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[Member] Presagis Europe (S.A.) [Member] Employee Stock Purchase Plan (ESPP) Employee Stock Purchase Plan (ESPP) [Member] Employee Stock Purchase Plan (ESPP) [Member] Profit or loss [abstract] Document Fiscal Year Focus Document Fiscal Year Focus Financial instruments Description of accounting policy for financial instruments [text block] Income Tax [Abstract] Income Tax [Abstract] Income Tax [Abstract] Entity Current Reporting Status Entity Current Reporting Status Other comprehensive (loss) income Other comprehensive (loss) income Other comprehensive (loss) income Other comprehensive income Accounts payable trade Current trade payables Useful lives, right of use assets Useful Lives, Right Of Use Assets Useful Lives, Right Of Use Assets All levels of fair value hierarchy [member] All levels of fair value hierarchy [member] Employee benefits obligations Employee Benefits Obligation Employee Benefits Obligation Investment in finance leases Investment In Finance Leases [Member] Investment In Finance Leases [Member] Other assets, amount contributed to fair value of plan assets Other assets, amount contributed to fair value of plan assets CAE SimuFlite Inc. CAE SimuFlite Inc. [Member] CAE SimuFlite Inc. [Member] Return on plan assets, excluding amounts included in interest income Return on plan assets excluding interest income or expense, net defined benefit liability (asset) Defence and Security Defence and Security [Member] Defence and Security Products Products [Member] Products [Member] Borrowings by name [axis] Borrowings by name [axis] Finance income: Finance income [Abstract] Finance income [Abstract] Investment in equity accounted investees Investment In Equity Accounted Investee Recognised As Of Acquisition Date Investment In Equity Accounted Investee Recognised As Of Acquisition Date SHARE CAPITAL, EARNINGS PER SHARE AND DIVIDENDS Disclosure of share capital, reserves and other equity interest [text block] Products and services information Disclosure of products and services [text block] Foreign currency strengthening change Sensitivity Analysis To Foreign Currency Rate Change, Based On Strengthening Of Foreign Currency Sensitivity Analysis To Foreign Currency Rate Change, Based On Strengthening Of Foreign Currency Statement of financial position [abstract] Statement of financial position [abstract] CAE Healthcare, Inc. CAE Healthcare, Inc. [Member] CAE Healthcare, Inc. [Member] Classes of property, plant and equipment [axis] Classes of property, plant and equipment [axis] Share-based payments liabilities (Note 26) Liabilities From Share-based Compensation Obligation Liabilities From Share-based Compensation Obligation Asia Asia [Member] Maturity [axis] Maturity [axis] USD $50 Million Term Loan Maturing 2022 USD $50 Million Term Loan Maturing 2022 [Member] USD $50 Million Term Loan Maturing 2022 Allocation of recognized period costs, capitalized amount Employee Service Share-based Compensation, Allocation of Recognized Period Costs, Capitalized Amount1 Employee Service Share-based Compensation, Allocation of Recognized Period Costs, Capitalized Amount1 Products and services [axis] Products and services [axis] BUSINESS COMBINATIONS L3HARRIS' MILITARY TRAINING BUSINESS Disclosure of business combinations [text block] Deferred income taxes Adjustments for deferred tax expense Entity Address, City or Town Entity Address, City or Town Goodwill Goodwill Goodwill [member] Foreign currency exchange difference Unrealised foreign exchange gains (losses) [member] 2027 - 2040 Tax year 2027 To 2040 [Member] Tax year 2026 To 2039 [Member] Fair value of acquired receivables Fair value of acquired receivables Accounts receivable, amount sold to financial institution, fees Accounts Receivable, Amount Sold To Financial Institution, Fees Accounts Receivable, Amount Sold To Financial Institution, Fees Government royalty repayments Disclosure Of Government Royalties Repayments [Policy Text Block] Disclosure Of Government Royalties Repayments [Policy Text Block] Non-cash changes Noncash, Financing Activities Noncash, Financing Activities Methods of generation [member] Methods of generation [member] Classes of liabilities [axis] Classes of liabilities [axis] R&D Obligations Research And Development Obligations [Member] Research And Development Obligations [Member] Other Other inflows (outflows) of cash, classified as financing activities Sensitivity analysis for types of market risk Sensitivity analysis for types of market risk [text block] Business Contact Business Contact [Member] Entity's total for subsidiaries [member] Entity's total for subsidiaries [member] Accumulated other comprehensive income Accumulated other comprehensive income Post-employment benefits – defined benefit plans Post-employment Benefit Cost, Defined Benefit Plans Post-employment Benefit Cost, Defined Benefit Plans Other Miscellaneous, Other Gains And (Losses) Miscellaneous, Other Gains And (Losses) Units outstanding, beginning of year (in shares) Units outstanding, end of year (in shares) Number of other equity instruments outstanding in share-based payment arrangement Components of equity [axis] Components of equity [axis] Weighted average number of common shares outstanding for diluted earnings per share calculation, shares Adjusted weighted average number of ordinary shares outstanding Customer relationships Customer-related intangible assets [member] Impairment loss on non-financial assets, COVID-19 Impairment of non-financial assets Impairment Loss On Non-Financial Assets, COVID-19 Impairment Loss On Non-Financial Assets, COVID-19 CAE Aviation Training B.V. CAE Aviation Training B.V. [Member] CAE Aviation Training B.V. [Member] Foreign currency translation Reserve of exchange differences on translation [member] Selling, general and administrative expenses Selling, General And Administrative Expenses1 [Member] Selling, General And Administrative Expenses [Member] Disclosure of risk management strategy related to hedge accounting [table] Disclosure of risk management strategy related to hedge accounting [table] Net defined benefit liability (asset) [axis] Net defined benefit liability (asset) [axis] Long-term debt Long-term borrowings [member] Gender [Axis] Gender [Axis] Gender [Axis] (Loss) earnings before income taxes Accounting profit HATSOFF Helicopter Training Private Limited HATSOFF Helicopter Training Private Limited [Member] HATSOFF Helicopter Training Private Limited [Member] Expected warranty claims period Expected Warranty Claims Period Expected Warranty Claims Period Long-term debt, including current portion Borrowings recognised as of acquisition date CAE Entrenamiento de Vuelo Chile Limitada CAE Entrenamiento de Vuelo Chile Limitada [Member] CAE Entrenamiento de Vuelo Chile Limitada Document Fiscal Period Focus Document Fiscal Period Focus Disclosure of foreign currency risks Disclosure of nature and extent of risks arising from financial instruments [text block] Employee Benefits [Abstract] Employee Benefits [Abstract] Employee Benefits [Abstract] Other costs Restructuring, Integration And Acquisition Costs, Other Restructuring, Integration And Acquisition Costs, Other Disclosure of net contract assets (liabilities) Disclosure of assets recognised from costs to obtain or fulfil contracts with customers [text block] Cost of inventories recognised as expense during period Cost of inventories recognised as expense during period Prices specified in forward agreements to purchase financial assets for cash Prices specified in forward agreements to purchase financial assets for cash Business combinations [axis] Business combinations [axis] Research and development (R&D) Development costs Description of accounting policy for research and