XML 161 R119.htm IDEA: XBRL DOCUMENT
v3.23.3

Cost optimization program (Details) - CAD ($) | 12 Months Ended
--- | ---
Sep. 30, 2023 | Sep. 30, 2022
Disclosure of attribution of expenses by nature to their function [line items] |  |
Cost optimization program | $ 8,964,000 | $ 0
Termination of employment costs | 23,226,000 | 10,948,000
Cost optimization program |  |
Disclosure of attribution of expenses by nature to their function [line items] |  |
Termination of employment costs | 2,613,000 |
Cost of vacating leased premises | 6,351,000 |
Impairment of right-of-use assets | 2,232,000 | 0
Onerous contracts expense | 2,181,000 |
Impairment loss recognised in profit or loss, property, plant and equipment | $ 1,938,000 | $ 0

X
- Definition Cost Of Vacating Leased Premises + References No definition available. + Details
Name: | gib_CostOfVacatingLeasedPremises
Namespace Prefix: | gib_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Cost Optimization Program + References No definition available. + Details
Name: | gib_CostOptimizationProgram
Namespace Prefix: | gib_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Impairment Loss Recognised In Profit Or Loss, Right-Of-Use Assets + References No definition available. + Details
Name: | gib_ImpairmentLossRecognisedInProfitOrLossRightOfUseAssets
Namespace Prefix: | gib_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Onerous Contracts Expense + References No definition available. + Details
Name: | gib_OnerousContractsExpense
Namespace Prefix: | gib_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. + References No definition available. + Details
Name: | ifrs-full_DisclosureOfAttributionOfExpensesByNatureToTheirFunctionLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of impairment loss recognised in profit or loss for property, plant and equipment. [Refer: Impairment loss recognised in profit or loss; Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2023-01-01 -Paragraph 73 -Subparagraph e -Clause v -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2023-en-r&anchor=para_73_e_v&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 98 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_98_a&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of expense in relation to termination benefits. Termination benefits are employee benefits provided in exchange for the termination of an employee's employment as a result of either: (a) an entity's decision to terminate an employee's employment before the normal retirement date; or (b) an employee's decision to accept an offer of benefits in exchange for the termination of employment. [Refer: Employee benefits expense] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2023-01-01 -Paragraph 171 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2023-en-r&anchor=para_171&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_TerminationBenefitsExpense
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | ifrs-full_AttributionOfExpensesByNatureToTheirFunctionAxis=gib_CostOptimizationProgramMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |