information about property, plant and equipment [table] |
Table |
* |
* |
ifrs-full:DisclosureOfPropertyPlantAndEquipmentTable |
| 456 |
Range [axis] |
Axis |
|
|
ifrs-full:RangeAxis |
| 457 |
Ranges [member] |
Member |
|
|
ifrs-full:RangesMember |
| 458 |
Minimum |
Member |
|
|
ifrs-full:BottomOfRangeMember |
| 459 |
Maximum |
Member |
|
|
ifrs-full:TopOfRangeMember |
| 460 |
Classes of property, plant and equipment [axis] |
Axis |
|
|
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis |
| 461 |
Property, plant and equipment |
Member |
|
|
ifrs-full:PropertyPlantAndEquipmentMember |
| 462 |
Buildings |
Member |
|
|
ifrs-full:BuildingsMember |
| 463 |
Furniture, fixtures and equipment |
Member |
|
|
ifrs-full:FixturesAndFittingsMember |
| 464 |
Computer equipment |
Member |
|
|
ifrs-full:ComputerEquipmentMember |
| 465 |
Disclosure of detailed information about property, plant and equipment [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems |
| 466 |
Estimated useful life |
Concept (xbrli:durationItemType) |
For Period |
|
gib:UsefulLivesOrDepreciationRatesPropertyPlantAndEquipmentPeriod |
| 467 |
2407404 - Disclosure - Summary of significant accounting policies - Disclosure of Estimated Useful Lives of Intangible Assets (Details) |
Network |
* |
* |
http://www.cgi.com/role/SummaryOfSignificantAccountingPoliciesDisclosureOfEstimatedUsefulLivesOfIntangibleAssetsDetails |
| 468 |
Disclosure of detailed information about intangible assets [table] |
Table |
* |
* |
ifrs-full:DisclosureOfIntangibleAssetsTable |
| 469 |
Range [axis] |
Axis |
|
|
ifrs-full:RangeAxis |
| 470 |
Ranges [member] |
Member |
|
|
ifrs-full:RangesMember |
| 471 |
Minimum |
Member |
|
|
ifrs-full:BottomOfRangeMember |
| 472 |
Maximum |
Member |
|
|
ifrs-full:TopOfRangeMember |
| 473 |
Classes of intangible assets other than goodwill [axis] |
Axis |
|
|
ifrs-full:ClassesOfIntangibleAssetsOtherThanGoodwillAxis |
| 474 |
Intangible assets other than goodwill [member] |
Member |
|
|
ifrs-full:IntangibleAssetsOtherThanGoodwillMember |
| 475 |
Internal-use software |
Member |
|
|
gib:ComputerSoftwareInternalUseMember |
| 476 |
Business solutions |
Member |
|
|
gib:ComputerSoftwareBusinessSolutionsMember |
| 477 |
Software licenses |
Member |
|
|
ifrs-full:LicencesMember |
| 478 |
Client relationships and other |
Member |
|
|
ifrs-full:CustomerrelatedIntangibleAssetsMember |
| 479 |
Disclosure of detailed information about intangible assets [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfIntangibleAssetsLineItems |
| 480 |
Estimated useful life |
Concept (xbrli:durationItemType) |
For Period |
|
gib:UsefulLivesOrAmortisationRatesIntangibleAssetsOtherThanGoodwillPeriod |
| 481 |
2410402 - Disclosure - Accounts receivable (Details) |
Network |
* |
* |
http://www.cgi.com/role/AccountsReceivableDetails |
| 482 |
Implied Table |
Table |
* |
* |
implied:Table |
| 483 |
Subclassifications of assets, liabilities and equities [abstract] |
Abstract |
|
|
ifrs-full:SubclassificationsOfAssetsLiabilitiesAndEquitiesAbstract |
| 484 |
Trade |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentTradeReceivables |
| 485 |
R&D and other tax credits |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentReceivablesFromTaxesOtherThanIncomeTax |
| 486 |
Other |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:OtherCurrentReceivables |
| 487 |
Total accounts receivable |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:TradeAndOtherCurrentReceivables |
| 488 |
2413402 - Disclosure - Funds held for clients (Details) |
Network |
* |
* |
http://www.cgi.com/role/FundsHeldForClientsDetails |
| 489 |
Disclosure Of Funds Held For Clients [Table] |
Table |
* |
* |
gib:DisclosureOfFundsHeldForClientsTable |
| 490 |
Classes of assets [axis] |
Axis |
|
|
ifrs-full:ClassesOfAssetsAxis |
| 491 |
Assets [member] |
Member |
|
|
ifrs-full:ClassesOfAssetsMember |
| 492 |
Cash |
Member |
|
|
gib:CashAndCashEquivalents1Member |
| 493 |
Long-term bonds (Note 31) |
Member |
|
|
gib:NoncurrentBondsFundsHeldForClientsMember |
| 494 |
Disclosure Of Funds Held For Clients [Line Items] |
LineItems |
|
|
gib:DisclosureOfFundsHeldForClientsLineItems |
| 495 |
Funds held for clients |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:AssetsToWhichSignificantRestrictionsApply |
| 496 |
2416402 - Disclosure - Property, plant and equipment (Details) |
Network |
* |
* |
http://www.cgi.com/role/PropertyPlantAndEquipmentDetails |
| 497 |
Disclosure of detailed information about property, plant and equipment [table] |
Table |
* |
* |
ifrs-full:DisclosureOfPropertyPlantAndEquipmentTable |
| 498 |
Classes of property, plant and equipment [axis] |
Axis |
|
|
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis |
| 499 |
Property, plant and equipment |
Member |
|
|
ifrs-full:PropertyPlantAndEquipmentMember |
| 500 |
Land and buildings |
Member |
|
|
ifrs-full:LandAndBuildingsMember |
| 501 |
Leasehold improvements |
Member |
|
|
ifrs-full:LeaseholdImprovementsMember |
| 502 |
Furniture, fixtures and equipment |
Member |
|
|
ifrs-full:FixturesAndFittingsMember |
| 503 |
Computer equipment |
Member |
|
|
ifrs-full:ComputerEquipmentMember |
| 504 |
Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] |
Axis |
|
|
ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis |
| 505 |
Net carrying amount |
Member |
|
|
ifrs-full:CarryingAmountMember |
| 506 |
Cost |
Member |
|
|
ifrs-full:GrossCarryingAmountMember |
| 507 |
Accumulated depreciation |
Member |
|
|
ifrs-full:AccumulatedDepreciationAmortisationAndImpairmentMember |
| 508 |
Disclosure of detailed information about property, plant and equipment [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems |
| 509 |
Reconciliation of changes in property, plant and equipment [abstract] |
Abstract |
|
|
ifrs-full:ReconciliationOfChangesInPropertyPlantAndEquipmentAbstract |
| 510 |
Beginning Balance |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:PropertyPlantAndEquipment |
| 511 |
Additions |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment |
| 512 |
Additions - business acquisitions |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipment |
| 513 |
Depreciation expense |
Concept (Monetary) |
For Period |
|
ifrs-full:DepreciationPropertyPlantAndEquipment |
| 514 |
Impairment |
Concept (Monetary) |
For Period |
|
ifrs-full:ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment |
| 515 |
Disposals/retirements |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment |
| 516 |
Foreign currency translation adjustment |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment |
| 517 |
Ending Balance |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:PropertyPlantAndEquipment |
| 518 |
2416403 - Disclosure - Property, plant and equipment - Assets acquired under finance leases (Details) |
Network |
* |
* |
http://www.cgi.com/role/PropertyPlantAndEquipmentAssetsAcquiredUnderFinanceLeasesDetails |
| 519 |
Disclosure of recognised finance lease as assets by lessee [table] |
Table |
* |
* |
ifrs-full:DisclosureOfRecognisedFinanceLeaseAsAssetsByLesseeTable |
| 520 |
Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] |
Axis |
|
|
ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis |
| 521 |
Net carrying amount |
Member |
|
|
ifrs-full:CarryingAmountMember |
| 522 |
Cost |
Member |
|
|
ifrs-full:GrossCarryingAmountMember |
| 523 |
Accumulated depreciation |
Member |
|
|
ifrs-full:AccumulatedDepreciationAndAmortisationMember |
| 524 |
Classes of property, plant and equipment [axis] |
Axis |
|
|
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis |
| 525 |
Property, plant and equipment |
Member |
|
|
ifrs-full:PropertyPlantAndEquipmentMember |
| 526 |
Furniture, fixtures and equipment |
Member |
|
|
ifrs-full:FixturesAndFittingsMember |
| 527 |
Computer equipment |
Member |
|
|
ifrs-full:ComputerEquipmentMember |
| 528 |
Disclosure of recognised finance lease as assets by lessee [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfRecognisedFinanceLeaseAsAssetsByLesseeLineItems |
| 529 |
Assets acquired under finance leases |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:RecognisedFinanceLeaseAsAssets |
| 530 |
2419402 - Disclosure - Contract costs (Details) |
Network |
* |
* |
http://www.cgi.com/role/ContractCostsDetails |
| 531 |
Disclosure Of Contract Costs [Table] |
Table |
* |
* |
gib:DisclosureOfContractCostsTable |
| 532 |
Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] |
Axis |
|
|
ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis |
| 533 |
Net carrying amount |
Member |
|
|
ifrs-full:CarryingAmountMember |
| 534 |
Cost |
Member |
|
|
ifrs-full:GrossCarryingAmountMember |
| 535 |
Amortization |
Member |
|
|
ifrs-full:AccumulatedDepreciationAmortisationAndImpairmentMember |
| 536 |
Disclosure Of Contract Costs [Line Items] |
LineItems |
|
|
gib:DisclosureOfContractCostsLineItems |
| 537 |
Transition costs |
Concept (Monetary) |
As Of |
Debit |
gib:NonCurrentContractAssetsTransitionCosts |
| 538 |
Incentives |
Concept (Monetary) |
As Of |
Debit |
gib:NonCurrentContractAssetsIncentives |
| 539 |
Contract assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:NoncurrentContractAssets |
| 540 |
2422402 - Disclosure - Intangible assets (Details) |
Network |
* |
* |
http://www.cgi.com/role/IntangibleAssetsDetails |
| 541 |
Disclosure of detailed information about intangible assets [table] |
Table |
* |
* |
ifrs-full:DisclosureOfIntangibleAssetsTable |
| 542 |
Classes of intangible assets other than goodwill [axis] |
Axis |
|
|
ifrs-full:ClassesOfIntangibleAssetsOtherThanGoodwillAxis |
| 543 |
Intangible assets other than goodwill [member] |
Member |
|
|
ifrs-full:IntangibleAssetsOtherThanGoodwillMember |
| 544 |
Internal-use software |
Member |
|
|
gib:ComputerSoftwareInternalUseMember |
| 545 |
Business solutions |
Member |
|
|
gib:ComputerSoftwareBusinessSolutionsMember |
| 546 |
Software licenses |
Member |
|
|
ifrs-full:LicencesMember |
| 547 |
Client relationships and other |
Member |
|
|
ifrs-full:CustomerrelatedIntangibleAssetsMember |
| 548 |
Methods of generation [axis] |
Axis |
|
|
ifrs-full:MethodsOfGenerationAxis |
| 549 |
Methods of generation [member] |
Member |
|
|
ifrs-full:MethodsOfGenerationMember |
| 550 |
Acquired |
Member |
|
|
ifrs-full:NotInternallyGeneratedMember |
| 551 |
Internally developed |
Member |
|
|
ifrs-full:InternallyGeneratedMember |
| 552 |
Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] |
Axis |
|
|
ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis |
| 553 |
Net carrying amount |
Member |
|
|
ifrs-full:CarryingAmountMember |
| 554 |
Cost |
Member |
|
|
ifrs-full:GrossCarryingAmountMember |
| 555 |
Accumulated amortization |
Member |
|
|
ifrs-full:AccumulatedDepreciationAndAmortisationMember |
| 556 |
Disclosure of detailed information about intangible assets [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfIntangibleAssetsLineItems |
| 557 |
Reconciliation of changes in intangible assets other than goodwill [abstract] |
Abstract |
|
|
ifrs-full:ReconciliationOfChangesInIntangibleAssetsOtherThanGoodwillAbstract |
| 558 |
Beginning balance |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:IntangibleAssetsOtherThanGoodwill |
| 559 |
Additions |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill |
| 560 |
Additions - business acquisitions |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AcquisitionsThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill |
| 561 |
Amortization expense |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AmortisationExpense |
| 562 |
Impairment |
Concept (Monetary) |
For Period |
|
ifrs-full:ImpairmentLossRecognisedInProfitOrLossIntangibleAssetsOtherThanGoodwill |
| 563 |
Disposals/retirements |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:DisposalsIntangibleAssetsOtherThanGoodwill |
| 564 |
Decrease through classified as held for sale, intangible assets other than goodwill |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:DecreaseThroughClassifiedAsHeldForSaleIntangibleAssetsOtherThanGoodwill |
| 565 |
Foreign currency translation adjustment |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsOtherThanGoodwill |
| 566 |
Ending balance |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:IntangibleAssetsOtherThanGoodwill |
| 567 |
2425402 - Disclosure - Other long-term assets (Details) |
Network |
* |
* |
http://www.cgi.com/role/OtherLongTermAssetsDetails |
| 568 |
Implied Table |
Table |
* |
* |
implied:Table |
| 569 |
Subclassifications of assets, liabilities and equities [abstract] |
Abstract |
|
|
ifrs-full:SubclassificationsOfAssetsLiabilitiesAndEquitiesAbstract |
| 570 |
Long-term maintenance agreements |
Concept (Monetary) |
As Of |
Debit |
gib:LongTermMaintenanceAgreements |
| 571 |
Insurance contracts held to fund defined benefit pension and life assurance arrangements - reimbursement rights (Note 16) |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:ReimbursementRightsAtFairValue |
| 572 |
Retirement benefits assets (Note 16) |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:AssetsOfBenefitPlan |
| 573 |
Deposits |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:LongtermDeposits |
| 574 |
Deferred financing fees |
Concept (Monetary) |
As Of |
Debit |
gib:DeferredFinanceCostsNet1 |
| 575 |
Other |
Concept (Monetary) |
As Of |
Debit |
gib:MiscellaneousOtherNonCurrentNonFinancialAssets |
| 576 |
Other long-term assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:OtherNoncurrentNonfinancialAssets |
| 577 |
2428402 - Disclosure - Long-term financial assets (Details) |
Network |
* |
* |
http://www.cgi.com/role/LongTermFinancialAssetsDetails |
| 578 |
Implied Table |
Table |
* |
* |
implied:Table |
| 579 |
Subclassifications of assets, liabilities and equities [abstract] |
Abstract |
|
|
ifrs-full:SubclassificationsOfAssetsLiabilitiesAndEquitiesAbstract |
| 580 |
Deferred compensation plan assets |
Concept (Monetary) |
As Of |
Debit |
gib:DeferredCompensationPlanAssets1 |
| 581 |
Long-term investments |
Concept (Monetary) |
As Of |
Debit |
gib:NoncurrentInvestments |
| 582 |
Long-term receivables |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:NoncurrentLoansAndReceivables |
| 583 |
Long-term derivative financial instruments |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:NoncurrentDerivativeFinancialAssets |
| 584 |
Long-term financial assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:NoncurrentFinancialAssets |
| 585 |
2431402 - Disclosure - Goodwill - Variations in goodwill (Details) |
Network |
* |
* |
http://www.cgi.com/role/GoodwillVariationsInGoodwillDetails |
| 586 |
Disclosure of reconciliation of changes in goodwill [table] |
Table |
* |
* |
ifrs-full:DisclosureOfReconciliationOfChangesInGoodwillTable |
| 587 |
Segments [axis] |
Axis |
|
|
ifrs-full:SegmentsAxis |
| 588 |
Segments [member] |
Member |
|
|
ifrs-full:SegmentsMember |
| 589 |
Northern Europe |
Member |
|
|
gib:NorthernEuropeGeographicalRegionMember |
| 590 |
Canada |
Member |
|
|
gib:CanadaSegmentMember |
| 591 |
France |
Member |
|
|
gib:FranceSegmentMember |
| 592 |
U.S. Commercial and State Government |
Member |
|
|
gib:U.S.CommercialAndStateGovernmentMember |
| 593 |
U.S. Federal |
Member |
|
|
gib:U.S.FederalMember |
| 594 |
U.K. |
Member |
|
|
gib:UnitedKingdomSegmentMember |
| 595 |
ECS |
Member |
|
|
gib:EasternCentralAndSouthernEuropeSegmentMember |
| 596 |
Asia Pacific |
Member |
|
|
gib:AsiaPacificSegmentMember |
| 597 |
Classes of intangible assets and goodwill [axis] |
Axis |
|
|
ifrs-full:ClassesOfIntangibleAssetsAndGoodwillAxis |
| 598 |
Intangible assets and goodwill [member] |
Member |
|
|
ifrs-full:IntangibleAssetsAndGoodwillMember |
| 599 |
Goodwill |
Member |
|
|
ifrs-full:GoodwillMember |
| 600 |
Disclosure of reconciliation of changes in goodwill [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfReconciliationOfChangesInGoodwillLineItems |
| 601 |
Reconciliation of changes in goodwill [abstract] |
Abstract |
|
|
ifrs-full:ReconciliationOfChangesInGoodwillAbstract |
| 602 |
Beginning balance |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:IntangibleAssetsAndGoodwill |
| 603 |
Business acquisitions |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AcquisitionsThroughBusinessCombinationsIntangibleAssetsAndGoodwill |
| 604 |
Goodwill reallocation |
Concept (Monetary) |
For Period |
Debit |
gib:ReallocationToCashGeneratingUnitsGoodwill |
| 605 |
Foreign currency translation adjustment |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsAndGoodwill |
| 606 |
Ending balance |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:IntangibleAssetsAndGoodwill |
| 607 |
2431403 - Disclosure - Goodwill - Key assumptions for cash-generating units (Details) |
Network |
* |
* |
http://www.cgi.com/role/GoodwillKeyAssumptionsForCashGeneratingUnitsDetails |
| 608 |
Disclosure of information for cash-generating units [table] |
Table |
* |
* |
ifrs-full:DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesTable |
| 609 |
Segments [axis] |
Axis |
|
|
ifrs-full:SegmentsAxis |
| 610 |
Segments [member] |
Member |
|
|
ifrs-full:SegmentsMember |
| 611 |
U.S |
Member |
|
|
gib:UnitedStatesOfAmericaSegmentMember |
| 612 |
Northern Europe |
Member |
|
|
gib:NorthernEuropeGeographicalRegionMember |
| 613 |
Canada |
Member |
|
|
gib:CanadaSegmentMember |
| 614 |
France |
Member |
|
|
gib:FranceSegmentMember |
| 615 |
U.S. Commercial and State Government |
Member |
|
|
gib:U.S.CommercialAndStateGovernmentMember |
| 616 |
U.S. Federal |
Member |
|
|
gib:U.S.FederalMember |
| 617 |
U.K. |
Member |
|
|
gib:UnitedKingdomSegmentMember |
| 618 |
ECS |
Member |
|
|
gib:EasternCentralAndSouthernEuropeSegmentMember |
| 619 |
Asia Pacific |