development expense [text block] Non-controlling interests Non-controlling interests [member] Operating activities Cash flows from (used in) operating activities [abstract] Cash consideration Cash transferred Schedule of other noncurrent liabilities Other Noncurrent Liabilities1 [Table Text Block] Other Noncurrent Liabilities1 [Table Text Block] Accounts payable and accrued liabilities Description of accounting policy for trade and other payables [text block] Other Other, Noncash, Financing Activities Other, Noncash, Financing Activities Exercise of stock options Increase (decrease) through exercise of options, equity Reconciliation of changes in intangible assets and goodwill [abstract] Reconciliation of changes in intangible assets and goodwill [abstract] Ownership interest in joint venture Proportion of ownership interest in joint venture U.S. dollar, fixed rate - 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Ltd. JAL CAE Flight Training Co. Ltd. [Member] JAL CAE Flight Training Co. Ltd. [Member] Disclosure of share-based payments arrangements [Abstract] Disclosure of share-based payments arrangements [Abstract] Disclosure of share-based payments arrangements [Abstract] Types of risks [axis] Types of risks [axis] Restructuring, integration and acquisition costs Total restructuring, integration and acquisition costs Restructuring, Integration And Acquisition Costs Restructuring, Integration And Acquisition Costs Government participation, Royalty obligations, R&D obligations, and Investment tax credits Description Of Government Participation [Policy Text Block] Description Of Government Participation [Policy Text Block] Items that may be reclassified to net (loss) income Other comprehensive income that will be reclassified to profit or loss, net of tax Equity securities - domestic Equity Securities - Domestic [Member] Equity Securities - Domestic [Member] TRU Flight Training Iceland ehf TRU Flight Training Iceland ehf [Member] TRU Flight Training Iceland ehf Employer contributions Contributions to plan by employer, net defined benefit liability (asset) Disclosure of transactions between related parties Disclosure of transactions between related parties [text block] Classes of other provisions [axis] Classes of other provisions [axis] Integration and acquisition costs Integration And Acquisition Costs Integration And Acquisition Costs Expired (in shares) Number of share options expired in share-based payment arrangement Geographical areas [member] Geographical areas [member] Expense from equity-settled share-based payment transactions in which goods or services received did not qualify for recognition as assets Expense from equity-settled share-based payment transactions in which goods or services received did not qualify for recognition as assets Canadian dollar, variable rate Term Loans, Canadian Dollar, Variable Rate [Member] Term Loans, Canadian Dollar, Variable Rate [Member] Provisions, start Provisions, end Other provisions Equity securities - foreign Equity Securities - Foreign [Member] Equity Securities - Foreign [Member] Leonardo CAE Advanced Jet Training S.r.l. Leonardo CAE Advanced Jet Training S.r.l. [Member] Leonardo CAE Advanced Jet Training S.r.l. Deferred financing costs Description of accounting policy for finance costs [text block] Total net debt plus equity Non-Current Borrowings, Less Cash and Cash Equivalents Plus Equity Non-Current Borrowings, Less Cash and Cash Equivalents Plus Equity Disclosure of temporary difference, unused tax losses and unused tax credits Disclosure of temporary difference, unused tax losses and unused tax credits [text block] Impairment of intangible assets Impairment loss recognised in profit or loss, intangible assets other than goodwill Disclosure of reconciliation of changes in intangible assets and goodwill [table] Disclosure of reconciliation of changes in intangible assets and goodwill [table] $20.24 to $22.26 Exercise Price Range Two [Member] Exercise Price Range Two [Member] Derivative financial liabilities Non-current derivative financial liabilities Change in income tax rates Deferred tax expense (income) relating to tax rate changes or imposition of new taxes ERP and other software ERP and Other Software [Member] ERP and Other Software [Member] Intangible assets other than goodwill [member] Intangible assets other than goodwill [member] Disclosure of accounts receivable Disclosure Of Trade And Other Current Receivables [Table Text Block] Disclosure Of Trade And Other Current Receivables [Table Text Block] Changes in non-cash working capital Working Capital Increase (Decrease) in Working Capital, Excluding Cash Capital Risk Management [Abstract] Capital Risk Management [Abstract] Capital Risk Management [Abstract] Equity [member] Equity [member] Entity Address, Address Line One Entity Address, Address Line One Other Miscellaneous other provisions [member] Entity Emerging Growth Company Entity Emerging Growth Company Other assets Other assets [member] Line of credit facility, maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity1 Line of Credit Facility, Maximum Borrowing Capacity1 Income taxes at Canadian statutory rates Tax expense (income) at applicable tax rate Parc Aviation Engineering Services Ltd. Parc Aviation Engineering Services Ltd [Member] Parc Aviation Engineering Services Ltd [Member] Reconciliation of changes in other provisions [abstract] Reconciliation of changes in other provisions [abstract] ERP and other software Computer software [member] Economic assumptions Actuarial gains (losses) arising from changes in financial assumptions, net defined benefit liability (asset) Current service cost Current service cost, net defined benefit liability (asset) Repayment of lease liabilities Payments of lease liabilities, classified as financing activities CAE Engineering Korlatolt Felelossegu Tarsasag CAE Engineering Korlatolt Felelossegu Tarsasag [Member] CAE Engineering Korlatolt Felelossegu Tarsasag [Member] Finance Expense Finance Expense [Member] Finance Expense Dividends Dividends Declared Dividends Declared Statement of changes in equity [line items] Statement of changes in equity [line items] Annual Information Form Annual Information Form Share-based payments expense Adjustments for share-based payments Accounts payable and accrued liabilities Adjustments For Decrease (Increase) To Accounts Payable And Accrued Liabilities Adjustments For Decrease (Increase) To Accounts Payable And Accrued Liabilities CAE (US) Inc. CAE (US) Inc. [Member] CAE (US) Inc. [Member] Maximum Maximum [Member] OTHER NON-CURRENT ASSETS Disclosure of other assets [text block] Dividends (in CAD per share) Common Stock, Dividends Declared, Per Share Common Stock, Dividends Declared, Per Share Foreign currency exchange differences Increase (decrease) through net exchange differences, other provisions Contact Personnel Name Contact Personnel Name Accounts receivable Current trade receivables Number of registered funded defined benefit pension plans for designated executives Number Of Registered Funded Defined Benefit Pension Plans For Designated Executives Number Of Registered Funded Defined Benefit Pension Plans For Designated Executives Risk exposure associated with instruments sharing characteristic Risk exposure associated with instruments sharing characteristic Income tax recovery Subscription Receipts, Accrued Commitment Fee Recorded As A Reduction Of Equity, Income Tax Recovery Subscription Receipts, Accrued Commitment Fee Recorded As A Reduction Of Equity, Income Tax Recovery Net cash (used in) provided by financing activities Cash flows from (used in) financing activities Issue of equity, number of shares issued Issue Of Equity, Number Of Shares Issued Issue Of Equity, Number Of Shares Issued Non-controlling