Member |
|
|
gib:AsiaPacificSegmentMember |
| 620 |
Disclosure of information for cash-generating units [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesLineItems |
| 621 |
Pre-tax WACC |
Concept (Percent) |
As Of |
|
ifrs-full:DescriptionOfDiscountRatesAppliedToCashFlowProjections |
| 622 |
Long-term growth rate of net operating cash flows |
Concept (Percent) |
As Of |
|
ifrs-full:DescriptionOfGrowthRateUsedToExtrapolateCashFlowProjections |
| 623 |
2434402 - Disclosure - Provisions (Details) |
Network |
* |
* |
http://www.cgi.com/role/ProvisionsDetails |
| 624 |
Disclosure of other provisions [table] |
Table |
* |
* |
ifrs-full:DisclosureOfOtherProvisionsTable |
| 625 |
Range [axis] |
Axis |
|
|
ifrs-full:RangeAxis |
| 626 |
Ranges [member] |
Member |
|
|
ifrs-full:RangesMember |
| 627 |
Minimum |
Member |
|
|
ifrs-full:BottomOfRangeMember |
| 628 |
Maximum |
Member |
|
|
ifrs-full:TopOfRangeMember |
| 629 |
Classes of other provisions [axis] |
Axis |
|
|
ifrs-full:ClassesOfProvisionsAxis |
| 630 |
Other provisions [member] |
Member |
|
|
ifrs-full:OtherProvisionsMember |
| 631 |
Onerous leases |
Member |
|
|
ifrs-full:OnerousContractsProvisionMember |
| 632 |
Litigation and claims |
Member |
|
|
ifrs-full:LegalProceedingsProvisionMember |
| 633 |
Tax exposure (other than those related to income tax) |
Member |
|
|
gib:LegalProceedingsProvisionTaxExposureOtherThanRelatedToIncomeTaxMember |
| 634 |
Contractual disputes |
Member |
|
|
gib:LegalProceedingsProvisionContractualDisputeMember |
| 635 |
Employee claims and other |
Member |
|
|
gib:LegalProceedingsEmployeeClaimsAndOtherMember |
| 636 |
Decommissioning liabilities |
Member |
|
|
ifrs-full:ProvisionForDecommissioningRestorationAndRehabilitationCostsMember |
| 637 |
Restructuring |
Member |
|
|
ifrs-full:RestructuringProvisionMember |
| 638 |
Disclosure of other provisions [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfOtherProvisionsLineItems |
| 639 |
Reconciliation of changes in other provisions [abstract] |
Abstract |
|
|
ifrs-full:ReconciliationOfChangesInOtherProvisionsAbstract |
| 640 |
Beginning balance |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:Provisions |
| 641 |
Additional provisions |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:AdditionalProvisionsOtherProvisions |
| 642 |
Utilized amounts |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ProvisionUsedOtherProvisions |
| 643 |
Reversals of unused amounts |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:UnusedProvisionReversedOtherProvisions |
| 644 |
Discount rate adjustment and imputed interest |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:IncreaseDecreaseThroughChangeInDiscountRateOtherProvisions |
| 645 |
Foreign currency translation adjustment |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesOtherProvisions |
| 646 |
Ending balance |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:Provisions |
| 647 |
Current portion |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentProvisions |
| 648 |
Non-current portion |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:NoncurrentProvisions |
| 649 |
Timing of cash outflows (term) |
Concept (xbrli:durationItemType) |
For Period |
|
gib:ExpectedTimingOfOutflowsProvisions |
| 650 |
Weighted average discount rate |
Concept (Percent) |
For Period |
|
gib:MajorAssumptionsMadeConcerningFutureEventsWeightedAverageDiscountRateProvisions |
| 651 |
Expected cash flows |
Concept (Monetary) |
As Of |
Credit |
gib:ExpectedOutflowsOtherProvisions |
| 652 |
2437402 - Disclosure - Long-term debt - Disclosure of Long-Term Debt (Details) |
Network |
* |
* |
http://www.cgi.com/role/LongTermDebtDisclosureOfLongTermDebtDetails |
| 653 |
Disclosure of detailed information about borrowings [table] |
Table |
* |
* |
ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable |
| 654 |
Types of interest rates [axis] |
Axis |
|
|
ifrs-full:TypesOfInterestRatesAxis |
| 655 |
Interest rate types [member] |
Member |
|
|
ifrs-full:InterestRateTypesMember |
| 656 |
Canadian prime |
Member |
|
|
gib:CanadianPrimeRateMember |
| 657 |
Banker's acceptance |
Member |
|
|
gib:BankersAcceptanceRateMember |
| 658 |
Hedging instruments [axis] |
Axis |
|
|
ifrs-full:HedgingInstrumentsAxis |
| 659 |
Hedging instruments [member] |
Member |
|
|
ifrs-full:HedgingInstrumentsMember |
| 660 |
Settled cross-currency swap agreements |
Member |
|
|
gib:CrossCurrencySwapAgreementsSettledMember |
| 661 |
Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] |
Axis |
|
|
ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis |
| 662 |
Net carrying amount |
Member |
|
|
ifrs-full:CarryingAmountMember |
| 663 |
Deferred finance costs |
Member |
|
|
gib:FinanceCostsMember |
| 664 |
Types of hedges [axis] |
Axis |
|
|
ifrs-full:TypesOfHedgesAxis |
| 665 |
Hedges [member] |
Member |
|
|
ifrs-full:TypesOfHedgesMember |
| 666 |
Fair value hedges |
Member |
|
|
ifrs-full:FairValueHedgesMember |
| 667 |
Classes of financial assets [axis] |
Axis |
|
|
ifrs-full:ClassesOfFinancialAssetsAxis |
| 668 |
Financial assets, class [member] |
Member |
|
|
ifrs-full:FinancialAssetsMember |
| 669 |
Interest rate swaps |
Member |
|
|
ifrs-full:InterestRateSwapContractMember |
| 670 |
Tranches Of Repayments Of Borrowings [Axis] |
Axis |
|
|
gib:TranchesOfRepaymentsOfBorrowingsAxis |
| 671 |
Tranches Of Repayments Of Borrowings [Domain] |
Member |
|
|
gib:TranchesOfRepaymentsOfBorrowingsDomain |
| 672 |
Tranche one |
Member |
|
|
gib:RepaymentsOfBorrowingsTrancheOneMember |
| 673 |
Tranche two |
Member |
|
|
gib:RepaymentsOfBorrowingsTrancheTwoMember |
| 674 |
Tranche three |
Member |
|
|
gib:RepaymentsOfBorrowingsTrancheThreeMember |
| 675 |
Tranche four |
Member |
|
|
gib:RepaymentsOfBorrowingsTrancheFourMember |
| 676 |
Tranche five |
Member |
|
|
gib:RepaymentsOfBorrowingsTrancheFiveMember |
| 677 |
Maturity [axis] |
Axis |
|
|
ifrs-full:MaturityAxis |
| 678 |
Aggregated time bands [member] |
Member |
|
|
ifrs-full:AggregatedTimeBandsMember |
| 679 |
2018 |
Member |
|
|
ifrs-full:NotLaterThanOneYearMember |
| 680 |
2019 |
Member |
|
|
ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember |
| 681 |
2020 |
Member |
|
|
ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember |
| 682 |
2021 |
Member |
|
|
ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember |
| 683 |
2022 |
Member |
|
|
ifrs-full:LaterThanFourYearsAndNotLaterThanFiveYearsMember |
| 684 |
2023 |
Member |
|
|
gib:LaterThanFiveYearsAndNotLaterThanSixYearsMember |
| 685 |
2024 |
Member |
|
|
gib:LaterThanSixYearsAndNotLaterThanSevenYearsMember |
| 686 |
Range [axis] |
Axis |
|
|
ifrs-full:RangeAxis |
| 687 |
Ranges [member] |
Member |
|
|
ifrs-full:RangesMember |
| 688 |
Weighted average |
Member |
|
|
ifrs-full:WeightedAverageMember |
| 689 |
Borrowings by name [axis] |
Axis |
|
|
ifrs-full:BorrowingsByNameAxis |
| 690 |
Borrowings by name [member] |
Member |
|
|
ifrs-full:BorrowingsByNameMember |
| 691 |
Senior U.S. unsecured notes |
Member |
|
|
gib:SeniorU.S.UnsecuredNotesMember |
| 692 |
Senior unsecured notes |
Member |
|
|
gib:SeniorUnsecuredNotesMember |
| 693 |
Unsecured committed revolving credit facility |
Member |
|
|
gib:UnsecuredCommittedRevolvingCreditFacilityMember |
| 694 |
Committed to cover various letters of credit issued for clients and other parties |
Member |
|
|
gib:UnsecuredCommittedRevolvingCreditFacilityLettersOfCreditMember |
| 695 |
Obligations, blended monthly installments |
Member |
|
|
gib:ObligationsBlendedMonthlyInstallmentsMaturingAtVariousDatesUntil2021Member |
| 696 |
Obligations under finance leases, blended monthly installments |
Member |
|
|
gib:FinanceLeasesBlendedMonthlyInstallmentsMaturingAtVariousDatesUntil2022Member |
| 697 |
Other long-term debt |
Member |
|
|
gib:OtherLongTermBorrowingsMember |
| 698 |
Disclosure of detailed information about borrowings [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems |
| 699 |
Borrowings |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:Borrowings |
| 700 |
Current portion |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentPortionOfLongtermBorrowings |
| 701 |
Long-term debt |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:LongtermBorrowings |
| 702 |
Number of remaining yearly payments |
Concept (Integer) |
For Period |
|
gib:NumberOfRemainingAnnualRepaymentsOnBorrowings |
| 703 |
Weighted average interest rate |
Concept (Percent) |
As Of |
|
ifrs-full:BorrowingsInterestRate |
| 704 |
Proceeds from borrowings |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ProceedsFromBorrowingsClassifiedAsFinancingActivities |
| 705 |
Fair value adjustments relating to interest rate swaps designated as fair value hedges |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:GainsLossesOnChangeInFairValueOfDerivatives |
| 706 |
Repayment of borrowings |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:RepaymentsOfBorrowingsClassifiedAsFinancingActivities |
| 707 |
Number of tranches |
Concept (Integer) |
For Period |
|
gib:NumberOfTranchesOfRepaymentsOfBorrowings |
| 708 |
Borrowings maturity term |
Concept (xbrli:durationItemType) |
For Period |
|
gib:BorrowingsMaturityTerm |
| 709 |
Borrowing capacity of unsecured credit facility |
Concept (Monetary) |
As Of |
Credit |
gib:LineOfCreditFacilityMaximumBorrowingCapacity1 |
| 710 |
Number of yearly payments |
Concept (Integer) |
For Period |
|
gib:NumberOfAnnualRepaymentsOnBorrowings |
| 711 |
Borrowing margin rate |
Concept (Percent) |
As Of |
|
ifrs-full:BorrowingsAdjustmentToInterestRateBasis |
| 712 |
Extended period |
Concept (xbrli:durationItemType) |
For Period |
|
gib:BorrowingsTermOfExtension |
| 713 |
2437403 - Disclosure - Long-term debt - Disclosure of Principle Repayments on Long-Term Debt (Details) |
Network |
* |
* |
http://www.cgi.com/role/LongTermDebtDisclosureOfPrincipleRepaymentsOnLongTermDebtDetails |
| 714 |
Disclosure of detailed information about borrowings [table] |
Table |
* |
* |
ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable |
| 715 |
Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] |
Axis |
|
|
ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis |
| 716 |
Net carrying amount |
Member |
|
|
ifrs-full:CarryingAmountMember |
| 717 |
Gross carrying amount |
Member |
|
|
ifrs-full:GrossCarryingAmountMember |
| 718 |
Maturity [axis] |
Axis |
|
|
ifrs-full:MaturityAxis |
| 719 |
Aggregated time bands [member] |
Member |
|
|
ifrs-full:AggregatedTimeBandsMember |
| 720 |
Less than one year |
Member |
|
|
ifrs-full:NotLaterThanOneYearMember |
| 721 |
Between one and two years |
Member |
|
|
ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember |
| 722 |
Between two and five years |
Member |
|
|
ifrs-full:LaterThanTwoYearsAndNotLaterThanFiveYearsMember |
| 723 |
Beyond five years |
Member |
|
|
ifrs-full:LaterThanFiveYearsMember |
| 724 |
Disclosure of detailed information about borrowings [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems |
| 725 |
Borrowings |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:Borrowings |
| 726 |
2437404 - Disclosure - Long-term debt - Disclosure of Minimum Finance Lease Payments (Details) |
Network |
* |
* |
http://www.cgi.com/role/LongTermDebtDisclosureOfMinimumFinanceLeasePaymentsDetails |
| 727 |
Disclosure of finance lease and operating lease by lessee [table] |
Table |
* |
* |
ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeTable |
| 728 |
Maturity [axis] |
Axis |
|
|
ifrs-full:MaturityAxis |
| 729 |
Aggregated time bands [member] |
Member |
|
|
ifrs-full:AggregatedTimeBandsMember |
| 730 |
Less than one year |
Member |
|
|
ifrs-full:NotLaterThanOneYearMember |
| 731 |
Between one and two years |
Member |
|
|
ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember |
| 732 |
Between two and five years |
Member |
|
|
ifrs-full:LaterThanTwoYearsAndNotLaterThanFiveYearsMember |
| 733 |
Disclosure of finance lease and operating lease by lessee [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeLineItems |
| 734 |
Principal |
Concept (Monetary) |
As Of |
Credit |
gib:MinimumFinanceLeasePaymentsPayablePrincipalComponent |
| 735 |
Interest |
Concept (Monetary) |
As Of |
Credit |
gib:MinimumFinanceLeasePaymentsPayableInterestComponent |
| 736 |
Payment |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:MinimumFinanceLeasePaymentsPayable |
| 737 |
2440402 - Disclosure - Other long-term liabilities (Details) |
Network |
* |
* |
http://www.cgi.com/role/OtherLongTermLiabilitiesDetails |
| 738 |
Implied Table |
Table |
* |
* |
implied:Table |
| 739 |
Subclassifications of assets, liabilities and equities [abstract] |
Abstract |
|
|
ifrs-full:SubclassificationsOfAssetsLiabilitiesAndEquitiesAbstract |
| 740 |
Deferred revenue |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:DeferredIncome |
| 741 |
Deferred compensation plan liabilities |
Concept (Monetary) |
As Of |
Credit |
gib:DeferredCompensationPlanLiabilities |
| 742 |
Deferred rent |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:RentDeferredIncomeClassifiedAsNoncurrent |
| 743 |
Other |
Concept (Monetary) |
As Of |
Credit |
gib:MiscellaneousOtherNonCurrentLiabilities |
| 744 |
Other long-term liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:OtherNoncurrentLiabilities |
| 745 |
2443402 - Disclosure - Income taxes - Disclosure of Income Tax Expense (Details) |
Network |
* |
* |
http://www.cgi.com/role/IncomeTaxesDisclosureOfIncomeTaxExpenseDetails |
| 746 |
Implied Table |
Table |
* |
* |
implied:Table |
| 747 |
Income Taxes [Abstract] |
Abstract |
|
|
gib:IncomeTaxesAbstract |
| 748 |
Current income tax expense |
Abstract |
|
|
ifrs-full:CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriodsAbstract |
| 749 |
Current income tax expense in respect of the current year |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:CurrentTaxExpenseIncome |
| 750 |
Current income tax expense relating to changes in tax laws |
Concept (Monetary) |
For Period |
Debit |
gib:IncomeTaxExpenseIncomeAdjustmentsForRepatriationOfForeignEarnings |
| 751 |
Adjustments recognized in the current year in relation to the income tax expense of prior years |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdjustmentsForCurrentTaxOfPriorPeriod |
| 752 |
Total current income tax expense |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriods |
| 753 |
Deferred income tax expense |
Abstract |
|
|
ifrs-full:DeferredTaxExpenseIncomeAbstract |
| 754 |
Deferred income tax expense relating to the origination and reversal of temporary differences |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:DeferredTaxExpenseIncomeRelatingToOriginationAndReversalOfTemporaryDifferences |
| 755 |
Deferred income tax expense relating to changes in tax rates |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:DeferredTaxExpenseIncomeRelatingToTaxRateChangesOrImpositionOfNewTaxes |
| 756 |
Adjustments recognized in the current year in relation to the deferred income tax expense of prior years |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdjustmentsForDeferredTaxOfPriorPeriods |
| 757 |
Recognition of previously unrecognized temporary differences |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:TaxBenefitArisingFromPreviouslyUnrecognisedTaxLossTaxCreditOrTemporaryDifferenceOfPriorPeriodUsedToReduceDeferredTaxExpense |
| 758 |
Total deferred income tax expense |
Concept (Monetary) |
For Period |
Debit |
gib:DeferredTaxExpenseIncomeAndAdjustmentsForDeferredTaxOfPriorPeriods |
| 759 |
Total income tax expense |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:IncomeTaxExpenseContinuingOperations |
| 760 |
2443403 - Disclosure - Income taxes - Reconciliation of Effective Income Tax Rate from the Combined Federal and Provincial Canadian Statutory Tax Rate (Details) |
Network |
* |
* |
http://www.cgi.com/role/IncomeTaxesReconciliationOfEffectiveIncomeTaxRateFromCombinedFederalAndProvincialCanadianStatutoryTaxRateDetails |
| 761 |
Implied Table |
Table |
* |
* |
implied:Table |
| 762 |
Income Taxes [Abstract] |
Abstract |
|
|
gib:IncomeTaxesAbstract |
| 763 |
Company's statutory tax rate |
Concept (Percent) |
For Period |
|
ifrs-full:ApplicableTaxRate |
| 764 |
Effect of foreign tax rate differences |
Concept (Percent) |
For Period |
|
ifrs-full:TaxRateEffectOfForeignTaxRates |
| 765 |
Final determination from agreements with tax authorities and expirations of statutes of limitations |
Concept (Percent) |
For Period |
|
gib:TaxRateEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLossRegulatorySettlements |
| 766 |
Non-deductible and tax exempt items |
Concept (Percent) |
For Period |
|
gib:TaxRateEffectOfExpenseNotDeductibleInDeterminingTaxableProfitLossAndRevenuesExemptFromTaxation |
| 767 |
Recognition of previously unrecognized temporary differences |
Concept (Percent) |
For Period |
|
gib:TaxRateEffectOfPreviouslyUnrecognizedTaxLossTaxCreditOrTemporaryDifferenceOfPriorPeriodUsedToReduceDeferredTaxExpense |
| 768 |
Minimum income tax charge |
Concept (Percent) |
For Period |
|
gib:TaxRateEffectOfMinimumTaxCharge |
| 769 |
Changes in tax laws and rates |
Concept (Percent) |
For Period |
|
ifrs-full:TaxRateEffectFromChangeInTaxRate |
| 770 |
Effective income tax rate |
Concept (Percent) |
For Period |
|
ifrs-full:AverageEffectiveTaxRate |
| 771 |
2443404 - Disclosure - Income taxes - Disclosure of the Continuity of Deferred Tax Balances (Details) |
Network |
* |
* |
http://www.cgi.com/role/IncomeTaxesDisclosureOfContinuityOfDeferredTaxBalancesDetails |
| 772 |
Disclosure of temporary difference, unused tax losses and unused tax credits [table] |
Table |
* |
* |
ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable |
| 773 |
Temporary difference, unused tax losses and unused tax credits [axis] |
Axis |
|
|
ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis |
| 774 |
Temporary difference, unused tax losses and unused tax credits [member] |
Member |
|
|
ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember |
| 775 |
Accounts payable, accrued liabilities and other long-term liabilities |
Member |
|
|
gib:AccountsPayableAccruedLiabilitiesAndOtherLongTermLiabilitiesRelatedTemporaryDifferenceMember |
| 776 |
Tax benefits on losses carried forward |
Member |
|
|
gib:TaxBenefitsOnLossesCarriedForwardRelatedTemporaryDifferenceMember |
| 777 |
Accrued compensation |
Member |
|
|
gib:AccruedCompensationRelatedTemporaryDifferenceMember |
| 778 |
Retirement benefits obligations |
Member |
|
|
gib:RetirementBenefitsObligationsRelatedTemporaryDifferenceMember |
| 779 |
Allowance for doubtful accounts |
Member |
|
|
ifrs-full:AllowanceForCreditLossesMember |
| 780 |
PP&E, contract costs, intangible assets and other long-term assets |
Member |
|
|
gib:PropertyPlantAndEquipmentContractCostsIntangibleAssetsAndOtherLongTermAssetsRelatedTemporaryDifferenceMember |
| 781 |
Work in progress |
Member |
|
|
gib:WorkInProgressRelatedTemporaryDifferenceMember |
| 782 |
Goodwill |
Member |
|
|
gib:GoodwillRelatedTemporaryDifferenceMember |
| 783 |
Refundable tax credits on salaries |
Member |
|
|
gib:RefundableTaxCreditsOnSalariesRelatedTemporaryDifferenceMember |
| 784 |
Cash flow hedges |
Member |
|
|
gib:CashFlowHedgesRelatedTemporaryDifferenceMember |
| 785 |
Other |
Member |
|
|
ifrs-full:OtherTemporaryDifferencesMember |
| 786 |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems |
| 787 |
Reconciliation of changes in deferred tax liability (asset) [abstract] |
Abstract |
|
|
ifrs-full:ReconciliationOfChangesInDeferredTaxLiabilityAssetAbstract |
| 788 |
Beginning balance |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:DeferredTaxLiabilityAsset |
| 789 |
Additions from business acquisitions |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:IncreaseDecreaseThroughBusinessCombinationsDeferredTaxLiabilityAsset |
| 790 |
Recognized in earnings |
Concept (Monetary) |
For Period |
|
ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss |
| 791 |
Recognized in other comprehensive income |
Concept (Monetary) |
For Period |
|
ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome |
| 792 |
Recognized in equity |
Concept (Monetary) |
For Period |
|
ifrs-full:DeferredTaxRelatingToItemsChargedOrCreditedDirectlyToEquity |
| 793 |
Foreign currency translation adjustment and other |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesDeferredTaxLiabilityAsset |
| 794 |
Ending balance |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:DeferredTaxLiabilityAsset |
| 795 |
2443405 - Disclosure - Income taxes - Disclosure of Deferred Tax Balances (Details) |
Network |
* |
* |
http://www.cgi.com/role/IncomeTaxesDisclosureOfDeferredTaxBalancesDetails |
| 796 |
Implied Table |
Table |
* |
* |
implied:Table |
| 797 |
Income Taxes [Abstract] |
Abstract |
|
|
gib:IncomeTaxesAbstract |
| 798 |
Deferred tax assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:DeferredTaxAssets |
| 799 |
Deferred tax liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:DeferredTaxLiabilities |
| 800 |
Deferred tax assets (liabilities) |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:DeferredTaxLiabilityAsset |
| 801 |
2443406 - Disclosure - Income taxes - Narrative (Details) |
Network |
* |
* |
http://www.cgi.com/role/IncomeTaxesNarrativeDetails |
| 802 |
Disclosure of temporary difference, unused tax losses and unused tax credits [table] |
Table |
* |
* |
ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable |
| 803 |
Geographical areas [axis] |
Axis |
|
|
ifrs-full:GeographicalAreasAxis |
| 804 |
Geographical areas [member] |
Member |
|
|
ifrs-full:GeographicalAreasMember |
| 805 |
Foreign countries |
Member |
|
|
ifrs-full:ForeignCountriesMember |
| 806 |
Subsidiaries [axis] |
Axis |
|
|
ifrs-full:SignificantInvestmentsInSubsidiariesAxis |
| 807 |
Entity's total for subsidiaries [member] |
Member |
|
|
ifrs-full:EntitysTotalForSubsidiariesMember |
| 808 |
Subsidiaries |
Member |
|
|
ifrs-full:SubsidiariesMember |
| 809 |
Tax Year [axis] |
Axis |
|
|
gib:TaxYearAxis |
| 810 |
Tax Year [Domain] |
Member |
|
|
gib:TaxYearDomain |
| 811 |
Expiring at various dates up to 2038 |
Member |
|
|
gib:ExpiringAtVariousDatesUpTo2038Member |
| 812 |
No expiry dates |
Member |
|
|
gib:NoExpiryDateMember |
| 813 |
Temporary difference, unused tax losses and unused tax credits [axis] |
Axis |
|
|
ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis |
| 814 |
Temporary difference, unused tax losses and unused tax credits [member] |
Member |
|
|
ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember |
| 815 |
Operating tax losses carried forward |
Member |
|
|
gib:UnusedOperatingTaxLossesMember |
| 816 |
Non-operating tax losses carried forward |
Member |
|
|
gib:UnusedNonOperatingTaxLossesMember |
| 817 |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems |
| 818 |
Adjustment for income tax recovery |
Concept (Monetary) |
For Period |
Credit |
gib:AdjustmentsForIncomeTaxRecovery |
| 819 |
Adjustment for re-valuation of deferred tax assets and liabilities |
Concept (Monetary) |
For Period |
Debit |
gib:IncomeTaxExpenseBenefitAdjustmentsForRevaluationOfDeferredTaxAssetsAndLiabilities |
| 820 |
Current income tax expense relating to changes in tax laws |
Concept (Monetary) |
For Period |
Debit |
gib:IncomeTaxExpenseIncomeAdjustmentsForRepatriationOfForeignEarnings |
| 821 |
Tax losses carried forward |
Concept (Monetary) |
As Of |
|
ifrs-full:DeductibleTemporaryDifferencesForWhichNoDeferredTaxAssetIsRecognised |
| 822 |
Deferred tax asset |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:DeferredTaxAssets |
| 823 |
Valuation allowance |
Concept (Monetary) |
As Of |
Credit |
gib:DeferredTaxAssetsValuationAllowance1 |
| 824 |
Net deferred tax asset |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:NetDeferredTaxAssets |
| 825 |
Unrecognized losses |
Concept (Monetary) |
As Of |
|
ifrs-full:UnusedTaxLossesForWhichNoDeferredTaxAssetRecognised |
| 826 |
Cash and cash equivalents |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CashAndCashEquivalents |
| 827 |
Undistributed earnings from foreign subsidiaries for which deferred tax liabilities have not been recorded |
Concept (Monetary) |
As Of |
|
ifrs-full:TemporaryDifferencesAssociatedWithInvestmentsInSubsidiariesBranchesAndAssociatesAndInterestsInJointVentures |
| 828 |
2446402 - Disclosure - Employee benefits - Narrative (Details) |
Network |
* |
* |
http://www.cgi.com/role/EmployeeBenefitsNarrativeDetails |
| 829 |
Disclosure of defined benefit plans [table] |
Table |
* |
* |
ifrs-full:DisclosureOfDefinedBenefitPlansTable |
| 830 |
Defined benefit plans [axis] |
Axis |
|
|
ifrs-full:DefinedBenefitPlansAxis |
| 831 |
Defined benefit plans [member] |
Member |
|
|
ifrs-full:DefinedBenefitPlansMember |
| 832 |
CMG U.K. Pension Scheme |
Member |
|
|
gib:CMGUKPensionSchemeMember |
| 833 |
Logica U.K. Pension & Life Assurance Scheme |
Member |
|
|
gib:LogicaUKPensionAndLifeAssuranceSchemeMember |
| 834 |
Logica Defined Benefit Pension Plan |
Member |
|
|
gib:LogicaDefinedBenefitPensionPlanMember |
| 835 |
Alecta multi-employer plan |
Member |
|
|
ifrs-full:MultiemployerDefinedBenefitPlansMember |
| 836 |
Geographical areas [axis] |
Axis |
|
|
ifrs-full:GeographicalAreasAxis |
| 837 |
Geographical areas [member] |
Member |
|
|
ifrs-full:GeographicalAreasMember |
| 838 |
U.K. |
Member |
|
|
country:GB |
| 839 |
Other |
Member |
|
|
gib:OtherCountriesMember |
| 840 |
U.S. Commercial and State Government |
Member |
|
|
country:US |
| 841 |
Range [axis] |
Axis |
|
|
ifrs-full:RangeAxis |
| 842 |
Ranges [member] |
Member |
|
|
ifrs-full:RangesMember |
| 843 |
Minimum |
Member |
|
|
ifrs-full:BottomOfRangeMember |
| 844 |
Maximum |
Member |
|
|
ifrs-full:TopOfRangeMember |
| 845 |
Disclosure of defined benefit plans [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfDefinedBenefitPlansLineItems |
| 846 |
Number of defined benefit pension plans |
Concept (Integer) |
For Period |
|
gib:NumberOfDefinedBenefitPlans |
| 847 |
Equity investments, target allocation percentage of plan assets |
Concept (Percent) |
As Of |
|
gib:EquityInstrumentsAmountContributedToFairValueOfPlanAssetsTargetAllocationPercentage |
| 848 |
Bond investments, target allocation percentage of plan assets |
Concept (Percent) |
As Of |
|
gib:DebtInstrumentsAmountContributedToFairValueOfPlanAssetsTargetAllocationPercentage |
| 849 |
Quarterly payments to cover deficit |
Concept (Monetary) |
For Period |
Credit |
gib:EstimateOfContributionsToCoverDeficitExpectedToBePaidQuarterlyToPlanForNextAnnualReportingPeriod |
| 850 |
Monthly payments to cover deficit |
Concept (Monetary) |
For Period |
Credit |
gib:EstimateOfContributionsToCoverDeficitExpectedToBePaidMonthlyToPlanForNextAnnualReportingPeriod |
| 851 |
Administration expenses, quarterly |
Concept (Monetary) |
For Period |
Credit |
gib:AdministrativeExpensesNetDefinedBenefitLiabilityAssetQuarterlyPayment |
| 852 |
Administration expenses, monthly |
Concept (Monetary) |
For Period |
Credit |
gib:AdministrativeExpensesNetDefinedBenefitLiabilityAssetMonthlyPayment |
| 853 |
Annual contributions |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:EstimateOfContributionsExpectedToBePaidToPlan |
| 854 |
Pension cost for defined contribution plans |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:PostemploymentBenefitExpenseDefinedContributionPlans |
| 855 |
Proportion of total contributions to the plan |
Concept (Percent) |
As Of |
|
gib:LevelOfParticipationOfEntityComparedWithOtherParticipatingEntitiesProportionOfTotalContributions |
| 856 |
Proportion of total number of active members in the plan |
Concept (Percent) |
As Of |
|
gib:LevelOfParticipationOfEntityComparedWithOtherParticipatingEntitiesProportionOfActiveMembers |
| 857 |
Collective funding solvency allowed |
Concept (Percent) |
As Of |
|
gib:FundingArrangementsCollectiveSolvencyPercentageAllowed |
| 858 |
Collective funding solvency percentage |
Concept (Percent) |
As Of |
|
gib:FundingArrangementsCollectiveSolvencyPercentage |
| 859 |
Deferred compensation plan liabilities |
Concept (Monetary) |
As Of |
Credit |
gib:DeferredCompensationPlanLiabilities |
| 860 |
Deferred compensation plan assets |
Concept (Monetary) |
As Of |
Debit |
gib:DeferredCompensationPlanAssets1 |
| 861 |
2446403 - Disclosure - Employee benefits - Amounts for Benefit Plans Included in Balance Sheet (Details) |
Network |
* |
* |
http://www.cgi.com/role/EmployeeBenefitsAmountsForBenefitPlansIncludedInBalanceSheetDetails |
| 862 |
Disclosure of defined benefit plans [table] |
Table |
* |
* |
ifrs-full:DisclosureOfDefinedBenefitPlansTable |
| 863 |
Geographical areas [axis] |
Axis |
|
|
ifrs-full:GeographicalAreasAxis |
| 864 |
Geographical areas [member] |
Member |
|
|
ifrs-full:GeographicalAreasMember |
| 865 |
U.K. |
Member |
|
|
country:GB |
| 866 |
Germany |
Member |
|
|
country:DE |
| 867 |
France |
Member |
|
|
country:FR |
| 868 |
Other |
Member |
|
|
gib:OtherCountriesMember |
| 869 |
Disclosure of defined benefit plans [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfDefinedBenefitPlansLineItems |
| 870 |
Defined benefit obligations |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:DefinedBenefitObligationAtPresentValue |
| 871 |
Fair value of plan assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:PlanAssetsAtFairValue |
| 872 |
Surplus (deficit) in plan |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:SurplusDeficitInPlan |
| 873 |
Fair value of reimbursement rights |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:ReimbursementRightsAtFairValue |
| 874 |
Net asset (liability) recognized in the balance sheet |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:LiabilityAssetOfDefinedBenefitPlans |
| 875 |
Retirement benefits assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:AssetsOfBenefitPlan |
| 876 |
Retirement benefits obligations |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:NoncurrentRecognisedLiabilitiesDefinedBenefitPlan |
| 877 |
2446404 - Disclosure - Employee benefits - Defined Benefit Obligations (Details) |
Network |
* |
* |
http://www.cgi.com/role/EmployeeBenefitsDefinedBenefitObligationsDetails |
| 878 |
Disclosure of net defined benefit liability (asset) [table] |
Table |
* |
* |
ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetTable |
| 879 |
Net defined benefit liability (asset) [axis] |
Axis |
|
|
ifrs-full:NetDefinedBenefitLiabilityAssetAxis |
| 880 |
Net defined benefit liability (asset) [member] |
Member |
|
|
ifrs-full:NetDefinedBenefitLiabilityAssetMember |
| 881 |
Defined benefit obligations |
Member |
|
|
ifrs-full:PresentValueOfDefinedBenefitObligationMember |
| 882 |
Geographical areas [axis] |
Axis |
|
|
ifrs-full:GeographicalAreasAxis |
| 883 |
Geographical areas [member] |
Member |
|
|
ifrs-full:GeographicalAreasMember |
| 884 |
U.K. |
Member |
|
|
country:GB |
| 885 |
Germany |
Member |
|
|
country:DE |
| 886 |
France |
Member |
|
|
country:FR |
| 887 |
Other |
Member |
|
|
gib:OtherCountriesMember |
| 888 |
Funding Arrangements Of Defined Benefit Plans [Axis] |
Axis |
|
|
gib:FundingArrangementsOfDefinedBenefitPlansAxis |
| 889 |
Funding Arrangements Of Defined Benefit Plans [Domain] |
Member |
|
|
gib:FundingArrangementsOfDefinedBenefitPlansDomain |
| 890 |
Unfunded Plans |
Member |
|
|
gib:WhollyUnfundedDefinedBenefitPlansMember |
| 891 |
Funded Plans |
Member |
|
|
gib:WhollyOrPartlyFundedDefinedBenefitPlansMember |
| 892 |
Disclosure of net defined benefit liability (asset) [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetLineItems |
| 893 |
Defined benefit liability (asset), beginning balance |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:LiabilityAssetOfDefinedBenefitPlans |
| 894 |
Obligations extinguished on settlements |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:PaymentsInRespectOfSettlementsNetDefinedBenefitLiabilityAsset |
| 895 |
Current service cost |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:CurrentServiceCostNetDefinedBenefitLiabilityAsset |
| 896 |
Interest cost |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:InterestExpenseIncomeNetDefinedBenefitLiabilityAsset |
| 897 |
Past service cost |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:PastServiceCostNetDefinedBenefitLiabilityAsset |
| 898 |
Actuarial gains due to change in financial assumptions |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsNetDefinedBenefitLiabilityAsset |
| 899 |
Actuarial gains due to change in demographic assumptions |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ActuarialGainsLossesArisingFromChangesInDemographicAssumptionsNetDefinedBenefitLiabilityAsset |
| 900 |
Actuarial losses (gains) due to experience |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ActuarialGainsLossesArisingFromExperienceAdjustmentsNetDefinedBenefitLiabilityAsset |
| 901 |
Plan participant contributions |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ContributionsToPlanByPlanParticipantsNetDefinedBenefitLiabilityAsset |
| 902 |
Benefits paid from the plan |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:PaymentsFromPlanNetDefinedBenefitLiabilityAsset |
| 903 |
Benefits paid directly by employer |
Concept (Monetary) |
For Period |
Debit |
gib:PaymentsFromEmployerNetDefinedBenefitLiabilityAsset |
| 904 |
Foreign currency translation adjustment |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:IncreaseDecreaseThroughChangesInForeignExchangeRatesNetDefinedBenefitLiabilityAsset |
| 905 |
Defined benefit liability (asset), ending balance |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:LiabilityAssetOfDefinedBenefitPlans |
| 906 |
2446405 - Disclosure - Employee benefits - Plan Assets and Reimbursement Rights (Details) |
Network |
* |
* |
http://www.cgi.com/role/EmployeeBenefitsPlanAssetsAndReimbursementRightsDetails |
| 907 |
Disclosure of net defined benefit liability (asset) [table] |
Table |
* |
* |
ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetTable |
| 908 |
Geographical areas [axis] |
Axis |
|
|
ifrs-full:GeographicalAreasAxis |
| 909 |
Geographical areas [member] |
Member |
|
|
ifrs-full:GeographicalAreasMember |
| 910 |
U.K. |
Member |
|
|
country:GB |
| 911 |
Germany |
Member |
|
|
country:DE |
| 912 |
France |
Member |
|
|
country:FR |
| 913 |
Other |
Member |
|
|
gib:OtherCountriesMember |
| 914 |
Net defined benefit liability (asset) [axis] |
Axis |
|
|
ifrs-full:NetDefinedBenefitLiabilityAssetAxis |
| 915 |
Net defined benefit liability (asset) [member] |
Member |
|
|
ifrs-full:NetDefinedBenefitLiabilityAssetMember |
| 916 |
Plan assets and reimbursement rights |
Member |
|
|
ifrs-full:PlanAssetsMember |
| 917 |
Disclosure of net defined benefit liability (asset) [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetLineItems |
| 918 |
Defined benefit liability (asset), beginning balance |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:LiabilityAssetOfDefinedBenefitPlans |
| 919 |
Assets distributed on settlements |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:PaymentsInRespectOfSettlementsNetDefinedBenefitLiabilityAsset |
| 920 |
Interest income on plan assets |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:InterestExpenseIncomeNetDefinedBenefitLiabilityAsset |
| 921 |
Employer contributions |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ContributionsToPlanByEmployerNetDefinedBenefitLiabilityAsset |
| 922 |
Return on assets excluding interest income |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ReturnOnPlanAssetsNetDefinedBenefitLiabilityAsset |