interests Comprehensive income, attributable to non-controlling interests Hedges [member] Hedges [member] Letters of credit and guarantees, net Letters of credit and guarantees, net Letters Of Credit And Guarantees, Net Letters Of Credit And Guarantees, Net Income taxes Adjustments For Decrease (increase) In Income Taxes Recoverable Adjustments For Decrease (increase) In Income Taxes Recoverable Revenue From Contracts With Customers1 [Abstract] Revenue From Contracts With Customers1 [Abstract] Revenue From Contracts With Customers1 [Abstract] Expired Weighted average exercise price of share options expired in share-based payment arrangement Total undiscounted lease payments receivable Undiscounted operating lease payments to be received CAE Vietnam Limited Liability Company CAE Vietnam Limited Liability Company [Member] CAE Vietnam Limited Liability Company Disclosure of fair value measurement of assets [table] Disclosure of fair value measurement of assets [table] Goodwill recognised as of acquisition date Goodwill, start Goodwill, end Goodwill Trading Symbol Trading Symbol Singapore CAE Flight Training Pte Ltd. Singapore CAE Flight Training Pte Ltd. [Member] Singapore CAE Flight Training Pte Ltd. 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CAE USA Mission Solutions Inc. [Member] CAE USA Mission Solutions Inc. [Member] Ranges [member] Ranges [member] Foreign currency exchange differences Increase (decrease) through net exchange differences, deferred tax liability (asset) Disclosure of interests in subsidiaries Disclosure of interests in subsidiaries [text block] Share-based Payment Arrangements [Abstract] Share-based Payment Arrangements [Abstract] Share-based Payment Arrangements [Abstract] Contractual Obligation, Fiscal Year Maturity Schedule Contractual Obligation, Fiscal Year Maturity Schedule1 [Table Text Block] Contractual Obligation, Fiscal Year Maturity Schedule1 [Table Text Block] PROPERTY, PLANT AND EQUIPMENT Disclosure of property, plant and equipment [text block] Bottom of range Bottom of range [member] Disclosure of analysis of other comprehensive income by item [abstract] Disclosure of analysis of other comprehensive income by item [abstract] LEASES Disclosure of leases [text block] Schedule of changes in allowance for doubtful accounts Disclosure Of Allowance Account For Trade Receivables [Table Text Block] Disclosure Of Allowance Account For Trade Receivables Dividends received from equity accounted investees Dividends received from investments accounted for using equity method, classified as investing activities Entity Address, State or Province Entity Address, State or Province Gross carrying amount Cost Gross carrying amount [member] Useful lives, intangible assets other than goodwill Useful Lives, Intangible Assets Other Than Goodwill Useful Lives, Intangible Assets Other Than Goodwill Aircraft engines Aircraft Engines [Member] Aircraft Engines [Member] Contributed surplus Share premium [member] Tax benefit not previously recognized used to reduce the deferred tax expense Tax benefit arising from previously unrecognised tax loss, tax credit or temporary difference of prior period used to reduce deferred tax expense CAE Military Aviation Training Inc. CAE Military Aviation Training Inc. [Member] CAE Military Aviation Training Inc. [Member] Currency Pairing [Axis] Currency Pairing [Axis] Currency Pairing [Axis] Other non-current assets Non-current assets recognised as of acquisition date Disclosure of detailed Information about government participation Disclosure Of Detailed Information About Government Grants [Table Text Block] Disclosure Of Detailed Information About Government Grants [Table Text Block] Disclosure of how entity manages liquidity risk Disclosure of how entity manages liquidity risk [text block] Terms of Indemnifications Terms Of Indemnifications Terms Of Indemnifications Plan assets Plan assets [member] Other gains and losses, Purchases of personal protective equipment Other gains and losses, Purchases of personal protective equipment Other gains and losses, Purchases of personal protective equipment Cost of sales Cost of sales Granted Common share price Weighted average exercise price of share options granted in share-based payment arrangement Level 3 Level 3 of fair value hierarchy [member] Income tax (recovery) expense Income tax (recovery) expense Tax expense (income) Plan assets, at fair value Plan assets, at fair value Foreign currency rate change, based on weakening of foreign currency Sensitivity Analysis To Foreign Currency Rate Change, Based On Weakening Of Foreign Currency Sensitivity Analysis To Foreign Currency Rate Change, Based On Weakening Of Foreign Currency CAE El Salvador Flight Training S.A. de C.V. CAE El Salvador Flight Training S.A. de C.V. [Member] CAE El Salvador Flight Training S.A. de C.V. [Member] Advance payment Advance Payments Advance Payments CAE Aviation Training Peru S.A. CAE Aviation Training Peru S.A. [Member] CAE Aviation Training Peru S.A. [Member] Foreign currency exchange differences Increase (decrease) through net exchange differences, property, plant and equipment Analysis of Non-Cash Working Capital Analysis of Non-Cash Working Capital [Table Text Block] Analysis of Non-Cash Working Capital [Table Text Block] Between 2 and 3 years Later than two years and not later than three years [member] Other Other tax effects for reconciliation between accounting profit and tax expense (income) Proceeds from issue of ordinary shares Proceeds from issue of ordinary shares Currency Pairing [Domain] Currency Pairing [Domain] [Domain] for Currency Pairing [Axis] Disclosure of Impairment of Assets [Abstract] Disclosure of Impairment of Assets [Abstract] Disclosure Of Impairment Of Assets Gainsrecognised in profit or loss, fair value measurement, liabilities Gains (losses) recognised in profit or loss including exchange differences, fair value measurement, liabilities Investment in equity accounted investees Investments accounted for using equity method Disclosure of terms and conditions of share-based payment arrangement [line items] Disclosure of terms and conditions of share-based payment arrangement [line items] Notional amount Notional amount Restructuring, integration and acquisition costs Restructuring, Integration And Acquisition Costs, Policy [Policy Text Block] Restructuring, Integration And Acquisition Costs, Policy Forfeited Weighted average exercise price of share options forfeited in share-based payment arrangement Exercisable options, period Exercisable Options, Period Exercisable Options, Period CAE Training Norway AS CAE Training Norway AS [Member] CAE Training Norway AS [Member] Contract liabilities - non-current Non-current contract liabilities CAE Center Amsterdam B.V. CAE Center Amsterdam B.V. [Member] CAE Center Amsterdam B.V. 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CAE Flight Training Center Mexico, S.A. de C.V. [Member] CAE Flight Training Center Mexico, S.A. de C.V. [Member] Disclosure of additional information about defined benefit plans Disclosure of additional information about defined benefit plans [text block] Top of range Top of range [member] Share Capital, Reserves And Other Equity Interest [Abstract] Share Capital, Reserves And Other Equity Interest [Abstract] Share Capital, Reserves And Other Equity Interest Unrecognized tax benefits and tax benefits not previously recognized Unrecognized tax benefits and tax benefits not previously recognized Unrecognized tax benefits and tax benefits not previously recognized Statement of IFRS compliance Statement of IFRS compliance [text block] Disclosure of reconciliation of liabilities arising from financing activities [table] Disclosure of reconciliation of liabilities arising from financing activities [table] Shares vested and outstanding, granted under previous plans (in shares) Number Of Other Equity Instruments Vested And Outstanding In Share-Based Payment Arrangement, Granted Under Previous Plans Number Of Other Equity Instruments Vested And Outstanding In Share-Based Payment Arrangement, Granted Under Previous Plans CAE New Zealand Pty Limited CAE New Zealand Pty Ltd. [Member] CAE New Zealand Pty Ltd. [Member] Number of subscription receipts issued Number Of Subscription Receipts Issued In The Period Number Of Subscription Receipts Issued In The Period Between 3 and 5 years Later than three years and not later than five years [member] Ranges of exercise prices for outstanding share options [axis] Ranges of exercise prices for outstanding share options [axis] Revenue that was included in contract liability balance Revenue that was included in contract liability balance at beginning of period Long-term debt (other than lease liabilities) Interest expense on borrowings Exercised Weighted average exercise price of share options exercised in share-based payment arrangement Royalty obligations Royalty Obligation Royalty Obligation Deductible temporary differences for which no deferred tax asset is recognised Deductible temporary differences for which no deferred tax asset is recognised Entity Central Index Key Entity Central Index Key Unused tax losses for which deferred tax asset recognised Unused Tax Losses For Which Deferred Tax Asset Recognised Unused Tax Losses For Which Deferred Tax Asset Recognised Presagis Canada Inc. Presagis Canada Inc. [Member] Presagis Canada Inc. [Member] Current and deferred income tax Income taxes Description of accounting policy for income tax [text block] Segment consolidation items [axis] Segment consolidation items [axis] Other Issuance Related Costs, Recorded As A Deduction From Equity, Income Tax Recovery Other Issuance Related Costs, Recorded As A Deduction From Equity, Income Tax Recovery Other Issuance Related Costs, Recorded As A Deduction From Equity, Income Tax Recovery Parc Interim Ltd. Parc Interim Limited [Member] Parc Interim Limited [Member] Exercise price Exercise price, share options granted Restructuring provision Restructuring provision [member] Disclosure of transactions recognised separately from acquisition of assets and assumption of liabilities in business combination [line items] Disclosure of transactions recognised separately from acquisition of assets and assumption of liabilities in business combination [line items] 61-90 days Later than two months and not later than three months [member] GBP/CDN GBP/CDN [Member] GBP/CDN [Member] Assumptions for defined benefit plans Disclosure of defined benefit plans [text block] U.S. dollar, variable rate Term Loans, US Dollar, Variable Rate [Member] Term Loans, US Dollar, Variable Rate [Member] Total liabilities and equity Equity and liabilities USD/CDN USD/CDN [Member] USD/CDN [Member] Cash and cash equivalents Description of accounting policy for determining components of cash and cash equivalents [text block] Contract liabilities Contract liabilities - current Current contract liabilities Provisions Description of accounting policy for provisions [text block] Common shares Entity Common Stock, Shares Outstanding Statement of changes in equity [table] Statement of changes in equity [table] Disclosure of letters of credit and guarantees Disclosure Of Letters Of Credit And Guarantees [Table Text Block] Disclosure Of Letters Of Credit And Guarantees [Table Text Block] CAE India Private Limited CAE India Private Limited [Member] CAE India Private Limited [Member] Business combinations, net of cash acquired Cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities Foreign currency exchange differences Effect of Exchange Rate, Noncash, Financing Activities Effect of Exchange Rate, Noncash, Financing Activities Non-controlling interests Profit (loss), attributable to non-controlling interests Risk-free interest rate Risk free interest rate, share options granted Level 2 Level 2 of fair value hierarchy [member] Disclosure of sensitivity analysis for actuarial assumptions [table] Disclosure of sensitivity analysis for actuarial assumptions [table] CAE Flight Training (India) Private Limited CAE Flight Training (India) Private Limited [Member] CAE Flight Training (India) Private Limited [Member] Scenario [Axis] Scenario [Axis] Employee benefits Description of accounting policy for employee benefits [text block] Title of 12(b) Security Title of 12(b) Security Restricted cash Description of accounting policy for restricted cash and cash equivalents [text block] Temporary differences associated with investments in subsidiaries, branches and associates and interests in joint arrangements for which deferred tax liabilities have not been recognised Temporary differences associated with investments in subsidiaries, branches and associates and interests in joint arrangements for which deferred tax liabilities have not been recognised Average foreign exchange rate Average foreign exchange rate CAE Oxford Aviation Academy Phoenix Inc. CAE Oxford Aviation Academy Phoenix Inc. [Member] CAE Oxford Aviation Academy Phoenix Inc. [Member] Recognized in income Deferred tax expense (income) recognised in profit or loss Revenue recognition Description of accounting policy for recognition of revenue [text block] Prepaid rent to a portfolio investment Non-current prepayments Disclosure of detailed information about property, plant and equipment [line items] Disclosure of detailed information about property, plant and equipment [line items] Statement of comprehensive income [abstract] Statement of comprehensive income [abstract] Accounts receivable, maximum amount available to sell Accounts Receivable, Maximum Amount Available to Sell Accounts Receivable, Maximum Amount Available to Sell Analysis of employee compensation Analysis Of Employee Compensation [Table Text Block] Analysis Of Employee Compensation [Table Text Block] Accumulated depreciation and impairment Accumulated amortization and impairment Accumulated depreciation and amortisation [member] Deferred tax liability (asset), start Deferred tax liability (asset), end Deferred tax liability (asset) Unused tax losses for which no deferred tax asset recognised Unused tax losses for which no deferred tax asset recognised Basic – (in Canadian dollars per share) Basic earnings (loss) per share from continuing operations Disclosure of fair value measurement of assets [line items] Disclosure of fair value measurement of assets [line items] Share-based payments expense Increase (decrease) through share-based payment transactions, equity Cumulative unrecognised share of comprehensive losses of joint ventures Cumulative Unrecognised Share Of Comprehensive Losses of Joint Ventures Cumulative Unrecognised Share Of Comprehensive Losses of Joint Ventures Flight Training Alliance GmbH Flight Training Alliance GmbH (JV) [Member] Flight Training Alliance GmbH (JV) [Member] Acquisition of subsidiaries Acquisitions through business combinations, intangible assets and goodwill Other intangible assets Other intangible assets [member] Financial assets, at fair value Financial assets, at fair value Disclosure of range of exercise prices of outstanding share options [table] Disclosure of range of exercise prices of outstanding share options [table] Subclassifications of assets, liabilities and equities [abstract] Subclassifications of assets, liabilities and equities [abstract] Impairment of non-financial assets Description of accounting policy for impairment of non-financial assets [text block] Disclosure of maturity analysis of operating lease payments [line items] Disclosure of maturity analysis of operating lease payments [line items] Purchases Purchases