| 923 |
Plan participants contributions |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ContributionsToPlanByPlanParticipantsNetDefinedBenefitLiabilityAsset |
| 924 |
Benefits paid from the plan |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:PaymentsFromPlanNetDefinedBenefitLiabilityAsset |
| 925 |
Benefits paid directly by employer |
Concept (Monetary) |
For Period |
Debit |
gib:PaymentsFromEmployerNetDefinedBenefitLiabilityAsset |
| 926 |
Administration expenses paid from the plan |
Concept (Monetary) |
For Period |
Credit |
gib:AdministrativeExpensesNetDefinedBenefitLiabilityAsset |
| 927 |
Foreign currency translation adjustment |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:IncreaseDecreaseThroughChangesInForeignExchangeRatesNetDefinedBenefitLiabilityAsset |
| 928 |
Defined benefit liability (asset), ending balance |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:LiabilityAssetOfDefinedBenefitPlans |
| 929 |
Plan assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:PlanAssetsAtFairValue |
| 930 |
Reimbursement rights |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:ReimbursementRightsAtFairValue |
| 931 |
2446406 - Disclosure - Employee benefits - Fair Value of Plan Assets (Details) |
Network |
* |
* |
http://www.cgi.com/role/EmployeeBenefitsFairValueOfPlanAssetsDetails |
| 932 |
Disclosure of fair value of plan assets [table] |
Table |
* |
* |
ifrs-full:DisclosureOfFairValueOfPlanAssetsTable |
| 933 |
Geographical areas [axis] |
Axis |
|
|
ifrs-full:GeographicalAreasAxis |
| 934 |
Geographical areas [member] |
Member |
|
|
ifrs-full:GeographicalAreasMember |
| 935 |
U.K. |
Member |
|
|
country:GB |
| 936 |
Germany |
Member |
|
|
country:DE |
| 937 |
France |
Member |
|
|
country:FR |
| 938 |
Other |
Member |
|
|
gib:OtherCountriesMember |
| 939 |
Defined benefit plans [axis] |
Axis |
|
|
ifrs-full:DefinedBenefitPlansAxis |
| 940 |
Defined benefit plans [member] |
Member |
|
|
ifrs-full:DefinedBenefitPlansMember |
| 941 |
Foreign defined benefit plans |
Member |
|
|
ifrs-full:ForeignDefinedBenefitPlansMember |
| 942 |
Disclosure of fair value of plan assets [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfFairValueOfPlanAssetsLineItems |
| 943 |
Quoted equities |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:EquityInstrumentsAmountContributedToFairValueOfPlanAssets |
| 944 |
Quoted bonds |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:DebtInstrumentsAmountContributedToFairValueOfPlanAssets |
| 945 |
Property |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:PropertyAmountContributedToFairValueOfPlanAssets |
| 946 |
Cash |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CashAndCashEquivalentsAmountContributedToFairValueOfPlanAssets |
| 947 |
Other |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:OtherAssetsAmountContributedToFairValueOfPlanAssets |
| 948 |
Plan assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:PlanAssetsAtFairValue |
| 949 |
2446407 - Disclosure - Employee benefits - Employee Benefit Expenses (Details) |
Network |
* |
* |
http://www.cgi.com/role/EmployeeBenefitsEmployeeBenefitExpensesDetails |
| 950 |
Disclosure of defined benefit plans [table] |
Table |
* |
* |
ifrs-full:DisclosureOfDefinedBenefitPlansTable |
| 951 |
Income Statement Location 1 [Axis] |
Axis |
|
|
gib:IncomeStatementLocation1Axis |
| 952 |
Income Statement Location 1 [Domain] |
Member |
|
|
gib:IncomeStatementLocation1Domain |
| 953 |
Costs of services, selling and administrative |
Member |
|
|
gib:CostsOfServicesAndSellingAndAdministrativeMember |
| 954 |
Disclosure of defined benefit plans [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfDefinedBenefitPlansLineItems |
| 955 |
Current service cost |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:CurrentServiceCostNetDefinedBenefitLiabilityAsset |
| 956 |
Settlement gain |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:GainsLossesArisingFromSettlementsNetDefinedBenefitLiabilityAsset |
| 957 |
Past service cost |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:PastServiceCostNetDefinedBenefitLiabilityAsset |
| 958 |
Net interest on net defined benefit obligations or assets |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:InterestExpenseIncomeNetDefinedBenefitLiabilityAsset |
| 959 |
Administration expenses |
Concept (Monetary) |
For Period |
Credit |
gib:AdministrativeExpensesNetDefinedBenefitLiabilityAsset |
| 960 |
Defined benefit plan expenses |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:PostemploymentBenefitExpenseDefinedBenefitPlans |
| 961 |
Net finance costs |
Concept (Monetary) |
For Period |
Debit |
gib:NetInterestAndAdministrativeExpenseIncomeNetDefinedBenefitObligation |
| 962 |
2446408 - Disclosure - Employee benefits - Actuarial Assumptions (Details) |
Network |
* |
* |
http://www.cgi.com/role/EmployeeBenefitsActuarialAssumptionsDetails |
| 963 |
Disclosure of defined benefit plans [table] |
Table |
* |
* |
ifrs-full:DisclosureOfDefinedBenefitPlansTable |
| 964 |
Geographical areas [axis] |
Axis |
|
|
ifrs-full:GeographicalAreasAxis |
| 965 |
Geographical areas [member] |
Member |
|
|
ifrs-full:GeographicalAreasMember |
| 966 |
U.K. |
Member |
|
|
country:GB |
| 967 |
Germany |
Member |
|
|
country:DE |
| 968 |
France |
Member |
|
|
country:FR |
| 969 |
Other |
Member |
|
|
gib:OtherCountriesMember |
| 970 |
Disclosure of defined benefit plans [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfDefinedBenefitPlansLineItems |
| 971 |
Discount rate |
Concept (Percent) |
As Of |
|
ifrs-full:ActuarialAssumptionOfDiscountRates |
| 972 |
Future salary increases |
Concept (Percent) |
As Of |
|
ifrs-full:ActuarialAssumptionOfExpectedRatesOfSalaryIncreases |
| 973 |
Future pension increases |
Concept (Percent) |
As Of |
|
ifrs-full:ActuarialAssumptionOfExpectedRatesOfPensionIncreases |
| 974 |
Inflation rate |
Concept (Percent) |
As Of |
|
ifrs-full:ActuarialAssumptionOfExpectedRatesOfInflation |
| 975 |
Longevity at age 65 for current members, Males |
Concept (Decimal) |
As Of |
|
gib:ActuarialAssumptionOfLifeExpectancyAtAge65Male |
| 976 |
Longevity at age 65 for current members, Females |
Concept (Decimal) |
As Of |
|
gib:ActuarialAssumptionOfLifeExpectancyAtAge65Female |
| 977 |
Longevity at age 45 for current members, Males |
Concept (Decimal) |
As Of |
|
gib:ActuarialAssumptionOfLifeExpectancyAtAge45Male |
| 978 |
Longevity at age 45 for current members, Females |
Concept (Decimal) |
As Of |
|
gib:ActuarialAssumptionOfLifeExpectancyAtAge45Female |
| 979 |
2446409 - Disclosure - Employee benefits - Change in Principal Actuarial Assumptions (Details) |
Network |
* |
* |
http://www.cgi.com/role/EmployeeBenefitsChangeInPrincipalActuarialAssumptionsDetails |
| 980 |
Disclosure of sensitivity analysis for actuarial assumptions [table] |
Table |
* |
* |
ifrs-full:DisclosureOfSensitivityAnalysisForActuarialAssumptionsTable |
| 981 |
Actuarial assumptions [axis] |
Axis |
|
|
ifrs-full:ActuarialAssumptionsAxis |
| 982 |
Actuarial assumptions [member] |
Member |
|
|
ifrs-full:ActuarialAssumptionsMember |
| 983 |
Actuarial assumption of discount rates |
Member |
|
|
ifrs-full:ActuarialAssumptionOfDiscountRatesMember |
| 984 |
Actuarial assumption of expected rates of salary increases |
Member |
|
|
ifrs-full:ActuarialAssumptionOfExpectedRatesOfSalaryIncreasesMember |
| 985 |
Actuarial assumption of expected rates of pension increases |
Member |
|
|
ifrs-full:ActuarialAssumptionOfExpectedRatesOfPensionIncreasesMember |
| 986 |
Actuarial assumption of expected rates of inflation |
Member |
|
|
ifrs-full:ActuarialAssumptionOfExpectedRatesOfInflationMember |
| 987 |
Actuarial assumption of life expectancy after retirement |
Member |
|
|
ifrs-full:ActuarialAssumptionOfLifeExpectancyAfterRetirementMember |
| 988 |
Geographical areas [axis] |
Axis |
|
|
ifrs-full:GeographicalAreasAxis |
| 989 |
Geographical areas [member] |
Member |
|
|
ifrs-full:GeographicalAreasMember |
| 990 |
U.K. |
Member |
|
|
country:GB |
| 991 |
Germany |
Member |
|
|
country:DE |
| 992 |
France |
Member |
|
|
country:FR |
| 993 |
Disclosure of sensitivity analysis for actuarial assumptions [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfSensitivityAnalysisForActuarialAssumptionsLineItems |
| 994 |
Percentage of reasonably possible increase in actuarial assumption |
Concept (Percent) |
As Of |
|
ifrs-full:PercentageOfReasonablyPossibleIncreaseInActuarialAssumption |
| 995 |
Percentage of reasonably possible decrease in actuarial assumption |
Concept (Percent) |
As Of |
|
ifrs-full:PercentageOfReasonablyPossibleDecreaseInActuarialAssumption |
| 996 |
Period of reasonably possible increase in actuarial assumption |
Concept (xbrli:durationItemType) |
For Period |
|
gib:PeriodOfReasonablyPossibleIncreaseInActuarialAssumption |
| 997 |
Period of reasonably possible decrease in actuarial assumption |
Concept (xbrli:durationItemType) |
For Period |
|
gib:PeriodOfReasonablyPossibleDecreaseInActuarialAssumption |
| 998 |
Increase (decrease) in defined benefit obligation due to reasonably possible increase in actuarial assumption |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleIncreaseInActuarialAssumption |
| 999 |
Increase (decrease) in defined benefit obligation due to reasonably possible decrease in actuarial assumption |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleDecreaseInActuarialAssumption |
| 1000 |
2446410 - Disclosure - Employee benefits - Weighted Average Duration of Benefit Obligations (Details) |
Network |
* |
* |
http://www.cgi.com/role/EmployeeBenefitsWeightedAverageDurationOfBenefitObligationsDetails |
| 1001 |
Disclosure of defined benefit plans [table] |
Table |
* |
* |
ifrs-full:DisclosureOfDefinedBenefitPlansTable |
| 1002 |
Geographical areas [axis] |
Axis |
|
|
ifrs-full:GeographicalAreasAxis |
| 1003 |
Geographical areas [member] |
Member |
|
|
ifrs-full:GeographicalAreasMember |
| 1004 |
U.K. |
Member |
|
|
country:GB |
| 1005 |
Germany |
Member |
|
|
country:DE |
| 1006 |
France |
Member |
|
|
country:FR |
| 1007 |
Other |
Member |
|
|
gib:OtherCountriesMember |
| 1008 |
Disclosure of defined benefit plans [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfDefinedBenefitPlansLineItems |
| 1009 |
Weighted average duration of defined benefit obligation |
Concept (Decimal) |
For Period |
|
ifrs-full:WeightedAverageDurationOfDefinedBenefitObligation |
| 1010 |
2449402 - Disclosure - Accumulated other comprehensive income (Details) |
Network |
* |
* |
http://www.cgi.com/role/AccumulatedOtherComprehensiveIncomeDetails |
| 1011 |
Implied Table |
Table |
* |
* |
implied:Table |
| 1012 |
Analysis Of Other Comprehensive Income By Item [Abstract] |
Abstract |
|
|
gib:AnalysisOfOtherComprehensiveIncomeByItemAbstract |
| 1013 |
Items that will be reclassified subsequently to net earnings (net of income taxes): |
Abstract |
|
|
ifrs-full:ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract |
| 1014 |
Net unrealized gains on translating financial statements of foreign operations, net of accumulated income tax expense of $72,054 as at September 30, 2018 ($65,850 as at September 30, 2017) |
Concept (Monetary) |
As Of |
Credit |
gib:AccumulatedOtherComprehensiveIncomeExchangeDifferencesOnTranslation |
| 1015 |
Net losses on derivative financial instruments and on translating long-term debt designated as hedges of net investments in foreign operations, net of accumulated income tax recovery of $73,502 as at September 30, 2018 ($69,296 as at September 30, 2017) |
Concept (Monetary) |
As Of |
Credit |
gib:AccumulatedOtherComprehensiveIncomeHedgesOfNetInvestmentsInForeignOperations |
| 1016 |
Net unrealized (losses) gains on cash flow hedges, net of accumulated income tax recovery of $12,286 as at September 30, 2018 (net of accumulated tax expense of $2,332 as at September 30, 2017) |
Concept (Monetary) |
As Of |
Credit |
gib:AccumulatedOtherComprehensiveIncomeCashFlowHedges |
| 1017 |
Net unrealized losses on available-for-sale investments, net of accumulated income tax recovery of $734 as at September 30, 2018 ($178 as at September 30, 2017) |
Concept (Monetary) |
As Of |
Credit |
gib:AccumulatedOtherComprehensiveIncomeAvailableForSaleFinancialAssets |
| 1018 |
Items that will be reclassified subsequently to net earnings, tax portion: |
Abstract |
|
|
ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossAbstract |
| 1019 |
Net unrealized gains on translating financial statement of foreign operations, accumulated income tax expense (recovery) |
Concept (Monetary) |
As Of |
Debit |
gib:IncomeTaxExpenseRecoveryRelatingToExchangeDifferencesOnTranslationIncludedInAccumulatedOtherComprehensiveIncome |
| 1020 |
Net losses on derivative financial instruments and translating long-term debt designated as hedges in net investments in foreign operations, accumulated income tax expense (recovery) |
Concept (Monetary) |
As Of |
Debit |
gib:IncomeTaxExpenseRecoveryRelatingToHedgesOfNetInvestmentsInForeignOperationsIncludedInAccumulatedOtherComprehensiveIncome |
| 1021 |
Net unrealized (losses) gains on cash flow hedges, accumulated income tax expense (recovery) |
Concept (Monetary) |
As Of |
Debit |
gib:IncomeTaxExpenseRecoveryRelatingToCashFlowHedgesIncludedInAccumulatedOtherComprehensiveIncome |
| 1022 |
Net unrealized (losses) gains on available-for-sale investments, accumulated income tax expense (recovery) |
Concept (Monetary) |
As Of |
Debit |
gib:IncomeTaxExpenseRecoveryRelatingToAvailableForSaleFinancialAssetsIncludedInAccumulatedOtherComprehensiveIncome |
| 1023 |
Items that will not be reclassified subsequently to net earnings (net of income taxes): |
Abstract |
|
|
ifrs-full:ComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTaxAbstract |
| 1024 |
Net remeasurement losses on defined benefit plans, net of accumulated income tax recovery of $13,021 as at September 30, 2018 ($20,933 as at September 30, 2017) |
Concept (Monetary) |
As Of |
Credit |
gib:AccumulatedOtherComprehensiveIncomeGainLossOnRemeasurementsOfDefinedBenefitPlans |
| 1025 |
Items that will not be reclassified subsequently to net earnings, tax portion: |
Abstract |
|
|
ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossAbstract |
| 1026 |
Net remeasurement losses on defined benefit plans, accumulated income tax expense (recovery) |
Concept (Monetary) |
As Of |
Debit |
gib:IncomeTaxExpenseRecoveryRelatingToRemeasurementsOfDefinedBenefitPlansIncludedInAccumulatedOtherComprehensiveIncome |
| 1027 |
Accumulated other comprehensive income |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:AccumulatedOtherComprehensiveIncome |
| 1028 |
Net unrealized gains on cash flow hedges previously recognized in other comprehensive income, reclassified to net earnings |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ReclassificationAdjustmentsOnCashFlowHedgesNetOfTax |
| 1029 |
Net unrealized gains on cash flow hedges previously recognized in other comprehensive income, reclassified to net earnings, income tax expense |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:IncomeTaxRelatingToCashFlowHedgesOfOtherComprehensiveIncome |
| 1030 |
2452402 - Disclosure - Capital stock (Details) |
Network |
* |
* |
http://www.cgi.com/role/CapitalStockDetails |
| 1031 |
Disclosure of classes of share capital [table] |
Table |
* |
* |
ifrs-full:DisclosureOfClassesOfShareCapitalTable |
| 1032 |
Non-adjusting events after reporting period [axis] |
Axis |
|
|
ifrs-full:NonadjustingEventsAfterReportingPeriodAxis |
| 1033 |
Non-adjusting events after reporting period [member] |
Member |
|
|
ifrs-full:NonadjustingEventsMember |
| 1034 |
Major ordinary share transactions [member] |
Member |
|
|
ifrs-full:MajorOrdinaryShareTransactionsMember |
| 1035 |
Share Repurchase Program 1 [Axis] |
Axis |
|
|
gib:ShareRepurchaseProgram1Axis |
| 1036 |
Share Repurchase Program 1 [Domain] |
Member |
|
|
gib:ShareRepurchaseProgram1Domain |
| 1037 |
NCIB |
Member |
|
|
gib:NormalCourseIssuerBidMember |
| 1038 |
Caisse de depot |
Member |
|
|
gib:NormalCourseIssuerBidCaisseDeDepotMember |
| 1039 |
Private Agreement - Founder and Executive Chairman of the Board |
Member |
|
|
gib:PrivateAgreementFounderAndExecutiveChairmanOfTheBoardMember |
| 1040 |
Types of share-based payment arrangements [axis] |
Axis |
|
|
ifrs-full:TypesOfSharebasedPaymentArrangementsAxis |
| 1041 |
Share-based payment arrangements [member] |
Member |
|
|
ifrs-full:SharebasedPaymentArrangementsMember |
| 1042 |
PSUs |
Member |
|
|
gib:PerformanceShareUnitsPSUsMember |
| 1043 |
Components of equity [axis] |
Axis |
|
|
ifrs-full:ComponentsOfEquityAxis |
| 1044 |
Equity [member] |
Member |
|
|
ifrs-full:EquityMember |
| 1045 |
Contributed surplus |
Member |
|
|
ifrs-full:AdditionalPaidinCapitalMember |
| 1046 |
Capital stock |
Member |
|
|
ifrs-full:IssuedCapitalMember |
| 1047 |
Retained earnings |
Member |
|
|
ifrs-full:RetainedEarningsMember |
| 1048 |
Classes of share capital [axis] |
Axis |
|
|
ifrs-full:ClassesOfShareCapitalAxis |
| 1049 |
Share capital [member] |
Member |
|
|
ifrs-full:ClassesOfShareCapitalMember |
| 1050 |
Preferred shares |
Member |
|
|
ifrs-full:PreferenceSharesMember |
| 1051 |
Class A subordinate shares |
Member |
|
|
gib:ClassASubordinateVotingSharesMember |
| 1052 |
Class B multiple voting shares |
Member |
|
|
gib:ClassBMultipleVotingSharesMember |
| 1053 |
Disclosure of classes of share capital [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfClassesOfShareCapitalLineItems |
| 1054 |
Number of votes per share |
Concept (Integer) |
For Period |
|
gib:NumberOfVotes |
| 1055 |
Reconciliation of number of shares outstanding [abstract] |
Abstract |
|
|
ifrs-full:ReconciliationOfNumberOfSharesOutstandingAbstract |
| 1056 |
Beginning balance (in shares) |
Concept (Shares) |
As Of |
|
ifrs-full:NumberOfSharesOutstanding |
| 1057 |
Beginning balance |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:Equity |
| 1058 |
Issued upon exercise of stock options (in shares) |
Concept (Decimal) |
For Period |
|
ifrs-full:NumberOfShareOptionsExercisedInSharebasedPaymentArrangement |
| 1059 |
Issued upon exercise of stock options |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:IncreaseDecreaseThroughExerciseOfOptions |
| 1060 |
PSUs exercised (in shares) |
Concept (Decimal) |
For Period |
|
ifrs-full:NumberOfOtherEquityInstrumentsExercisedOrVestedInSharebasedPaymentArrangement |
| 1061 |
PSUs exercised |
Concept (Monetary) |
For Period |
Credit |
gib:IncreaseDecreaseThroughExerciseOfOtherEquityInstrumentsEquity |
| 1062 |
Purchased and cancelled (in shares) |
Concept (Shares) |
For Period |
|
gib:NumberOfTreasurySharesPurchasedAndCancelled |
| 1063 |
Purchased and cancelled |
Concept (Monetary) |
For Period |
Debit |
gib:PurchaseAndCancellationOfTreasuryShares |
| 1064 |
Purchased and not cancelled (in shares) |
Concept (Shares) |
For Period |
|
gib:NumberOfTreasurySharesPurchasedAndNotCancelled |
| 1065 |
Purchased and not cancelled |
Concept (Monetary) |
For Period |
Debit |
gib:PurchaseOfTreasurySharesNotCancelled |
| 1066 |
Purchased and held in trust (in shares) |
Concept (Shares) |
For Period |
|
gib:NumberOfSharesPurchased |
| 1067 |
Purchased and held in trust |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:PurchaseOfTreasuryShares |
| 1068 |
Shares held in trust resold (in shares) |
Concept (Shares) |
For Period |
|
gib:NumberOfSharesSoldOrIssued |
| 1069 |
Shares held in trust resold |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:SaleOrIssueOfTreasuryShares |
| 1070 |
Conversion of shares (in shares) |
Concept (Shares) |
For Period |
|
gib:NumberOfSharesConvertedThroughConversionOfConvertibleInstruments |
| 1071 |
Conversion of shares |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:IncreaseDecreaseThroughConversionOfConvertibleInstruments |
| 1072 |
Ending balance (in shares) |
Concept (Shares) |
As Of |
|
ifrs-full:NumberOfSharesOutstanding |
| 1073 |
Ending balance |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:Equity |
| 1074 |
Shares outstanding, held in trust (in shares) |
Concept (Shares) |
As Of |
|
gib:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangementHeldInTrust |
| 1075 |
Number of shares authorized for purchase and cancellation (in shares) |
Concept (Shares) |
For Period |
|
gib:NumberOfSharesAuthorisedForPurchaseAndCancellation |
| 1076 |
Purchase and cancellation of Class A subordinate voting shares |
Concept (Monetary) |
For Period |
Credit |
gib:PaymentsToAcquireOrRedeemEntitysSharesAndCancellation |
| 1077 |
Transaction costs |
Concept (Monetary) |
For Period |
Debit |
gib:TransactionCosts |
| 1078 |
Shares purchased (in shares) |
Concept (Shares) |
For Period |
|
gib:NumberOfSharesPurchasedHeldInTrust |
| 1079 |
Shares held in trust resold (in shares) |
Concept (Shares) |
For Period |
|
gib:NumberOfSharesSoldOrIssuedPreviouslyHeldInTrust |
| 1080 |
2455402 - Disclosure - Share-based payments - Stock options (Narrative) (Details) |
Network |
* |
* |
http://www.cgi.com/role/ShareBasedPaymentsStockOptionsNarrativeDetails |
| 1081 |
Disclosure of classes of share capital [table] |
Table |
* |
* |
ifrs-full:DisclosureOfClassesOfShareCapitalTable |
| 1082 |
Types of share-based payment arrangements [axis] |
Axis |
|
|
ifrs-full:TypesOfSharebasedPaymentArrangementsAxis |
| 1083 |
Share-based payment arrangements [member] |
Member |
|
|
ifrs-full:SharebasedPaymentArrangementsMember |
| 1084 |
Stock options |
Member |
|
|
gib:EmployeeStockOption1Member |
| 1085 |
Classes of share capital [axis] |
Axis |
|
|
ifrs-full:ClassesOfShareCapitalAxis |
| 1086 |
Share capital [member] |
Member |
|
|
ifrs-full:ClassesOfShareCapitalMember |
| 1087 |
Class A subordinate shares |
Member |
|
|
gib:ClassASubordinateVotingSharesMember |
| 1088 |
Disclosure of classes of share capital [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfClassesOfShareCapitalLineItems |
| 1089 |
Vesting period for stock options |
Concept (xbrli:durationItemType) |
For Period |
|
gib:ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod2 |
| 1090 |
Expiration period for stock options |
Concept (xbrli:durationItemType) |
For Period |
|
gib:ShareBasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod1 |
| 1091 |
Number of shares reserved for issuance under the stock option plan (in shares) |
Concept (Shares) |
As Of |
|
ifrs-full:SharesReservedForIssueUnderOptionsAndContractsForSaleOfShares |
| 1092 |
2455403 - Disclosure - Share-based payments - Disclosure of Information Concerning Outstanding Stock Options (Details) |
Network |
* |
* |
http://www.cgi.com/role/ShareBasedPaymentsDisclosureOfInformationConcerningOutstandingStockOptionsDetails |
| 1093 |
Implied Table |
Table |
* |
* |
implied:Table |
| 1094 |
Share-Based Payment Arrangements [Abstract] |
Abstract |
|
|
gib:ShareBasedPaymentArrangementsAbstract |
| 1095 |
Outstanding, beginning of year (in shares) |
Concept (Decimal) |
As Of |
|
ifrs-full:NumberOfOutstandingShareOptions |
| 1096 |
Granted (in shares) |
Concept (Decimal) |
For Period |
|
ifrs-full:NumberOfShareOptionsGrantedInSharebasedPaymentArrangement |
| 1097 |
Exercised (in shares) |
Concept (Decimal) |
For Period |
|
ifrs-full:NumberOfShareOptionsExercisedInSharebasedPaymentArrangement |
| 1098 |
Forfeited (in shares) |
Concept (Decimal) |
For Period |
|
ifrs-full:NumberOfShareOptionsForfeitedInSharebasedPaymentArrangement |
| 1099 |
Expired (in shares) |
Concept (Decimal) |
For Period |
|
ifrs-full:NumberOfShareOptionsExpiredInSharebasedPaymentArrangement |
| 1100 |
Outstanding, end of year (in shares) |
Concept (Decimal) |
As Of |
|
ifrs-full:NumberOfOutstandingShareOptions |
| 1101 |
Exercisable, end of year (in shares) |
Concept (Decimal) |
As Of |
|
ifrs-full:NumberOfShareOptionsExercisableInSharebasedPaymentArrangement |
| 1102 |
Outstanding, beginning of year (in CAD per share) |
Concept (Monetary) |
As Of |
|
ifrs-full:WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement |
| 1103 |
Granted (in CAD per share) |
Concept (Monetary) |
For Period |
|
ifrs-full:WeightedAverageExercisePriceOfShareOptionsGrantedInSharebasedPaymentArrangement |
| 1104 |
Exercised (in CAD per share) |
Concept (Monetary) |
For Period |
|
ifrs-full:WeightedAverageExercisePriceOfShareOptionsExercisedInSharebasedPaymentArrangement |
| 1105 |
Forfeited (in CAD per share) |
Concept (Monetary) |
For Period |
|
ifrs-full:WeightedAverageExercisePriceOfShareOptionsForfeitedInSharebasedPaymentArrangement |
| 1106 |
Expired (in CAD per share) |
Concept (Monetary) |
For Period |
|
ifrs-full:WeightedAverageExercisePriceOfShareOptionsExpiredInSharebasedPaymentArrangement |
| 1107 |
Outstanding, end of year (in CAD per share) |
Concept (Monetary) |
As Of |
|
ifrs-full:WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement |
| 1108 |
Exercisable, end of year (in CAD per share) |
Concept (Monetary) |
As Of |
|
ifrs-full:WeightedAverageExercisePriceOfShareOptionsExercisableInSharebasedPaymentArrangement |
| 1109 |
2455404 - Disclosure - Share-based payments - Disclosure of Range of Exercise Prices, Number of Options and Weighted Average Remaining Contractual Life (Details) |
Network |
* |
* |
http://www.cgi.com/role/ShareBasedPaymentsDisclosureOfRangeOfExercisePricesNumberOfOptionsAndWeightedAverageRemainingContractualLifeDetails |
| 1110 |
Disclosure of number and weighted average remaining contractual life of outstanding share options [table] |
Table |
* |
* |
ifrs-full:DisclosureOfNumberAndWeightedAverageRemainingContractualLifeOfOutstandingShareOptionsTable |
| 1111 |
Ranges of exercise prices for outstanding share options [axis] |
Axis |
|
|
ifrs-full:RangesOfExercisePricesForOutstandingShareOptionsAxis |
| 1112 |
Ranges of exercise prices for outstanding share options [member] |
Member |
|
|
ifrs-full:RangesOfExercisePricesForOutstandingShareOptionsMember |
| 1113 |
9.31 to 13.26 |
Member |
|
|
gib:ExercisePriceRangeOneMember |
| 1114 |
14.48 to 15.96 |
Member |
|
|
gib:ExercisePriceRangeTwoMember |
| 1115 |
19.28 to 21.31 |
Member |
|
|
gib:ExercisePriceRangeThreeMember |
| 1116 |
23.65 to 30.79 |
Member |
|
|
gib:ExercisePriceRangeFourMember |
| 1117 |
34.68 to 38.79 |
Member |
|
|
gib:ExercisePriceRangeFiveMember |
| 1118 |
39.47 to 47.36 |
Member |
|
|
gib:ExercisePriceRangeSixMember |
| 1119 |
47.81 to 56.69 |
Member |
|
|
gib:ExercisePriceRangeSevenMember |
| 1120 |
57.21 to 63.72 |
Member |
|
|
gib:ExercisePriceRangeEightMember |
| 1121 |
67.04 to 85.62 |
Member |
|
|
gib:ExercisePriceRangeNineMember |
| 1122 |
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfNumberAndWeightedAverageRemainingContractualLifeOfOutstandingShareOptionsLineItems |
| 1123 |
Number of options outstanding (in shares) |
Concept (Decimal) |
As Of |
|
ifrs-full:NumberOfOutstandingShareOptions |
| 1124 |
Weighted average remaining contractual life of options outstanding |
Concept (Decimal) |
As Of |
|
ifrs-full:WeightedAverageRemainingContractualLifeOfOutstandingShareOptions |
| 1125 |
Weighted average exercise price of options outstanding (in CAD per share) |
Concept (Monetary) |
As Of |
|
ifrs-full:WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement |
| 1126 |
Number of options exercisable (in shares) |
Concept (Decimal) |
As Of |
|
ifrs-full:NumberOfShareOptionsExercisableInSharebasedPaymentArrangement |
| 1127 |
Weighted average exercise price of options exercisable (in CAD per share) |
Concept (Monetary) |
As Of |
|
ifrs-full:WeightedAverageExercisePriceOfShareOptionsExercisableInSharebasedPaymentArrangement |
| 1128 |
2455404 - Disclosure - Share-based payments - Disclosure of Range of Exercise Prices, Number of Options and Weighted Average Remaining Contractual Life (Details) |
Network |
* |
* |
http://www.cgi.com/role/ShareBasedPaymentsDisclosureOfRangeOfExercisePricesNumberOfOptionsAndWeightedAverageRemainingContractualLifeDetails |
| 1129 |
Disclosure of range of exercise prices of outstanding share options [table] |
Table |
* |
* |
ifrs-full:DisclosureOfRangeOfExercisePricesOfOutstandingShareOptionsTable |
| 1130 |
Ranges of exercise prices for outstanding share options [axis] |
Axis |
|
|
ifrs-full:RangesOfExercisePricesForOutstandingShareOptionsAxis |
| 1131 |
Ranges of exercise prices for outstanding share options [member] |
Member |
|
|
ifrs-full:RangesOfExercisePricesForOutstandingShareOptionsMember |
| 1132 |
9.31 to 13.26 |
Member |
|
|
gib:ExercisePriceRangeOneMember |
| 1133 |
14.48 to 15.96 |
Member |
|
|
gib:ExercisePriceRangeTwoMember |
| 1134 |
19.28 to 21.31 |
Member |
|
|
gib:ExercisePriceRangeThreeMember |
| 1135 |
23.65 to 30.79 |
Member |
|
|
gib:ExercisePriceRangeFourMember |
| 1136 |
34.68 to 38.79 |
Member |
|
|
gib:ExercisePriceRangeFiveMember |
| 1137 |
39.47 to 47.36 |
Member |
|
|
gib:ExercisePriceRangeSixMember |
| 1138 |
47.81 to 56.69 |
Member |
|
|
gib:ExercisePriceRangeSevenMember |
| 1139 |
57.21 to 63.72 |
Member |
|
|
gib:ExercisePriceRangeEightMember |
| 1140 |
67.04 to 85.62 |
Member |
|
|
gib:ExercisePriceRangeNineMember |
| 1141 |
Range [axis] |
Axis |
|
|
ifrs-full:RangeAxis |
| 1142 |
Ranges [member] |
Member |
|
|
ifrs-full:RangesMember |
| 1143 |
Minimum |
Member |
|
|
ifrs-full:BottomOfRangeMember |
| 1144 |
Maximum |
Member |
|
|
ifrs-full:TopOfRangeMember |
| 1145 |
Disclosure of range of exercise prices of outstanding share options [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfRangeOfExercisePricesOfOutstandingShareOptionsLineItems |
| 1146 |
Exercise price (in CAD per share) |
Concept (Monetary) |
As Of |
|
ifrs-full:ExercisePriceOfOutstandingShareOptions |
| 1147 |
2455405 - Disclosure - Share-based payments - Disclosure of Weighted Average Assumptions Used in the Calculation of Fair Value of Stock Options (Details) |
Network |
* |
* |
http://www.cgi.com/role/ShareBasedPaymentsDisclosureOfWeightedAverageAssumptionsUsedInCalculationOfFairValueOfStockOptionsDetails |
| 1148 |
Implied Table |
Table |
* |
* |
implied:Table |
| 1149 |
Share-Based Payment Arrangements [Abstract] |
Abstract |
|
|
gib:ShareBasedPaymentArrangementsAbstract |
| 1150 |
Grant date fair value (in CAD per share) |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:WeightedAverageFairValueAtMeasurementDateShareOptionsGranted |
| 1151 |
Dividend yield (%) |
Concept (Percent) |
For Period |
|
ifrs-full:ExpectedDividendAsPercentageShareOptionsGranted |
| 1152 |
Expected volatility (%) |
Concept (Percent) |
For Period |
|
ifrs-full:DescriptionOfExpectedVolatilityShareOptionsGranted |
| 1153 |
Risk-free interest rate (%) |
Concept (Percent) |
For Period |
|
ifrs-full:DescriptionOfRiskFreeInterestRateShareOptionsGranted |
| 1154 |
Expected life (years) |
Concept (Decimal) |
For Period |
|
ifrs-full:DescriptionOfOptionLifeShareOptionsGranted |
| 1155 |
Exercise price (in CAD per share) |
Concept (Monetary) |
For Period |
|
ifrs-full:ExercisePriceShareOptionsGranted |
| 1156 |
Share price (in CAD per share) |
Concept (Monetary) |
For Period |
|
ifrs-full:WeightedAverageSharePriceShareOptionsGranted |
| 1157 |
2455406 - Disclosure - Share-based payments - Performance share units (Narrative) (Details) |
Network |
* |
* |
http://www.cgi.com/role/ShareBasedPaymentsPerformanceShareUnitsNarrativeDetails |
| 1158 |
Disclosure of terms and conditions of share-based payment arrangement [table] |
Table |
* |
* |
ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable |
| 1159 |
Classes of share capital [axis] |
Axis |
|
|
ifrs-full:ClassesOfShareCapitalAxis |
| 1160 |
Share capital [member] |
Member |
|
|
ifrs-full:ClassesOfShareCapitalMember |
| 1161 |
Class A subordinate shares |
Member |
|
|
gib:ClassASubordinateVotingSharesMember |
| 1162 |
Types of share-based payment arrangements [axis] |
Axis |
|
|
ifrs-full:TypesOfSharebasedPaymentArrangementsAxis |
| 1163 |
Share-based payment arrangements [member] |
Member |
|
|
ifrs-full:SharebasedPaymentArrangementsMember |
| 1164 |
PSUs |
Member |
|
|
gib:PerformanceShareUnitsPSUsMember |
| 1165 |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems |
| 1166 |
Number of shares per PSU to which participants are entitled (in shares) |
Concept (Shares) |
For Period |
|
gib:NumberOfSharesToBeReceivedForEachInstrumentGrantedInShareBasedPaymentArrangement |
| 1167 |
Vesting period for PSUs |
Concept (xbrli:durationItemType) |
For Period |
|
gib:ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod2 |
| 1168 |
2455407 - Disclosure - Share-based payments - Disclosure of Information Concerning PSUs (Details) |
Network |
* |
* |
http://www.cgi.com/role/ShareBasedPaymentsDisclosureOfInformationConcerningPsusDetails |
| 1169 |
Disclosure of terms and conditions of share-based payment arrangement [table] |
Table |
* |
* |
ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable |
| 1170 |
Types of share-based payment arrangements [axis] |
Axis |
|
|
ifrs-full:TypesOfSharebasedPaymentArrangementsAxis |
| 1171 |
Share-based payment arrangements [member] |
Member |
|
|
ifrs-full:SharebasedPaymentArrangementsMember |
| 1172 |
PSUs |
Member |
|
|
gib:PerformanceShareUnitsPSUsMember |
| 1173 |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems |
| 1174 |
Outstanding, beginning of period |
Concept (Decimal) |
As Of |
|
ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement |
| 1175 |
Granted |
Concept (Decimal) |
For Period |
|
ifrs-full:NumberOfInstrumentsOtherEquityInstrumentsGranted |
| 1176 |
Exercised |
Concept (Decimal) |
For Period |
|
ifrs-full:NumberOfOtherEquityInstrumentsExercisedOrVestedInSharebasedPaymentArrangement |
| 1177 |
Forfeited |
Concept (Decimal) |
For Period |
|
ifrs-full:NumberOfOtherEquityInstrumentsForfeitedInSharebasedPaymentArrangement |
| 1178 |
Outstanding, end of period |
Concept (Decimal) |
As Of |
|
ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement |
| 1179 |
Grant date fair value (in CAD per share) |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsGranted |
| 1180 |
2455408 - Disclosure - Share-based payments - Share purchase plan (Narrative) (Details) |
Network |
* |
* |
http://www.cgi.com/role/ShareBasedPaymentsSharePurchasePlanNarrativeDetails |
| 1181 |
Disclosure of terms and conditions of share-based payment arrangement [table] |
Table |
* |
* |
ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable |
| 1182 |
Types of share-based payment arrangements [axis] |
Axis |
|
|
ifrs-full:TypesOfSharebasedPaymentArrangementsAxis |
| 1183 |
Share-based payment arrangements [member] |
Member |
|
|
ifrs-full:SharebasedPaymentArrangementsMember |
| 1184 |
Share purchase plan |
Member |
|
|
gib:EmployeeSharePurchasePlanMember |
| 1185 |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems |
| 1186 |
Maximum match of employee's basic contribution (as a percent) |
Concept (Percent) |
For Period |
|
gib:ShareBasedPaymentArrangementEmployerMatchingContributionPercentOfMatch |
| 1187 |
2455409 - Disclosure - Share-based payments - Deferred share unit plan (Narrative) (Details) |
Network |
* |
* |
http://www.cgi.com/role/ShareBasedPaymentsDeferredShareUnitPlanNarrativeDetails |
| 1188 |
Disclosure of terms and conditions of share-based payment arrangement [table] |
Table |
* |
* |
ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable |
| 1189 |
Types of share-based payment arrangements [axis] |
Axis |
|
|
ifrs-full:TypesOfSharebasedPaymentArrangementsAxis |
| 1190 |
Share-based payment arrangements [member] |
Member |
|
|
ifrs-full:SharebasedPaymentArrangementsMember |