of goods, related party transactions Disclosure of defined benefit plans [line items] Disclosure of defined benefit plans [line items] FINANCE EXPENSE - NET Disclosure of finance income (cost) [text block] Classes of assets [axis] Classes of assets [axis] Inventories Total inventories Current inventories Deductible temporary differences for which no deferred tax asset is recognised, period Deductible Temporary Differences For Which No Deferred Tax Asset Is Recognised, Period Deductible Temporary Differences For Which No Deferred Tax Asset Is Recognised, Period CAE North East Training Inc. CAE North East Training Inc. [Member] CAE North East Training Inc. [Member] Disclosure Of Quantitative Information About Leases For Lessee [Table] Disclosure Of Quantitative Information About Leases For Lessee [Table] Disclosure Of Quantitative Information About Leases For Lessee Non-financial assets, Government contributions relating to Covid-19 Non-Financial Assets, Government Contributions Relating To COVID-19 Non-Financial Assets, Government Contributions Relating To COVID-19 Financial liabilities at fair value through profit or loss, category Financial liabilities at fair value through profit or loss, category [member] Impairment Impairment, Right Of Use Assets Impairment, Right Of Use Assets Disclosure of operating segments [abstract] Disclosure of operating segments [abstract] Joint ventures [axis] Joint ventures [axis] Total realized and unrealized losses included in other comprehensive income Total realized and unrealized losses included in other comprehensive income Total realized and unrealized losses included in other comprehensive income Total liabilities Liabilities Liabilities TRU Simulation + Training Canada Inc. TRU Simulation + Training Canada Inc. [Member] TRU Simulation + Training Canada Inc. Share of after-tax profit of equity accounted investees Adjustments for undistributed profits of investments accounted for using equity method Additions and remeasurements Additions to right-of-use assets Common shares Issued capital [member] Impairment of property, plant and equipment Impairment Impairment loss recognised in profit or loss, property, plant and equipment Proceeds from long-term debt Increase (Decrease) Through Proceeds From Long-Term Debt Arising From Financing Activities Increase (Decrease) Through Proceeds From Long-Term Debt Arising From Financing Activities Products and services [member] Products and services [member] Units redeemed (in shares) Number Of Other Equity Instruments Redeemed In Share-based Payment Arrangement Number of other equity instruments redeemed in share-based payment arrangement Restricted Share Unit Plan (RSU) Restricted Share Unit Plan (RSU) [Member] Restricted Share Unit Plan (RSU) [Member] Level 2 and 3 of fair value hierarchy Level 2 and 3 of fair value hierarchy [member] Property, plant and equipment Property, plant and equipment, start Property, plant and equipment, end Property, plant and equipment Contractual capital commitments Contractual capital commitments Deferred Share Unit (DSU) Deferred Share Unit (DSU) [Member] Deferred Share Unit (DSU) [Member] Equity Issued, Price Per Share Equity Issued, Price Per Share Equity Issued, Price Per Share Derecognition of financial instruments Description of accounting policy for derecognition of financial instruments [text block] Amounts not allocated to a segment Amounts Not Allocated To A Segment [Member] Amounts Not Allocated To A Segment Dividend yield Expected dividend as percentage, share options granted Non-current assets other than financial instruments and deferred tax assets Non-Current Assets Other Than Financial Instruments And Deferred Tax Assets Non-Current Assets Other Than Financial Instruments And Deferred Tax Assets Disclosure of detailed information about business combination [abstract] Disclosure of detailed information about business combination [abstract] Total comprehensive (loss) income Comprehensive income CAE South America Flight Training do Brasil Ltda. CAE South America Flight Training do Brasil Ltda. [Member] CAE South America Flight Training do Brasil Ltda. [Member] Stock repurchased and retired during period, per shares Stock Repurchased and Retired During Period, Per Share Stock Repurchased and Retired During Period, Per Share Cash dividends Cash Dividend Issued During Period, Value Cash Dividend Issued During Period, Value National Flying Training Institute Private Limited National Flying Training Institute Private Limited [Member] National Flying Training Institute Private Limited [Member] Disclosure of quantitative information about right-of-use assets [table] Disclosure of quantitative information about right-of-use assets [table] Interest cost/Interest income Interest expense (income), net defined benefit liability (asset) Interest expense (income), net defined benefit liability (asset) Share-based payment arrangements [member] Share-based payment arrangements [member] Other Other finance cost Amount used Provision used, other provisions Employee Stock Option Plan Employee Stock Option Plan [Member] Employee Stock Option Plan [Member] CAE Colombia Flight Training S.A.S. CAE CFT Korea Ltd. [Member] CAE CFT Korea Ltd. [Member] Non-current portion (Note 18) Investment in finance leases (Note 17) Non-current finance lease receivables Disclosure of fair value measurement of liabilities Disclosure of fair value measurement of liabilities [text block] Classes of financial instruments [axis] Classes of financial instruments [axis] Disclosure of reconciliation of liabilities arising from financing activities Disclosure of reconciliation of liabilities arising from financing activities [text block] Total current assets Current assets Repayments of current borrowings Repayments of current borrowings Analysis of Restructuring, Integration, and Acquisition Costs [Table Text Block] Disclosure Of Restructuring, Integration, And Acquisition Costs Explanatory [Table Text Block] Disclosure Of Restructuring, Integration, And Acquisition Costs Explanatory [Table Text Block] Income taxes payable Current tax liabilities, current Repurchase and cancellation of common shares Purchase of treasury shares Methods of generation [axis] Methods of generation [axis] Types of share-based payment arrangements [axis] Types of share-based payment arrangements [axis] City Area Code City Area Code CAE Services Italia S.r.l. CAE Services Italia S.r.l. [Member] CAE Services Italia S.r.l. [Member] GOVERNMENT PARTICIPATION Disclosure of government grants [text block] Other Lease Liabilities, Other [Member] Lease Liabilities, Other [Member] Document Period End Date Document Period End Date CDN/USD CDN/USD [Member] CDN/USD [Member] OPERATING SEGMENTS AND GEOGRAPHIC INFORMATION Disclosure of entity's operating segments [text block] Weighted average duration of defined benefit obligation, period Weighted Average Duration Of Defined Benefit Obligation, Period Weighted Average Duration Of Defined Benefit Obligation, Period Cash and cash equivalents Cash and cash equivalents, beginning of year Cash and cash equivalents, end of year Less: cash and cash equivalents Cash and cash equivalents Schedule of inventory Schedule Of Inventory Explanatory [Table Text Block] Schedule Of Inventory Explanatory [Table Text Block] Total undiscounted lease payments receivable Undiscounted finance lease payments to be received Investing activities Cash flows from (used in) investing activities [abstract] Antidilutive securities excluded from computation of earnings per share, shares Antidilutive Securities Excluded from Computation of Earnings Per Share, Shares Antidilutive Securities Excluded from Computation of Earnings Per Share, Shares Types of hedges [axis] Types of hedges [axis] Repayment of lease liabilities