| 1191 |
DSUs |
Member |
|
|
gib:DeferredShareUnitPlanMember |
| 1192 |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems |
| 1193 |
Number of outstanding DSUs (in shares) |
Concept (Decimal) |
As Of |
|
ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement |
| 1194 |
2455410 - Disclosure - Share-based payments - Disclosure of Share-Based Payment Expense (Details) |
Network |
* |
* |
http://www.cgi.com/role/ShareBasedPaymentsDisclosureOfShareBasedPaymentExpenseDetails |
| 1195 |
Disclosure of terms and conditions of share-based payment arrangement [table] |
Table |
* |
* |
ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable |
| 1196 |
Types of share-based payment arrangements [axis] |
Axis |
|
|
ifrs-full:TypesOfSharebasedPaymentArrangementsAxis |
| 1197 |
Share-based payment arrangements [member] |
Member |
|
|
ifrs-full:SharebasedPaymentArrangementsMember |
| 1198 |
Stock options |
Member |
|
|
gib:EmployeeStockOption1Member |
| 1199 |
PSUs |
Member |
|
|
gib:PerformanceShareUnitsPSUsMember |
| 1200 |
Share purchase plan |
Member |
|
|
gib:EmployeeSharePurchasePlanMember |
| 1201 |
DSUs |
Member |
|
|
gib:DeferredShareUnitPlanMember |
| 1202 |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems |
| 1203 |
Share-based payment expense |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ExpenseFromSharebasedPaymentTransactionsWithEmployees |
| 1204 |
2458402 - Disclosure - Earnings per share (Details) |
Network |
* |
* |
http://www.cgi.com/role/EarningsPerShareDetails |
| 1205 |
Earnings per share [table] |
Table |
* |
* |
ifrs-full:EarningsPerShareTable |
| 1206 |
Types of share-based payment arrangements [axis] |
Axis |
|
|
ifrs-full:TypesOfSharebasedPaymentArrangementsAxis |
| 1207 |
Share-based payment arrangements [member] |
Member |
|
|
ifrs-full:SharebasedPaymentArrangementsMember |
| 1208 |
PSUs |
Member |
|
|
gib:PerformanceShareUnitsPSUsMember |
| 1209 |
Classes of share capital [axis] |
Axis |
|
|
ifrs-full:ClassesOfShareCapitalAxis |
| 1210 |
Share capital [member] |
Member |
|
|
ifrs-full:ClassesOfShareCapitalMember |
| 1211 |
Class A subordinate shares |
Member |
|
|
gib:ClassASubordinateVotingSharesMember |
| 1212 |
Components of equity [axis] |
Axis |
|
|
ifrs-full:ComponentsOfEquityAxis |
| 1213 |
Equity [member] |
Member |
|
|
ifrs-full:EquityMember |
| 1214 |
Capital stock |
Member |
|
|
ifrs-full:IssuedCapitalMember |
| 1215 |
Earnings per share [line items] |
LineItems |
|
|
ifrs-full:EarningsPerShareLineItems |
| 1216 |
Anti-dilutive securities excluded from computation of earnings per share (in shares) |
Concept (Shares) |
For Period |
|
gib:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount1 |
| 1217 |
2461402 - Disclosure - Construction contracts in progress (Details) |
Network |
* |
* |
http://www.cgi.com/role/ConstructionContractsInProgressDetails |
| 1218 |
Implied Table |
Table |
* |
* |
implied:Table |
| 1219 |
Construction Contracts [Abstract] |
Abstract |
|
|
gib:ConstructionContractsAbstract |
| 1220 |
Revenue in the respective year |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:RevenueFromConstructionContracts |
| 1221 |
Amounts due from customers under construction contracts |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:GrossAmountDueFromCustomersForContractWorkAsAsset |
| 1222 |
Amounts due to customers under construction contracts |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:GrossAmountDueToCustomersForContractWorkAsLiability |
| 1223 |
Retentions held by customers for contract work in progress |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:RetentionForContractsInProgress |
| 1224 |
2464402 - Disclosure - Cost of services, selling and administrative (Details) |
Network |
* |
* |
http://www.cgi.com/role/CostOfServicesSellingAndAdministrativeDetails |
| 1225 |
Implied Table |
Table |
* |
* |
implied:Table |
| 1226 |
Analysis of income and expense [abstract] |
Abstract |
|
|
ifrs-full:AnalysisOfIncomeAndExpenseAbstract |
| 1227 |
Salaries and other member costs |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:EmployeeBenefitsExpense |
| 1228 |
Professional fees and other contracted labour |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ProfessionalFeesExpense |
| 1229 |
Hardware, software and data center related costs |
Concept (Monetary) |
For Period |
Debit |
gib:HardwareSoftwareAndDataCenterRelatedExpense |
| 1230 |
Property costs |
Concept (Monetary) |
For Period |
Debit |
gib:PropertyCosts |
| 1231 |
Amortization and depreciation |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:DepreciationAndAmortisationExpense |
| 1232 |
Other operating expenses |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:OtherOperatingIncomeExpense |
| 1233 |
Costs of services, selling and administrative (Note 22) |
Concept (Monetary) |
For Period |
Debit |
gib:CostOfSalesSellingGeneralAndAdministrativeExpense |
| 1234 |
Research and development expense |
Concept (Monetary) |
For Period |
Credit |
gib:ResearchAndDevelopmentAndOtherTaxCredits |
| 1235 |
2467402 - Disclosure - Amortization and depreciation (Details) |
Network |
* |
* |
http://www.cgi.com/role/AmortizationAndDepreciationDetails |
| 1236 |
Disclosure of detailed information about property, plant and equipment [table] |
Table |
* |
* |
ifrs-full:DisclosureOfPropertyPlantAndEquipmentTable |
| 1237 |
Classes of property, plant and equipment [axis] |
Axis |
|
|
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis |
| 1238 |
Property, plant and equipment |
Member |
|
|
ifrs-full:PropertyPlantAndEquipmentMember |
| 1239 |
Property, plant and equipment under finance lease |
Member |
|
|
gib:PropertyPlantAndEquipmentUnderFinanceLeasesMember |
| 1240 |
Disclosure of detailed information about property, plant and equipment [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems |
| 1241 |
Depreciation of PP&E |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:DepreciationExpense |
| 1242 |
Amortization of intangible assets |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AmortisationExpense |
| 1243 |
Amortization of contract costs related to transition costs |
Concept (Monetary) |
For Period |
Debit |
gib:AmortisationAssetsRecognisedFromCostsIncurredToObtainOrFulfilContractsWithCustomersTransactionCosts |
| 1244 |
Included in costs of services, selling and administrative |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:DepreciationAndAmortisationExpense |
| 1245 |
Amortization of contract costs related to incentives (presented as a reduction of revenue) |
Concept (Monetary) |
For Period |
Debit |
gib:AmortisationAssetsRecognisedFromCostsIncurredToObtainOrFulfilContractsWithCustomersIncentives |
| 1246 |
Amortization of deferred financing fees (presented in finance costs) |
Concept (Monetary) |
For Period |
Debit |
gib:AmortizationOfFinancingCosts1 |
| 1247 |
Amortization of premiums and discounts on investments related to funds held for clients (presented net as a reduction of revenue) |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ExpenseDueToUnwindingOfDiscountOnProvisions |
| 1248 |
Impairment of PP&E (presented in restructuring costs) |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss |
| 1249 |
Impairment of intangible assets |
Concept (Monetary) |
For Period |
|
ifrs-full:ImpairmentLossRecognisedInProfitOrLossIntangibleAssetsOtherThanGoodwill |
| 1250 |
Total amortization and depreciation |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:DepreciationAmortisationAndImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss |
| 1251 |
2470401 - Disclosure - Restructuring costs (Details) |
Network |
* |
* |
http://www.cgi.com/role/RestructuringCostsDetails |
| 1252 |
Implied Table |
Table |
* |
* |
implied:Table |
| 1253 |
Restructuring And Related Activities 1 [Abstract] |
Abstract |
|
|
gib:RestructuringAndRelatedActivities1Abstract |
| 1254 |
Restructuring costs expected to incur over next year |
Concept (Monetary) |
For Period |
Debit |
gib:RestructuringAndRelatedCostExpectedCostOverNextYear |
| 1255 |
Restructuring costs incurred |
Concept (Monetary) |
For Period |
Debit |
gib:RestructuringCostsIncurred |
| 1256 |
Restructuring costs |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ExpenseOfRestructuringActivities |
| 1257 |
Termination of employment costs |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:TerminationBenefitsExpense |
| 1258 |
Onerous lease expenses |
Concept (Monetary) |
For Period |
Debit |
gib:OnerousLeaseExpense |
| 1259 |
Impairment loss from PP&E |
Concept (Monetary) |
For Period |
|
ifrs-full:ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment |
| 1260 |
Impairment of intangible assets |
Concept (Monetary) |
For Period |
|
ifrs-full:ImpairmentLossRecognisedInProfitOrLossIntangibleAssetsOtherThanGoodwill |
| 1261 |
Other restructuring costs |
Concept (Monetary) |
For Period |
Debit |
gib:OtherRestructuringCosts1 |
| 1262 |
Restructuring costs paid |
Concept (Monetary) |
For Period |
Debit |
gib:RestructuringCostsPaid |
| 1263 |
2473402 - Disclosure - Net finance costs (Details) |
Network |
* |
* |
http://www.cgi.com/role/NetFinanceCostsDetails |
| 1264 |
Implied Table |
Table |
* |
* |
implied:Table |
| 1265 |
Analysis of income and expense [abstract] |
Abstract |
|
|
ifrs-full:AnalysisOfIncomeAndExpenseAbstract |
| 1266 |
Interest on long-term debt |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:InterestExpenseOnBorrowings |
| 1267 |
Net interest costs on net defined benefit obligations or assets (Note 16) |
Concept (Monetary) |
For Period |
Debit |
gib:NetInterestAndAdministrativeExpenseIncomeNetDefinedBenefitObligation |
| 1268 |
Other finance costs |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:OtherFinanceCost |
| 1269 |
Finance costs |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:FinanceCosts |
| 1270 |
Finance income |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:FinanceIncome |
| 1271 |
Net finance costs |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:FinanceIncomeCost |
| 1272 |
2476402 - Disclosure - Investments in subsidiaries - Narrative (Details) |
Network |
* |
* |
http://www.cgi.com/role/InvestmentsInSubsidiariesNarrativeDetails |
| 1273 |
Disclosure of detailed information about business combination [table] |
Table |
* |
* |
ifrs-full:DisclosureOfBusinessCombinationsTable |
| 1274 |
Business combinations [axis] |
Axis |
|
|
ifrs-full:BusinessCombinationsAxis |
| 1275 |
Entity's total for business combinations [member] |
Member |
|
|
ifrs-full:EntitysTotalForBusinessCombinationsMember |
| 1276 |
Affecto Plc |
Member |
|
|
gib:AffectoPlcMember |
| 1277 |
Acquisitions during 2018 |
Member |
|
|
gib:AcquisitionsDuring2018Member |
| 1278 |
Acquisitions during 2017 |
Member |
|
|
gib:AcquisitionsDuring2017Member |
| 1279 |
Acquisitions during 2018 and 2017 |
Member |
|
|
gib:AcquisitionsDuring2018And2017Member |
| 1280 |
Disclosure of detailed information about business combination [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfBusinessCombinationsLineItems |
| 1281 |
Percentage of voting equity interests acquired |
Concept (Percent) |
As Of |
|
ifrs-full:PercentageOfVotingEquityInterestsAcquired |
| 1282 |
Measurement period adjustment, decrease in intangible assets |
Concept (Monetary) |
For Period |
Debit |
gib:MeasurementPeriodAdjustmentsRecognisedForIntangibleAssetsOtherThanGoodwill |
| 1283 |
Measurement period adjustment, increase in goodwill |
Concept (Monetary) |
For Period |
Debit |
gib:MeasurementPeriodAdjustmentsRecognisedForGoodwill |
| 1284 |
Cash consideration |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CashTransferred |
| 1285 |
Expenses for acquisition-related and integration costs |
Concept (Monetary) |
For Period |
|
ifrs-full:AmountsRecognisedForTransactionRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombination |
| 1286 |
Acquisition-related costs |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AcquisitionrelatedCostsForTransactionRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombination |
| 1287 |
Integration costs |
Concept (Monetary) |
For Period |
Debit |
gib:IntegrationCostsForTransactionRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombination |
| 1288 |
Termination of employment costs |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:TerminationBenefitsExpense |
| 1289 |
Onerous lease expenses |
Concept (Monetary) |
For Period |
Debit |
gib:OnerousLeaseExpense |
| 1290 |
Other integration costs |
Concept (Monetary) |
For Period |
Debit |
gib:OtherIntegrationCostsForTransactionRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombination |
| 1291 |
2476403 - Disclosure - Investments in subsidiaries - Assets Acquired and Liabilities Assumed (Details) |
Network |
* |
* |
http://www.cgi.com/role/InvestmentsInSubsidiariesAssetsAcquiredAndLiabilitiesAssumedDetails |
| 1292 |
Disclosure of detailed information about borrowings [table] |
Table |
* |
* |
ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable |
| 1293 |
Segments [axis] |
Axis |
|
|
ifrs-full:SegmentsAxis |
| 1294 |
Segments [member] |
Member |
|
|
ifrs-full:SegmentsMember |
| 1295 |
U.S. Commercial and State Government |
Member |
|
|
gib:U.S.CommercialAndStateGovernmentMember |
| 1296 |
Canada |
Member |
|
|
gib:CanadaSegmentMember |
| 1297 |
Northern Europe |
Member |
|
|
gib:NorthernEuropeGeographicalRegionMember |
| 1298 |
Borrowings by name [axis] |
Axis |
|
|
ifrs-full:BorrowingsByNameAxis |
| 1299 |
Borrowings by name [member] |
Member |
|
|
ifrs-full:BorrowingsByNameMember |
| 1300 |
Acquired borrowings due 2021 |
Member |
|
|
gib:AcquiredBorrowingsDue2021Member |
| 1301 |
Disclosure of detailed information about borrowings [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems |
| 1302 |
Weighted average interest rate |
Concept (Percent) |
As Of |
|
ifrs-full:BorrowingsInterestRate |
| 1303 |
2479402 - Disclosure - Supplementary cash flow information - Non-cash Working Capital (Details) |
Network |
* |
* |
http://www.cgi.com/role/SupplementaryCashFlowInformationNonCashWorkingCapitalDetails |
| 1304 |
Implied Table |
Table |
* |
* |
implied:Table |
| 1305 |
Cash Flow Statement [Abstract] |
Abstract |
|
|
gib:CashFlowStatementAbstract |
| 1306 |
Accounts receivable |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables |
| 1307 |
Work in progress |
Concept (Monetary) |
For Period |
Debit |
gib:AdjustmentsForDecreaseIncreaseInWorkInProgress |
| 1308 |
Prepaid expenses and other assets |
Concept (Monetary) |
For Period |
Debit |
gib:AdjustmentsForDecreaseIncreaseInPrepaymentsAndOtherCurrentAssets |
| 1309 |
Long-term financial assets |
Concept (Monetary) |
For Period |
Debit |
gib:AdjustmentsForDecreaseIncreaseInNonCurrentFinancialAssets |
| 1310 |
Accounts payable and accrued liabilities |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables |
| 1311 |
Accrued compensation |
Concept (Monetary) |
For Period |
Debit |
gib:AdjustmentsForIncreaseDecreaseInShorttermEmployeeBenefitsAccruals |
| 1312 |
Deferred revenue |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdjustmentsForIncreaseDecreaseInDeferredIncome |
| 1313 |
Provisions |
Concept (Monetary) |
For Period |
Debit |
gib:AdjustmentsForIncreaseDecreaseInProvisions |
| 1314 |
Long-term liabilities |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdjustmentsForDecreaseIncreaseInLoansAndAdvancesToBanks |
| 1315 |
Retirement benefits obligations |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdjustmentsForIncreaseDecreaseInEmployeeBenefitLiabilities |
| 1316 |
Derivative financial instruments |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdjustmentsForIncreaseDecreaseInDerivativeFinancialLiabilities |
| 1317 |
Income taxes |
Concept (Monetary) |
For Period |
Debit |
gib:AdjustmentsForIncreaseDecreaseInTaxLiabilities |
| 1318 |
Net change in non-cash working capital items |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:IncreaseDecreaseInWorkingCapital |
| 1319 |
2479403 - Disclosure - Supplementary cash flow information - Non-cash Operating and Investing Activities (Details) |
Network |
* |
* |
http://www.cgi.com/role/SupplementaryCashFlowInformationNonCashOperatingAndInvestingActivitiesDetails |
| 1320 |
Implied Table |
Table |
* |
* |
implied:Table |
| 1321 |
Cash Flow Statement [Abstract] |
Abstract |
|
|
gib:CashFlowStatementAbstract |
| 1322 |
Cash flows from (used in) operating activities [abstract] |
Abstract |
|
|
ifrs-full:CashFlowsFromUsedInOperatingActivitiesAbstract |
| 1323 |
Accounts receivable |
Concept (Monetary) |
For Period |
Debit |
gib:NoncashAdjustmentsForAccountsReceivable |
| 1324 |
Accounts payable and accrued liabilities |
Concept (Monetary) |
For Period |
Debit |
gib:NoncashAdjustmentsForAccountsPayableAndAccruedLiabilities |
| 1325 |
Provisions |
Concept (Monetary) |
For Period |
Debit |
gib:NoncashAdjustmentsForProvisions |
| 1326 |
Non-cash operating activities |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:OtherAdjustmentsForNoncashItems |
| 1327 |
Cash flows from (used in) investing activities [abstract] |
Abstract |
|
|
ifrs-full:CashFlowsFromUsedInInvestingActivitiesAbstract |
| 1328 |
Purchase of PP&E |
Concept (Monetary) |
For Period |
Credit |
gib:NoncashPurchaseOfPropertyPlantandEquipment |
| 1329 |
Additions to intangible assets |
Concept (Monetary) |
For Period |
Credit |
gib:IntangibleAssetsAssumed |
| 1330 |
Non-cash investing activities |
Concept (Monetary) |
For Period |
Credit |
gib:NoncashInvestingActivities |
| 1331 |
2479404 - Disclosure - Supplementary cash flow information - Financing Activities (Details) |
Network |
* |
* |
http://www.cgi.com/role/SupplementaryCashFlowInformationFinancingActivitiesDetails |
| 1332 |
Disclosure of reconciliation of liabilities arising from financing activities [table] |
Table |
* |
* |
ifrs-full:DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesTable |
| 1333 |
Liabilities arising from financing activities [axis] |
Axis |
|
|
ifrs-full:LiabilitiesArisingFromFinancingActivitiesAxis |
| 1334 |
Liabilities arising from financing activities [member] |
Member |
|
|
ifrs-full:LiabilitiesArisingFromFinancingActivitiesMember |
| 1335 |
Long-term debt |
Member |
|
|
ifrs-full:LongtermBorrowingsMember |
| 1336 |
Derivative financial instruments to hedge long-term debt |
Member |
|
|
ifrs-full:AssetsHeldToHedgeLiabilitiesArisingFromFinancingActivitiesMember |
| 1337 |
Disclosure of reconciliation of liabilities arising from financing activities [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesLineItems |
| 1338 |
Financing activities |
Abstract |
|
|
ifrs-full:CashFlowsFromUsedInFinancingActivitiesAbstract |
| 1339 |
Balance, beginning of year |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:LiabilitiesArisingFromFinancingActivities |
| 1340 |
Cash used in financing activities excluding equity |
Abstract |
|
|
gib:CashFlowsFromUsedInFinancingActivitiesExcludingEquityAbstract |
| 1341 |
Net change in unsecured committed revolving credit facility |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:CashFlowsFromUsedInIncreaseDecreaseInCurrentBorrowings |
| 1342 |
Increase of long-term debt |
Concept (Monetary) |
For Period |
Debit |
gib:CashFlowsFromUsedInIncreaseDecreaseInNoncurrentBorrowings |
| 1343 |
Repayment of long-term debt |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:RepaymentsOfNoncurrentBorrowings |
| 1344 |
Repayment of debt assumed in business acquisitions |
Concept (Monetary) |
For Period |
Credit |
gib:RepaymentsOfBorrowingsAssumedInABusinessCombinationClassifiedAsFinancingActivities |
| 1345 |
Settlement of derivative financial instruments |
Concept (Monetary) |
For Period |
Credit |
gib:PaymentsForSettlementOfDerivativeFinancialInstrumentsClassifiedAsFinancingActivities |
| 1346 |
Non-cash financing activities |
Abstract |
|
|
gib:NoncashChangesArisingFromFinancingActivitiesAbstract |
| 1347 |
Increase in obligations under finance leases |
Concept (Monetary) |
For Period |
Credit |
gib:FinanceLeaseObligationsIncurred |
| 1348 |
Additions through business acquisitions |
Concept (Monetary) |
For Period |
Debit |
gib:OtherAdjustmentsForNonCashItemsAdditionsThroughBusinessAcquisitions |
| 1349 |
Changes in foreign currency exchange rate |
Concept (Monetary) |
For Period |
Debit |
gib:OtherAdjustmentsForNonCashItemsEffectofChangesinForeignExchange |
| 1350 |
Other |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:IncreaseDecreaseThroughOtherChangesLiabilitiesArisingFromFinancingActivities |
| 1351 |
Balance, end of year |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:LiabilitiesArisingFromFinancingActivities |
| 1352 |
2479405 - Disclosure - Supplementary cash flow information - Interest and Income Taxes Paid and Received (Details) |
Network |
* |
* |
http://www.cgi.com/role/SupplementaryCashFlowInformationInterestAndIncomeTaxesPaidAndReceivedDetails |
| 1353 |
Implied Table |
Table |
* |
* |
implied:Table |
| 1354 |
Cash Flow Statement [Abstract] |
Abstract |
|
|
gib:CashFlowStatementAbstract |
| 1355 |
Interest paid |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:InterestPaidClassifiedAsOperatingActivities |
| 1356 |
Interest received |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:InterestReceivedClassifiedAsOperatingActivities |
| 1357 |
Income taxes paid |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:IncomeTaxesPaidRefundClassifiedAsOperatingActivities |
| 1358 |
2482402 - Disclosure - Segmented information - Narrative (Details) |
Network |
* |
* |
http://www.cgi.com/role/SegmentedInformationNarrativeDetails |
| 1359 |
Disclosure of major customers [table] |
Table |
* |
* |
ifrs-full:DisclosureOfMajorCustomersTable |
| 1360 |
Segments [axis] |
Axis |
|
|
ifrs-full:SegmentsAxis |
| 1361 |
Segments [member] |
Member |
|
|
ifrs-full:SegmentsMember |
| 1362 |
U.S. Federal |
Member |
|
|
gib:U.S.FederalMember |
| 1363 |
Major customers [axis] |
Axis |
|
|
ifrs-full:MajorCustomersAxis |
| 1364 |
Customers [member] |
Member |
|
|
ifrs-full:MajorCustomersMember |
| 1365 |
Government |
Member |
|
|
ifrs-full:GovernmentMember |
| 1366 |
Disclosure of major customers [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfMajorCustomersLineItems |
| 1367 |
Revenue |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:Revenue |
| 1368 |
Percentage of revenues |
Concept (Percent) |
For Period |
|
ifrs-full:PercentageOfEntitysRevenue |
| 1369 |
2482403 - Disclosure - Segmented information - Disclosure of Operating Segment Information (Details) |
Network |
* |
* |
http://www.cgi.com/role/SegmentedInformationDisclosureOfOperatingSegmentInformationDetails |
| 1370 |
Disclosure of operating segments [table] |
Table |
* |
* |
ifrs-full:DisclosureOfOperatingSegmentsTable |
| 1371 |
Segments [axis] |
Axis |
|
|
ifrs-full:SegmentsAxis |
| 1372 |
Segments [member] |
Member |
|
|
ifrs-full:SegmentsMember |
| 1373 |
Northern Europe |
Member |
|
|
gib:NorthernEuropeGeographicalRegionMember |
| 1374 |
Canada |
Member |
|
|
gib:CanadaSegmentMember |
| 1375 |
France |
Member |
|
|
gib:FranceSegmentMember |
| 1376 |
U.S. Commercial and State Government |
Member |
|
|
gib:U.S.CommercialAndStateGovernmentMember |
| 1377 |
U.S. Federal |
Member |
|
|
gib:U.S.FederalMember |
| 1378 |
U.K. |
Member |
|
|
gib:UnitedKingdomSegmentMember |
| 1379 |
ECS |
Member |
|
|
gib:EasternCentralAndSouthernEuropeSegmentMember |
| 1380 |
Asia Pacific |
Member |
|
|
gib:AsiaPacificSegmentMember |
| 1381 |
Disclosure of operating segments [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfOperatingSegmentsLineItems |
| 1382 |
Segment revenue |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:Revenue |
| 1383 |
Earnings before acquisition-related and integration costs, restructuring costs, net finance costs and income tax expense |
Concept (Monetary) |
For Period |
Credit |
gib:ProfitLossBeforeAmountsRecognisedSeparatelyInBusinessCombinationExpenseOfRestructuringActivitiesFinanceCostsAndTaxExpenseIncome |
| 1384 |
Acquisition-related and integration costs |
Concept (Monetary) |
For Period |
|
ifrs-full:AmountsRecognisedForTransactionRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombination |
| 1385 |
Restructuring costs |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ExpenseOfRestructuringActivities |
| 1386 |
Net finance costs |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:FinanceIncomeCost |
| 1387 |
Earnings before income taxes |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ProfitLossBeforeTax |
| 1388 |
Amortization and depreciation |
Concept (Monetary) |
For Period |
Debit |
gib:DepreciationAndAmortisationExpenseIncludingRevenueReduction |
| 1389 |
2482404 - Disclosure - Segmented information - Disclosure of Geographic Information (Details) |
Network |
* |
* |
http://www.cgi.com/role/SegmentedInformationDisclosureOfGeographicInformationDetails |
| 1390 |
Disclosure of geographical areas [table] |
Table |
* |
* |
ifrs-full:DisclosureOfGeographicalAreasTable |
| 1391 |
Segments [axis] |
Axis |
|
|
ifrs-full:SegmentsAxis |
| 1392 |
Segments [member] |
Member |
|
|
ifrs-full:SegmentsMember |
| 1393 |
U.S |
Member |
|
|
gib:UnitedStatesOfAmericaSegmentMember |
| 1394 |
U.S. Commercial and State Government |
Member |
|
|
gib:U.S.CommercialAndStateGovernmentMember |
| 1395 |
U.S. Federal |
Member |
|
|
gib:U.S.FederalMember |
| 1396 |
Northern Europe |
Member |
|
|
gib:NorthernEuropeGeographicalRegionMember |
| 1397 |
Canada |
Member |
|
|
gib:CanadaSegmentMember |
| 1398 |
France |
Member |
|
|
gib:FranceSegmentMember |
| 1399 |
U.K. |
Member |
|
|
gib:UnitedKingdomSegmentMember |
| 1400 |
ECS |
Member |
|
|
gib:EasternCentralAndSouthernEuropeSegmentMember |
| 1401 |
Asia Pacific |
Member |
|
|
gib:AsiaPacificSegmentMember |
| 1402 |
Geographical areas [axis] |
Axis |
|
|
ifrs-full:GeographicalAreasAxis |
| 1403 |
Geographical areas [member] |
Member |
|
|
ifrs-full:GeographicalAreasMember |
| 1404 |
U.S. |
Member |
|
|
country:US |
| 1405 |
Sweden |
Member |
|
|
country:SE |
| 1406 |
Finland |
Member |
|
|
country:FI |
| 1407 |
Others |
Member |
|
|
gib:OtherNorthernEuropeGeographicAreasMember |
| 1408 |
Canada |
Member |
|
|
ifrs-full:CountryOfDomicileMember |
| 1409 |
France |
Member |
|
|
country:FR |
| 1410 |
Others |
Member |
|
|
gib:OtherFrenchGeographicalAreasMember |
| 1411 |
U.K. |
Member |
|
|
country:GB |
| 1412 |
Germany |
Member |
|
|
country:DE |
| 1413 |
Netherlands |
Member |
|
|
country:NL |
| 1414 |
Others |
Member |
|
|
gib:OtherEasternCentralAndSouthernEuropeanGeographicAreasMember |
| 1415 |
Others |
Member |
|
|
gib:OtherAsianPacificGeographicAreasMember |
| 1416 |
Rest of the world |
Member |
|
|
gib:GeographicalAreasOtherThanU.S.CanadaU.K.FranceSwedenFinlandGermanyAndNetherlandsMember |
| 1417 |
Disclosure of geographical areas [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfGeographicalAreasLineItems |
| 1418 |
Revenue |
Concept (Monetary) |
For Period |
Credit |
gib:RevenueIncludingIntersegmentSales |
| 1419 |
Revenue |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:Revenue |
| 1420 |
PP&E, contract costs and intangible assets |
Concept (Monetary) |
As Of |
Debit |
gib:PropertyPlantAndEquipmentNonCurrentContractAssetsAndIntangibleAssetsOtherThanGoodwill |
| 1421 |
2482405 - Disclosure - Segmented information - Disclosure of Revenue Information Based on Services Provided by the Company (Details) |
Network |
* |
* |
http://www.cgi.com/role/SegmentedInformationDisclosureOfRevenueInformationBasedOnServicesProvidedByCompanyDetails |
| 1422 |
Disclosure of products and services [table] |
Table |
* |
* |
ifrs-full:DisclosureOfProductsAndServicesTable |
| 1423 |
Products and services [axis] |
Axis |
|
|
ifrs-full:ProductsAndServicesAxis |
| 1424 |
Products and services [member] |
Member |
|
|
ifrs-full:ProductsAndServicesMember |
| 1425 |
IT services |
Member |
|
|
gib:OutsourcingITServicesMember |
| 1426 |
BPS |
Member |
|
|
gib:OutsourcingBusinessProcessServicesMember |
| 1427 |
Systems integration and consulting services |
Member |
|
|
gib:SystemsIntegrationAndConsultingServicesMember |
| 1428 |
Disclosure of products and services [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfProductsAndServicesLineItems |
| 1429 |
Revenue |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:Revenue |
| 1430 |
2485402 - Disclosure - Related party transactions (Details) |
Network |
* |
* |
http://www.cgi.com/role/RelatedPartyTransactionsDetails |
| 1431 |
Implied Table |
Table |
* |
* |
implied:Table |
| 1432 |
Related Party [Abstract] |
Abstract |
|
|
gib:RelatedPartyAbstract |
| 1433 |
Short-term employee benefits |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:KeyManagementPersonnelCompensationShorttermEmployeeBenefits |
| 1434 |
Share-based payments |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:KeyManagementPersonnelCompensationSharebasedPayment |
| 1435 |
2488402 - Disclosure - Commitments, contingencies and guarantees - Commitments Narrative (Details) |
Network |
* |
* |
http://www.cgi.com/role/CommitmentsContingenciesAndGuaranteesCommitmentsNarrativeDetails |
| 1436 |
Implied Table |
Table |
* |
* |
implied:Table |
| 1437 |
Other Provisions, Contingent Liabilities And Contingent Assets [Abstract] |
Abstract |
|
|
gib:OtherProvisionsContingentLiabilitiesAndContingentAssetsAbstract |
| 1438 |
Minimum lease payments payable under non-cancellable operating lease |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease |
| 1439 |
Lease expenditure charged to earnings |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:MinimumOperatingLeasePayments |
| 1440 |
Subleases income |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:SubleasePaymentsRecognisedAsExpense |
| 1441 |
Total future minimum subleases payments expected to be received under non-cancellable subleases |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:ExpectedFutureMinimumSubleasePaymentsReceivableUnderNoncancellableSubleasesClassifiedAsOperatingLease |
| 1442 |
Minimum payments due under long-term service and other agreements |
Concept (Monetary) |
As Of |
Credit |
gib:CommitmentsForLongTermServiceAndOtherAgreements |
| 1443 |
2488403 - Disclosure - Commitments, contingencies and guarantees - Disclosure of Future Minimum Lease Payments Under Non-Cancellable Operating Leases (Details) |
Network |
* |
* |
http://www.cgi.com/role/CommitmentsContingenciesAndGuaranteesDisclosureOfFutureMinimumLeasePaymentsUnderNonCancellableOperatingLeasesDetails |
| 1444 |
Disclosure of finance lease and operating lease by lessee [table] |
Table |
* |
* |
ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeTable |
| 1445 |
Maturity [axis] |
Axis |
|
|
ifrs-full:MaturityAxis |
| 1446 |
Aggregated time bands [member] |
Member |
|
|
ifrs-full:AggregatedTimeBandsMember |
| 1447 |
Less than one year |
Member |
|
|
ifrs-full:NotLaterThanOneYearMember |
| 1448 |
Between one and two years |
Member |
|
|
ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember |
| 1449 |
Between two and five years |
Member |
|
|
ifrs-full:LaterThanTwoYearsAndNotLaterThanFiveYearsMember |
| 1450 |
Beyond five years |
Member |
|
|
ifrs-full:LaterThanFiveYearsMember |
| 1451 |
Disclosure of finance lease and operating lease by lessee [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeLineItems |
| 1452 |
Future minimum lease payments under non-cancellable operating leases |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease |
| 1453 |
2488404 - Disclosure - Commitments, contingencies and guarantees - Disclosure of Minimum Payments Under Long-Term Service and Other Agreements (Details) |
Network |
* |
* |
http://www.cgi.com/role/CommitmentsContingenciesAndGuaranteesDisclosureOfMinimumPaymentsUnderLongTermServiceAndOtherAgreementsDetails |
| 1454 |
Disclosure of maturity analysis for non-derivative financial liabilities [table] |
Table |
* |
* |
ifrs-full:DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesTable |
| 1455 |
Maturity [axis] |
Axis |
|
|
ifrs-full:MaturityAxis |
| 1456 |
Aggregated time bands [member] |
Member |
|
|
ifrs-full:AggregatedTimeBandsMember |
| 1457 |
Less than one year |
Member |
|
|
ifrs-full:NotLaterThanOneYearMember |
| 1458 |
Between one and two years |
Member |
|
|
ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember |
| 1459 |
Between two and five years |
Member |
|
|
ifrs-full:LaterThanTwoYearsAndNotLaterThanFiveYearsMember |
| 1460 |
Disclosure of maturity analysis for non-derivative financial liabilities [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesLineItems |
| 1461 |
Minimum payments due under long-term service and other agreements |
Concept (Monetary) |
As Of |
Credit |
gib:CommitmentsForLongTermServiceAndOtherAgreements |
| 1462 |
2488405 - Disclosure - Commitments, contingencies and guarantees - Guarantees Narrative (Details) |
Network |
* |
* |
http://www.cgi.com/role/CommitmentsContingenciesAndGuaranteesGuaranteesNarrativeDetails |
| 1463 |
Disclosure of contingent liabilities [table] |
Table |
* |
* |
ifrs-full:DisclosureOfContingentLiabilitiesTable |
| 1464 |
Items of contingent liabilities [axis] |
Axis |
|
|
ifrs-full:ItemsOfContingentLiabilitiesAxis |
| 1465 |
Items of contingent liabilities [member] |
Member |
|
|
ifrs-full:ItemsOfContingentLiabilitiesMember |
| 1466 |
Costs and losses incurred as the result of breaches in contractual obligations, representations and warranties, intellectual property right infringement and litigation against counterparties, among others |
Member |
|
|
gib:CostsAndLossesIncurredAsTheResultOfBreachesInContractualObligationsRepresentationsAndWarrantiesIntellectualPropertyRightInfringementAndLitigationAgainstCounterpartiesMember |
| 1467 |
Liability for refusal or failure to perform under bid and performance bonds |
Member |
|
|
gib:LiabilityIncurredAsTheResultOfRefusalOrFailureToPerformUnderBidAndPerformanceBondsMember |
| 1468 |
Classes of contingent liabilities [axis] |
Axis |
|
|
ifrs-full:ClassesOfContingentLiabilitiesAxis |
| 1469 |
Contingent liabilities [member] |
Member |
|
|
ifrs-full:ContingentLiabilitiesMember |
| 1470 |
Guarantees |
Member |
|
|
ifrs-full:ContingentLiabilityForGuaranteesMember |
| 1471 |
Disclosure of contingent liabilities [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfContingentLiabilitiesLineItems |
| 1472 |
Maximum potential exposure if specified in agreement |
Concept (Monetary) |
As Of |
|
ifrs-full:EstimatedFinancialEffectOfContingentLiabilities |
| 1473 |
Letters of credit in addition to the letters of credit covered by the unsecured committed revolving credit facility |
Concept (Monetary) |
As Of |
Credit |
gib:LettersOfCreditOutstandingAmount1 |
| 1474 |
2491402 - Disclosure - Financial instruments - Financial Liabilities Included in Long-Term Debt (Details) |
Network |
* |
* |
http://www.cgi.com/role/FinancialInstrumentsFinancialLiabilitiesIncludedInLongTermDebtDetails |
| 1475 |
Disclosure of financial liabilities [table] |
Table |
* |
* |
ifrs-full:DisclosureOfFinancialLiabilitiesTable |
| 1476 |
Classes of financial liabilities [axis] |
Axis |
|
|
ifrs-full:ClassesOfFinancialLiabilitiesAxis |
| 1477 |
Financial liabilities, class [member] |
Member |
|
|
ifrs-full:FinancialLiabilitiesMember |
| 1478 |
Senior U.S. and euro unsecured notes |
Member |
|
|
gib:SeniorNotes1Member |
| 1479 |
Unsecured committed revolving credit facility |
Member |
|
|
gib:RevolvingCreditFacility1Member |
| 1480 |
Obligations other than finance leases |