Increase (Decrease) Through Repayments Of Lease Liabilities Arising From Financing Activities Increase (Decrease) Through Repayments Of Lease Liabilities Arising From Financing Activities Merlot Aero Limited Merlot Aero Limited [Member] Merlot Aero Limited Audited Annual Financial Statements Audited Annual Financial Statements Revenue Revenue from sale of goods, related party transactions Repurchase and cancellation of common shares (in shares) Purchase of Treasury Shares, Shares Purchase of Treasury Shares, Shares Disclosure of terms and conditions of share-based payment arrangement [table] Disclosure of terms and conditions of share-based payment arrangement [table] Useful lives, property, plant and equipment Useful Lives, Property Plant And Equipment Useful Lives, Property Plant And Equipment Foreign currency exchange differences on translation of foreign operations Gains (losses) on exchange differences on translation, before tax Impairment and other gains and losses incurred in relation to the COVID-19 pandemic Impairment And Other (Gains) And Losses Incurred In Relation To the COVID-19 Pandemic Impairment And Other (Gains) And Losses Incurred In Relation To the COVID-19 Pandemic CAE Training & Services UK Ltd. CAE Training & Services UK Ltd. [Member] CAE Training & Services UK Ltd. [Member] CAE International Holdings Limited CAE International Holdings Limited [Member] CAE International Holdings Limited [Member] Reversal of unused amounts Unused provision reversed, other provisions CAPITAL RISK MANAGEMENT Disclosure of objectives, policies and processes for managing capital [text block] Total investment in finance leases Net investment in finance lease Research and development expenses Research and development expense Cover [Abstract] Other Other finance income CAE Middle East L.L.C. CAE Middle East L.L.C. [Member] CAE Middle East L.L.C. [Member] Male Male [Member] Male [Member] 31-60 days Later than one month and not later than two months [member] Corporate Corporate Debt [Member] Corporate [Member] Disclosure of disaggregation of revenue from contracts with customers [line items] Disclosure of disaggregation of revenue from contracts with customers [line items] Total purchase consideration Consideration transferred, acquisition-date fair value Range [axis] Range [axis] Between 4 and 5 years Later than four years and not later than five years [member] Salaries and other short-term employee benefits Wages and salaries Net book value of property, plant and equipment leased under operating lease to third parties Property, Plant And Equipment, Leased Under Operating Lease To Third Parties Property, Plant And Equipment, Leased Under Operating Lease To Third Parties Not internally generated Not internally generated [member] Disclosure Of The Impact Of The COVID-19 Pandemic [Abstract] Disclosure Of The Impact Of The COVID-19 Pandemic [Abstract] CAE Civil Aviation Training Solutions, Inc. CAE Civil Aviation Training Solutions, Inc. [Member] CAE Civil Aviation Training Solutions, Inc. [Member] Canadian dollar, variable rate Revolving Credit Facilities, Canadian Dollar, Variable Rate [Member] Revolving Credit Facilities, Canadian Dollar, Variable Rate [Member] Increase In royalty obligations, impact of 1% change in growth rate Increase (Decrease) In Royalty Obligation, Impact Of One Percent Change In Growth Rate Increase (Decrease) In Royalty Obligation, Impact Of One Percent Change In Growth Rate Contingent consideration [member] Contingent consideration [member] Eligible costs incurred by the company to fiscal 2022 Eligible Costs Incurred By The Company To Fiscal 2022, Percentage Eligible Costs Incurred By The Company To Fiscal 2022, Percentage Weighted average remaining contractual life Weighted Average Remaining Contractual Life Of Outstanding Share Options, Period Weighted Average Remaining Contractual Life Of Outstanding Share Options, Period Actuarial assumption of expected rates of salary increases Actuarial assumption of expected rates of salary increases [member] Accrued liabilities Accruals classified as current Repayment of long-term debt Repayment of long-term debt Repayments of non-current borrowings HFTS Helicopter Flight Training Services GmbH HFTS Helicopter Flight Training Services GmbH [Member] HFTS Helicopter Flight Training Services GmbH [Member] Effect of foreign currency exchange differences on cash and cash equivalents Effect of exchange rate changes on cash and cash equivalents Minimum Minimum [Member] (Loss) earnings per share attributable to equity holders of the Company Earnings per share [abstract] CAE Simulator Services Inc. CAE Simulator Services Inc. [Member] CAE Simulator Services Inc. [Member] Short-term lease, low-value assets, and variable lease payments expenses Expense Relating To Short-Term Leases, Low-Value Assets, And Variable Lease Payments Expense Relating To Short-Term Leases, Low-Value Assets, And Variable Lease Payments Issue of equity Issue of equity Europe Europe [Member] Other intangible assets Description of accounting policy for intangible assets other than goodwill [text block] Aviation Training Northeast Asia B.V. Aviation Training Northeast Asia B.V. [Member] Aviation Training Northeast Asia B.V. [Member] Non-current receivables Non-current loans and receivables Disclosure of entity's operating segments [Abstract] Disclosure of entity's operating segments [Abstract] Disclosure of entity's operating segments [Abstract] Philippine Academy for Aviation Training, Inc. Philippine Academy of Aviation Training [Member] Philippine Academy of Aviation Training [Member] Restricted funds for subscription receipts deposit Current restricted cash and cash equivalents Entity Interactive Data Current Entity Interactive Data Current Cash and cash equivalents, amount contributed to fair value of plan assets Cash and cash equivalents, amount contributed to fair value of plan assets United States UNITED STATES Parc Aviation (UK) Ltd. Parc Aviation UK Ltd [Member] Parc Aviation UK Ltd [Member] Financial assets Description of accounting policy for financial assets [text block] Temporary difference, unused tax losses and unused tax credits [member] Temporary difference, unused tax losses and unused tax credits [member] Statement of cash flows [abstract] Statement of cash flows [abstract] Units vested, end of year (in shares) Number Of Other Equity Instruments Vested In Share-based Payment Arrangement Number Of Other Equity Instruments Vested In Share-based Payment Arrangement Contract liabilities Adjustments For Increase (Decrease) Due To Customers For Contract Work As Liability Adjustments For Increase (Decrease) Due To Customers For Contract Work As Liability Transaction costs Description Of Accounting Policy For Transaction Costs [Policy Text Block] Description Of Accounting Policy For Transaction Costs [Policy Text Block] CAE Luxembourg Acquisition, S.à r.l. CAE Luxembourg Acquisition S.à r.l. [Member] CAE Luxembourg Acquisition S.