Member |
|
|
gib:ObligationsOtherThanFinanceLeasesMember |
| 1481 |
Obligations under finance leases |
Member |
|
|
gib:FinanceLeaseObligationsMember |
| 1482 |
Other long-term debt |
Member |
|
|
gib:OtherLongTermBorrowingsMember |
| 1483 |
Categories of financial liabilities [axis] |
Axis |
|
|
ifrs-full:CategoriesOfFinancialLiabilitiesAxis |
| 1484 |
Financial liabilities, category [member] |
Member |
|
|
ifrs-full:FinancialLiabilitiesCategoryMember |
| 1485 |
Carrying amount |
Member |
|
|
ifrs-full:FinancialLiabilitiesAtAmortisedCostCategoryMember |
| 1486 |
Fair value |
Member |
|
|
ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember |
| 1487 |
Disclosure of financial liabilities [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfFinancialLiabilitiesLineItems |
| 1488 |
Financial liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:FinancialLiabilities |
| 1489 |
2491403 - Disclosure - Financial instruments - Fair Value of Financial Assets and Liabilities (Details) |
Network |
* |
* |
http://www.cgi.com/role/FinancialInstrumentsFairValueOfFinancialAssetsAndLiabilitiesDetails |
| 1490 |
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Table] |
Table |
* |
* |
gib:DisclosureOfFairValueMeasurementOfAssetsAndLiabilitiesTable |
| 1491 |
Measurement [axis] |
Axis |
|
|
ifrs-full:MeasurementAxis |
| 1492 |
Aggregated measurement [member] |
Member |
|
|
ifrs-full:AggregatedMeasurementMember |
| 1493 |
At fair value |
Member |
|
|
ifrs-full:AtFairValueMember |
| 1494 |
Classes of assets [axis] |
Axis |
|
|
ifrs-full:ClassesOfAssetsAxis |
| 1495 |
Assets [member] |
Member |
|
|
ifrs-full:ClassesOfAssetsMember |
| 1496 |
Cash and cash equivalents |
Member |
|
|
gib:CashAndCashEquivalents1Member |
| 1497 |
Deferred compensation plan assets (Note 10) |
Member |
|
|
gib:DeferredCompensationPlanAssetsMember |
| 1498 |
Current derivative financial instruments |
Member |
|
|
gib:CurrentDerivativesMember |
| 1499 |
Long-term derivative financial instruments (Note 10) |
Member |
|
|
gib:NoncurrentDerivativesMember |
| 1500 |
Long-term bonds included in funds held for clients (Note 5) |
Member |
|
|
gib:NoncurrentBondsFundsHeldForClientsMember |
| 1501 |
Long-term investments (Note 10) |
Member |
|
|
gib:NoncurrentInvestmentsMember |
| 1502 |
Categories of financial assets [axis] |
Axis |
|
|
ifrs-full:CategoriesOfFinancialAssetsAxis |
| 1503 |
Financial assets, category [member] |
Member |
|
|
ifrs-full:FinancialAssetsCategoryMember |
| 1504 |
Financial assets at fair value through earnings |
Member |
|
|
ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember |
| 1505 |
Derivative financial instruments designated as hedging instruments |
Member |
|
|
ifrs-full:FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeCategoryMember |
| 1506 |
Available-for-sale |
Member |
|
|
ifrs-full:FinancialAssetsAvailableforsaleCategoryMember |
| 1507 |
Classes of liabilities [axis] |
Axis |
|
|
ifrs-full:ClassesOfLiabilitiesAxis |
| 1508 |
Liabilities [member] |
Member |
|
|
ifrs-full:LiabilitiesMember |
| 1509 |
Current derivative financial instruments |
Member |
|
|
gib:CurrentDerivativesMember |
| 1510 |
Long-term derivative financial instruments (Note 10) |
Member |
|
|
gib:NoncurrentDerivativesMember |
| 1511 |
Levels of fair value hierarchy [axis] |
Axis |
|
|
ifrs-full:LevelsOfFairValueHierarchyAxis |
| 1512 |
All levels of fair value hierarchy [member] |
Member |
|
|
ifrs-full:AllLevelsOfFairValueHierarchyMember |
| 1513 |
Level 2 |
Member |
|
|
ifrs-full:Level2OfFairValueHierarchyMember |
| 1514 |
Level 1 |
Member |
|
|
ifrs-full:Level1OfFairValueHierarchyMember |
| 1515 |
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items] |
LineItems |
|
|
gib:DisclosureOfFairValueMeasurementOfAssetsAndLiabilitiesLineItems |
| 1516 |
Assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:Assets |
| 1517 |
Liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:Liabilities |
| 1518 |
2491404 - Disclosure - Financial instruments - Derivative Financial Instruments (Details) |
Network |
* |
* |
http://www.cgi.com/role/FinancialInstrumentsDerivativeFinancialInstrumentsDetails |
| 1519 |
Disclosure of detailed information about hedging instruments [table] |
Table |
* |
* |
ifrs-full:DisclosureOfDetailedInformationAboutHedgingInstrumentsTable |
| 1520 |
Types of hedges [axis] |
Axis |
|
|
ifrs-full:TypesOfHedgesAxis |
| 1521 |
Hedges [member] |
Member |
|
|
ifrs-full:TypesOfHedgesMember |
| 1522 |
Hedges of net investments in European operations |
Member |
|
|
ifrs-full:HedgesOfNetInvestmentInForeignOperationsMember |
| 1523 |
Cash flow hedges of future revenue |
Member |
|
|
gib:CashFlowHedgesOnFutureRevenueMember |
| 1524 |
Cash flow hedges on Senior U.S. unsecured notes |
Member |
|
|
gib:CashFlowHedgesOnSeniorU.S.UnsecuredNotesMember |
| 1525 |
Fair value hedges of Senior U.S. unsecured notes |
Member |
|
|
ifrs-full:FairValueHedgesMember |
| 1526 |
Hedging instruments [axis] |
Axis |
|
|
ifrs-full:HedgingInstrumentsAxis |
| 1527 |
Hedging instruments [member] |
Member |
|
|
ifrs-full:HedgingInstrumentsMember |
| 1528 |
Cross-currency swaps in euro |
Member |
|
|
gib:CrossCurrencySwapAgreementBetweenCanadianDollarToEuroMember |
| 1529 |
Cross-currency swaps in Swedish krona |
Member |
|
|
gib:CrossCurrencySwapAgreementBetweenCanadianDollarToSwedishKronaMember |
| 1530 |
Cross-currency swaps in British pound |
Member |
|
|
gib:CrossCurrencySwapAgreementBetweenCanadianDollarToBritishPoundMember |
| 1531 |
Foreign currency forward contracts between the U.S. dollar and the Indian rupee |
Member |
|
|
gib:ForeignCurrencyForwardContractBetweenUSDollarAndIndianRupeeMember |
| 1532 |
Foreign currency forward contracts between the Canadian dollar and the Indian rupee |
Member |
|
|
gib:ForeignCurrencyForwardContractBetweenCanadianDollarAndIndianRupeeMember |
| 1533 |
Foreign currency forward contract between euro and the Indian rupee |
Member |
|
|
gib:ForeignCurrencyForwardContractBetweenEuroAndIndianRupeeMember |
| 1534 |
Foreign currency forward contracts between the British pound and the Indian rupee |
Member |
|
|
gib:ForeignCurrencyForwardContractBetweenBritishPoundAndIndianRupeeMember |
| 1535 |
Foreign currency forward contracts between the euro and the British pound |
Member |
|
|
gib:ForeignCurrencyForwardContractBetweenEuroAndBritishPoundMember |
| 1536 |
Foreign currency forward contracts between the euro and the Moroccan dirham |
Member |
|
|
gib:ForeignCurrencyForwardContractBetweenEuroAndMoroccanDirhamMember |
| 1537 |
Other foreign currency forward contracts |
Member |
|
|
gib:OtherForeignCurrencyForwardContractsMember |
| 1538 |
USD 550,000 Cross-currency swaps to Canadian dollar |
Member |
|
|
gib:USD550000CrossCurrencySwapsToCADNetInvestmentHedgeInEuroMember |
| 1539 |
USD 45,000 Cross-currency swaps to Canadian dollar |
Member |
|
|
gib:USD45000CrossCurrencySwapsToCADNetInvestmentHedgeInSEKMember |
| 1540 |
USD 105,000 Cross-currency swaps to Canadian dollar |
Member |
|
|
gib:USD105000CrossCurrencySwapsToCADNetInvestmentHedgeInGBPMember |
| 1541 |
Interest rate swaps |
Member |
|
|
ifrs-full:InterestRateSwapContractMember |
| 1542 |
Disclosure of detailed information about hedging instruments [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfDetailedInformationAboutHedgingInstrumentsLineItems |
| 1543 |
Nominal amount of derivative |
Concept (Monetary) |
As Of |
|
invest:DerivativeNotionalAmount |
| 1544 |
Current assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentDerivativeFinancialAssets |
| 1545 |
Long-term assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:NoncurrentDerivativeFinancialAssets |
| 1546 |
Current liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentDerivativeFinancialLiabilities |
| 1547 |
Long-term liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:NoncurrentDerivativeFinancialLiabilities |
| 1548 |
2491405 - Disclosure - Financial instruments - Narrative (Details) |
Network |
* |
* |
http://www.cgi.com/role/FinancialInstrumentsNarrativeDetails |
| 1549 |
Disclosure of nature and extent of risks arising from financial instruments [table] |
Table |
* |
* |
ifrs-full:DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsTable |
| 1550 |
Types of risks [axis] |
Axis |
|
|
ifrs-full:TypesOfRisksAxis |
| 1551 |
Risks [member] |
Member |
|
|
ifrs-full:TypesOfRisksMember |
| 1552 |
Interest rate risk |
Member |
|
|
ifrs-full:InterestRateRiskMember |
| 1553 |
Currency risk |
Member |
|
|
ifrs-full:CurrencyRiskMember |
| 1554 |
Hedging instruments [axis] |
Axis |
|
|
ifrs-full:HedgingInstrumentsAxis |
| 1555 |
Hedging instruments [member] |
Member |
|
|
ifrs-full:HedgingInstrumentsMember |
| 1556 |
Cross-currency swap agreement between Canadian dollar to British pound |
Member |
|
|
gib:CrossCurrencySwapAgreementBetweenCanadianDollarToBritishPoundMember |
| 1557 |
Cross-currency swap agreement between Canadian dollar to Swedish krona |
Member |
|
|
gib:CrossCurrencySwapAgreementBetweenCanadianDollarToSwedishKronaMember |
| 1558 |
Settled cross-currency swap agreements |
Member |
|
|
gib:CrossCurrencySwapAgreementsSettledMember |
| 1559 |
Cross-currency swap agreement related to Senior U.S. unsecured notes |
Member |
|
|
gib:CrossCurrencySwapAgreementRelatedToSeniorUSUnsecuredNotesMember |
| 1560 |
Disclosure of nature and extent of risks arising from financial instruments [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsLineItems |
| 1561 |
Sensitivity analysis for types of market risk, reasonably possible change in risk variable, percent |
Concept (Percent) |
For Period |
|
gib:SensitivityAnalysisForTypesOfMarketRiskReasonablyPossibleChangeInRiskVariablePercent |
| 1562 |
Nominal amount of hedging instrument |
Concept (Monetary) |
As Of |
|
invest:DerivativeNotionalAmount |
| 1563 |
Settlement of derivative financial instruments |
Concept (Monetary) |
For Period |
Credit |
gib:PaymentsForSettlementOfDerivativeFinancialInstrumentsClassifiedAsFinancingActivities |
| 1564 |
2491406 - Disclosure - Financial instruments - Sensitivity Analysis (Details) |
Network |
* |
* |
http://www.cgi.com/role/FinancialInstrumentsSensitivityAnalysisDetails |
| 1565 |
Disclosure of nature and extent of risks arising from financial instruments [table] |
Table |
* |
* |
ifrs-full:DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsTable |
| 1566 |
Types of risks [axis] |
Axis |
|
|
ifrs-full:TypesOfRisksAxis |
| 1567 |
Risks [member] |
Member |
|
|
ifrs-full:TypesOfRisksMember |
| 1568 |
Currency risk |
Member |
|
|
ifrs-full:CurrencyRiskMember |
| 1569 |
Currency [Axis] |
Axis |
|
|
gib:Currency1Axis |
| 1570 |
All Currencies [Domain] |
Member |
|
|
gib:AllCurrencies1Domain |
| 1571 |
Swedish krona impact |
Member |
|
|
currency:SEK |
| 1572 |
U.S. dollar impact |
Member |
|
|
currency:USD |
| 1573 |
euro impact |
Member |
|
|
currency:EUR |
| 1574 |
British pound impact |
Member |
|
|
currency:GBP |
| 1575 |
Disclosure of nature and extent of risks arising from financial instruments [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsLineItems |
| 1576 |
(Decrease) increase in net earnings |
Concept (Monetary) |
For Period |
Credit |
gib:SensitivityAnalysisForTypesOfMarketRiskReasonablyPossibleChangeInRiskVariableImpactOnEarnings |
| 1577 |
Decrease in other comprehensive income |
Concept (Monetary) |
For Period |
Credit |
gib:SensitivityAnalysisForTypesOfMarketRiskReasonablyPossibleChangeInRiskVariableImpactOnOtherComprehensiveIncome |
| 1578 |
2491407 - Disclosure - Financial instruments - Contractual Maturities (Details) |
Network |
* |
* |
http://www.cgi.com/role/FinancialInstrumentsContractualMaturitiesDetails |
| 1579 |
Disclosure Of Maturity Analysis For Derivative And Non-Derivative Financial Liabilities [Table] |
Table |
* |
* |
gib:DisclosureOfMaturityAnalysisForDerivativeAndNonDerivativeFinancialLiabilitiesTable |
| 1580 |
Maturity [axis] |
Axis |
|
|
ifrs-full:MaturityAxis |
| 1581 |
Aggregated time bands [member] |
Member |
|
|
ifrs-full:AggregatedTimeBandsMember |
| 1582 |
Less than one year |
Member |
|
|
ifrs-full:NotLaterThanOneYearMember |
| 1583 |
Between one and two years |
Member |
|
|
ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember |
| 1584 |
Between two and five years |
Member |
|
|
ifrs-full:LaterThanTwoYearsAndNotLaterThanFiveYearsMember |
| 1585 |
Beyond five years |
Member |
|
|
ifrs-full:LaterThanFiveYearsMember |
| 1586 |
Classes of financial liabilities [axis] |
Axis |
|
|
ifrs-full:ClassesOfFinancialLiabilitiesAxis |
| 1587 |
Financial liabilities, class [member] |
Member |
|
|
ifrs-full:FinancialLiabilitiesMember |
| 1588 |
Senior U.S. and euro unsecured notes |
Member |
|
|
gib:SeniorNotes1Member |
| 1589 |
Unsecured committed revolving credit facility |
Member |
|
|
gib:RevolvingCreditFacility1Member |
| 1590 |
Obligations other than finance leases |
Member |
|
|
gib:ObligationsOtherThanFinanceLeasesMember |
| 1591 |
Obligations under finance leases |
Member |
|
|
gib:FinanceLeaseObligationsMember |
| 1592 |
Other long-term debt |
Member |
|
|
gib:OtherLongTermBorrowingsMember |
| 1593 |
Cash flow hedges of future revenue |
Member |
|
|
ifrs-full:FuturesContractMember |
| 1594 |
Cross-currency swaps |
Member |
|
|
ifrs-full:CurrencySwapContractMember |
| 1595 |
Interest rate swaps |
Member |
|
|
ifrs-full:InterestRateSwapContractMember |
| 1596 |
Disclosure Of Maturity Analysis For Derivative And Non-Derivative Financial Liabilities [Line Items] |
LineItems |
|
|
gib:DisclosureOfMaturityAnalysisForDerivativeAndNonDerivativeFinancialLiabilitiesLineItems |
| 1597 |
Accounts payable and accrued liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:TradeAndOtherCurrentPayables |
| 1598 |
Accrued compensation |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:ShorttermEmployeeBenefitsAccruals |
| 1599 |
Borrowings |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:Borrowings |
| 1600 |
Clients’ funds obligations |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:LiabilitiesToWhichSignificantRestrictionsApply |
| 1601 |
Derivative financial liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:DerivativeFinancialLiabilities |
| 1602 |
Financial liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:FinancialLiabilities |
| 1603 |
Accounts payable and accrued liabilities, contractual cash flows |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:TradeAndOtherPayablesUndiscountedCashFlows |
| 1604 |
Accrued compensation, contractual cash flows |
Concept (Monetary) |
As Of |
Credit |
gib:ShorttermEmployeeBenefitsAccrualsUndiscountedCashFlows |
| 1605 |
Borrowings, contractual cash flows |
Concept (Monetary) |
As Of |
Credit |
gib:BorrowingsAndLeaseObligationsUndiscountedCashFlows |
| 1606 |
Clients' funds obligations, contractual cash flows |
Concept (Monetary) |
As Of |
Credit |
gib:LiabilitiesToWhichSignificantRestrictionsApplyUndiscountedCashFlows |
| 1607 |
Derivative financial liabilities, contractual cash flows |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:DerivativeFinancialLiabilitiesUndiscountedCashFlows |
| 1608 |
Derivative financial assets, contractual cash flows |
Concept (Monetary) |
As Of |
Debit |
gib:DerivativeFinancialAssetsUndiscountedCashFlows |
| 1609 |
Financial liabilities, contractual cash flows |
Concept (Monetary) |
As Of |
Credit |
gib:DerivativeAndNonDerivativeFinancialLiabilitiesUndiscountedCashFlows |
| 1610 |
2491408 - Disclosure - Financial instruments - Credit Risk (Details) |
Network |
* |
* |
http://www.cgi.com/role/FinancialInstrumentsCreditRiskDetails |
| 1611 |
Disclosure of financial assets that are either past due or impaired [table] |
Table |
* |
* |
ifrs-full:DisclosureOfFinancialAssetsThatAreEitherPastDueOrImpairedTable |
| 1612 |
Classes of financial assets [axis] |
Axis |
|
|
ifrs-full:ClassesOfFinancialAssetsAxis |
| 1613 |
Financial assets, class [member] |
Member |
|
|
ifrs-full:FinancialAssetsMember |
| 1614 |
Trade accounts receivable |
Member |
|
|
ifrs-full:TradeReceivablesMember |
| 1615 |
Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] |
Axis |
|
|
ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis |
| 1616 |
Net carrying amount |
Member |
|
|
ifrs-full:CarryingAmountMember |
| 1617 |
Cost |
Member |
|
|
ifrs-full:GrossCarryingAmountMember |
| 1618 |
Allowance for doubtful accounts |
Member |
|
|
gib:AllowanceForDoubtfulAccounts1Member |
| 1619 |
Past due status [axis] |
Axis |
|
|
ifrs-full:PastDueStatusAxis |
| 1620 |
Past due status [member] |
Member |
|
|
ifrs-full:PastDueStatusMember |
| 1621 |
Not past due |
Member |
|
|
ifrs-full:CurrentMember |
| 1622 |
Past due 1-30 days |
Member |
|
|
ifrs-full:NotLaterThanOneMonthMember |
| 1623 |
Past due 31-60 days |
Member |
|
|
ifrs-full:LaterThanOneMonthAndNotLaterThanTwoMonthsMember |
| 1624 |
Past due 61-90 days |
Member |
|
|
ifrs-full:LaterThanTwoMonthsAndNotLaterThanThreeMonthsMember |
| 1625 |
Past due more than 90 days |
Member |
|
|
ifrs-full:LaterThanThreeMonthsMember |
| 1626 |
Disclosure of financial assets that are either past due or impaired [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfFinancialAssetsThatAreEitherPastDueOrImpairedLineItems |
| 1627 |
Financial assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:FinancialAssets |
| 1628 |
2494401 - Disclosure - Capital risk management (Details) |
Network |
* |
* |
http://www.cgi.com/role/CapitalRiskManagementDetails |
| 1629 |
Implied Table |
Table |
* |
* |
implied:Table |
| 1630 |
Corporate Information And Statement Of IFRS Compliance [Abstract] |
Abstract |
|
|
gib:CorporateInformationAndStatementOfIFRSComplianceAbstract |
| 1631 |
Total managed capital |
Concept (Monetary) |
As Of |
Debit |
gib:ManagedCapital |