à r.l. [Member] Unused amounts reversed Reversal, allowance account for credit losses of financial assets Percentage of reasonably possible increase in actuarial assumption Percentage of reasonably possible increase in actuarial assumption Credit risk and credit loss allowances for accounts receivable and contract assets by segment Disclosure of credit risk [text block] Number of operating segments Number Of Operating Segments1 Number of Operating Segments1 Tax impact on after-tax profit of equity accounted investees Tax impact on after-tax profit of equity accounted investees Tax impact on after-tax profit of equity accounted investees CAE Maritime Middle East L.L.C. CAE Maritime Middle East LLC [Member] CAE Maritime Middle East LLC [Member] Expected volatility Expected volatility, share options granted Current portion of carrying amount of share-based payment liabilities Current portion of carrying amount of share-based payment liabilities Current portion of carrying amount of share-based payment liabilities Depreciation Depreciation Depreciation, property, plant and equipment Remaining performance obligations Transaction price allocated to remaining performance obligations S2PxA CMI 2020 S2PxA CMI 2020 [Member] S2PxA CMI 2020 Debt and Financing Obligations [Abstract] Debt and Financing Obligations [Abstract] Debt and Financing Obligations [Abstract] Property, plant and equipment Property, plant and equipment recognised as of acquisition date INCOME TAXES Disclosure of income tax [text block] Effect of dilutive stock options, shares Dilutive effect of share options on number of ordinary shares Increase (decrease) in defined benefit obligation due to reasonably possible decrease in actuarial assumption Increase (decrease) in defined benefit obligation due to reasonably possible decrease in actuarial assumption Long-term payable Fair value of long-term contingent cash consideration payable Liabilities incurred CAE Academia de Aviacion (Espana) S.L. Avianca - CAE Flight Training (ACFT) S.A.S. [Member] Avianca - CAE Flight Training (ACFT) S.A.S. [Member] Disclosure of sensitivity analysis for actuarial assumptions Disclosure of sensitivity analysis for actuarial assumptions [text block] Municipal Municipal Debt [Member] Municipal [Member] Cash and cash equivalents Cash And Cash Equivalents1 [Member] Cash And Cash Equivalents [Member] Equity instruments, amount contributed to fair value of plan assets Equity instruments, amount contributed to fair value of plan assets CAE Integrated Enterprise Solutions Australia Pty Ltd. CAE Integrated Enterprise Solutions Australia Pty Ltd. [Member] CAE Integrated Enterprise Solutions Australia Pty Ltd. [Member] CAE Kuala Lumpur Sdn. Bhd. CAE Kuala Lumpur Sdn Bhd [Member] CAE Kuala Lumpur Sdn Bhd [Member] Revolving Credit Facilities Revolving Unsecured Credit Facilities [Member] Revolving Unsecured Credit Facilities [Member] Goodwill Description of accounting policy for goodwill [text block] CAE Flight and Simulator Services Korea, Ltd. CAE Flight and Simulator Services Korea, Ltd. [Member] CAE Flight and Simulator Services Korea, Ltd. [Member] U.S. dollar Lease Liabilities, US Dollar [Member] Lease Liabilities, US Dollar [Member] Disclosure of maturity analysis for non-derivative financial liabilities [line items] Disclosure of maturity analysis for non-derivative financial liabilities [line items] Net proceeds from the issuance of common shares Proceeds from issuing shares CAE Oslo - Aviation Academy AS CAE Oslo - Aviation Academy AS [Member] CAE Oslo - Aviation Academy AS Intangible Assets [Abstract] Intangible Assets [Abstract] Intangible Assets [Abstract] NATURE OF OPERATIONS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Disclosure of significant accounting policies [text block] Disclosure of net defined benefit liability (asset) [line items] Disclosure of net defined benefit liability (asset) [line items] Disclosure of other provisions [table] Disclosure of other provisions [table] Foreign currency exchange differences Increase (decrease) through changes in foreign exchange rates, net defined benefit liability (asset) SIMCOM Holdings, Inc. SIMCOM Holdings, Inc [Member] SIMCOM Holdings, Inc [Member] CAE Center Brussels N.V. CAE Center Brussels N.V. [Member] CAE Center Brussels N.V. [Member] Financial assets at fair value through profit or loss, category Financial assets at fair value through profit or loss, category [member] Life expectancy range [axis] Life Expectancy Range [Axis] Life Expectancy Range [Axis] Additions from business combinations, Financial Instruments Additions from business combinations, Financial Instruments Additions from business combinations, Financial Instruments Disclosure of reconciliation of changes in intangible assets and goodwill [line items] Disclosure of reconciliation of changes in intangible assets and goodwill [line items] Other Provisions, Contingent Liabilities And Contingent Assets [Abstract] Other Provisions, Contingent Liabilities And Contingent Assets [Abstract] Other Provisions, Contingent Liabilities And Contingent Assets [Abstract] No expiry date Indefinite Tax Year [Member] Indefinite Tax Year [Member] Total capital expenditures Payments to Acquire Productive Assets Payments to Acquire Productive Assets Investment tax credits Investment Tax Credits Related Temporary Differences [Member] Investment Tax Credits Related Temporary Differences [Member] Expected credit loss rate Expected credit loss rate Income, Government contributions relating to Covid-19 Government Contributions Relating To COVID-19, Income Impacts Government Contributions Relating To COVID-19, Income Impacts Price per subscription receipt Price Per Subscription Receipt Price Per Subscription Receipt Repurchase and cancellation of common shares Payments For Repurchase Of Common Stock Payments For Repurchase Of Common Stock Unsecured Senior Notes Unsecured Senior Notes [Member] Unsecured Senior Notes [Member] Derivative financial assets Current derivative financial assets Share-based payments expense, net of equity swap (Note 26) Expense From Share-based Payment Transactions With Employees, Net Of Equity Swap Expense From Share-based Payment Transactions With Employees, Net Of Equity Swap Equity attributable to owners of parent Equity attributable to owners of parent [member] Items that will never be reclassified to net (loss) income Other comprehensive income that will not be reclassified to profit or loss, net of tax Optional cash purchase of common shares (in shares) Optional Cash Purchase, Shares Optional Cash Purchase, Shares Analysis of other comprehensive income Disclosure of analysis of other comprehensive income by item [text block] Entity File Number Entity File Number Interest earned on escrowed proceeds Subscription Receipts, Interest Earned On Escrowed Proceeds Subscription Receipts, Interest Earned On Escrowed Proceeds Key management personnel compensation Key management personnel compensation Buildings and improvements Buildings [member] Equity Equity [abstract] CAE Australia Pty Ltd. CAE Australia Pty Ltd. [Member] CAE Australia Pty Ltd. [Member] SHARE-BASED PAYMENTS Disclosure of share-based payment arrangements [text block] Actuarial assumption of discount rates, pension obligation Actuarial assumption of discount rates Aircraft Aircraft And Aircraft Engines [Member] Aircraft And Aircraft Engines [Member] CAE Colombia Flight Training S.A.S. CAE Colombia Flight Training S.A.S. [Member] CAE Colombia Flight Training S.A.S. Disclosure of financial assets [table] Disclosure of financial assets [table] Exercisable (in shares) Number of share options exercisable in share-based payment arrangement Disclosure of net defined benefit liability (asset) Disclosure of net defined benefit liability (asset) [text block] Share-based payment arrangement Share-Based Payment Arrangement, Performance Criteria, Factor Percentage Share-Based Payment Arrangement, Performance Criteria, Factor Percentage Credited to income Income from government grants Supplemental Cash Flow Information Supplemental Cash Flow Information [Table Text Block] Supplemental Cash Flow Information [Table Text Block] Effective Income Tax Rate Reconciliation Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Document Annual Report Document Annual Report Number of shares authorized to be repurchased renewal, shares Stock Repurchase Program, Number of Shares Authorized to be Repurchased1 Stock Repurchase Program, Number of Shares Authorized to be Repurchased1 Income taxes recoverable Current tax assets, current Risks [member] Risks [member] Emirates-CAE Flight Training LLC Emirates-CAE Flight Training LLC [Member] Emirates-CAE Flight Training LLC [Member] Net defined benefit liability (asset) [member] Net defined benefit liability (asset) [member] Other non-current liabilities Non-current liabilities recognised as of acquisition date Restructuring, Integration and Acquisition costs [Abstract] Restructuring, Integration and Acquisition costs [Abstract] Financial liabilities Financial liabilities CAE Crewing Services Limited CAE Crewing Services Limited [Member] CAE Crewing Services Limited [Member] Categories of financial assets [axis] Categories of financial assets [axis] Derivative financial assets Non-current derivative financial assets $22.31 to $34.98 Exercise Price Range Three [Member] Exercise Price Range Three [Member] Current portion of royalty obligations Current Portion Of Royalty Obligations Current Portion Of Royalty Obligations INVENTORIES Disclosure of inventories [text block] Options outstanding, beginning of year (in shares) Options outstanding, end of year (in shares) Number of share options outstanding Number of share options outstanding in share-based payment arrangement Financing activities Cash flows from (used in) financing activities [abstract] ACCOUNTS PAYABLE AND ACCRUED LIABILITIES Disclosure of trade and other payables [text block] Other Other inflows (outflows) of cash, classified as operating activities Related Party [Abstract] Related Party [Abstract] Related Party [Abstract] Funded Wholly or partly funded defined benefit plans [member] Tax Period [Axis] Tax Period1 [Axis] Tax Period [Axis] Optional cash purchase of common shares Optional Cash Purchase, Value Optional Cash Purchase, Value Disclosure of leases [Abstract] Disclosure of leases [Abstract] Disclosure of leases [Abstract] Termination benefits Description of accounting policy for termination benefits [text block] Categories of related parties [axis] Categories of related parties [axis] Segments [member] Segments [member] Fair Value Measurement [Abstract] Fair Value Measurement [Abstract] Fair Value Measurement [Abstract] CAE Entrenamiento de Vuelo Chile Limitada CAE Aviation Training Chile Limitada [Member] CAE Aviation Training Chile Limitada [Member] Long-term debt Long-term Debt, Gross Long-term Debt, Gross Total contributions Government Participation, Contributions Government Participation, Contributions Number of days prior to incentive compensation, payable to executives Number of Days Prior To Incentive Compensation, Payable To Executives Number of Days Prior To Incentive Compensation, Payable To Executives CAE GAH Aviation Technology Services Co Ltd. CAE GAH Aviation Technology Services Co Ltd. [Member] CAE GAH Aviation Technology Services Co Ltd. Type of Debt Instrument [Axis] Type of Debt Instrument [Axis] Type of Debt Instrument [Axis] Parc Aviation Limited Parc Aviation Limited [Member] Parc Aviation Limited [Member] Total Gross Account Receivable and Contract Assets Gross Account Receivable and Contract Assets Disclosure of detailed information about financial instruments [line items] Disclosure of detailed information about financial instruments [line items] Aircraft Aircraft [member] Administrative costs, net defined benefit liability (asset) Administrative costs, net defined benefit liability (asset) Administrative costs, net defined benefit liability (asset) Other Issuance Related Costs, Recorded As A Deduction From Equity Other Issuance Related Costs, Recorded As A Deduction From Equity Other Issuance Related Costs, Recorded As A Deduction From Equity Actuarial assumption of expected rates of salary increases, net pension cost Actuarial Assumption Of Expected Rates Of Salary Increases, Net Pension Cost Actuarial Assumption Of Expected Rates Of Salary Increases, Net Pension Cost Deferred revenue and contract liabilities Deferred income classified as non-current Number of shares issued and fully paid, shares Number of shares issued and fully paid Share-based payment transactions Description of accounting policy for share-based payment transactions [text block] CAE Simulation Technologies Private Limited CAE Simulation Technologies Private Limited [Member] CAE Simulation Technologies Private Limited [Member] Property, plant and equipment [member] Property, plant and equipment [member] CAE Centre Hong Kong Limited CAE Centre Hong Kong Limited [Member] CAE Centre Hong Kong Limited [Member] Disclosure of fair value measurement of assets Disclosure of fair value measurement of assets [text block] Borrowings, interest rate Borrowings, interest rate L3Harris' Military Training business L3Harris' Military Training business [Member] L3Harris' Military Training business Equity swap agreements Equity Swap Agreements [Member] Equity Swap Agreements [Member] Units granted (in shares) Number of other equity instruments granted in share-based payment arrangement Explanation of effect of share-based payments on entity's profit or loss Explanation of effect of share-based payments on entity's profit or loss [text block] Intangible assets Identifiable intangible assets recognised as of acquisition date Simulators Simulators [Member] Simulators [Member] CAE USA Inc. CAE USA Inc. [Member] CAE USA Inc. [Member] CAE Servicios Globales de Instrucción de Vuelo (España), S.L. CAE Servicios Globales de Instrucción de Vuelo (España), S.L. [Member] CAE Servicios Globales de Instrucción de Vuelo (España), S.L. [Member] Share issue related cost, income tax recovery Share Issue Related Cost, Income Tax Recovery Share Issue Related Cost, Income Tax Recovery Additions to property, plant and equipment Purchase of property, plant and equipment, classified as investing activities Inventories Description of accounting policy for measuring inventories [text block] Helicopter Training Media International GmbH Helicopter Training Media International GmbH [Member] Helicopter Training Media International GmbH [Member] Basis of preparation Explanation of measurement bases used in preparing financial statements [text block] CAE Aircrew Training Services plc CAE Aircrew Training Services plc [Member] CAE Aircrew Training Services plc [Member] Current Fiscal Year End Date Current Fiscal Year End Date CAE CFT B.V. CAE CFT B.V. [Member] CAE CFT B.V. 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Disclosure of additional information about finance and operating leasing activities [Table] Disclosure of additional information about finance and operating leasing activities Issuance of common shares under an equity offering (in shares) Issuance Of Common Shares Under An Equity Offering, Shares Issuance Of Common Shares Under An Equity Offering, Shares Finance expense Finance Expense Finance Expense Total equity Balances, beginning of year Balances, end of year Equity Equity Schedule of Right-of-use assets Disclosure of quantitative information about right-of-use assets [text block] Interest payable Interest payable Net short-term payable Net Short-term Receivable (Payable) Recognised As Of Acquisition Date Net Short-term Receivable (Payable) Recognised As Of Acquisition Date Disclosure of range of exercise prices of outstanding share options Disclosure of range of exercise prices of outstanding share options [text block] Carrying amount [member] Carrying amount [member] Current 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CAE TSP Inc. [Member] CAE TSP Inc. Undrawn borrowing facilities Undrawn borrowing facilities Intangible assets Intangible Assets Related Temporary Differences [Member] Intangible Assets Related Temporary Differences [Member] Local Phone Number Local Phone Number Civil Aviation Training Solutions, Defense and Security and Healthcare Civil Aviation Training Solutions, Defense and Security and Healthcare [Member] Civil Aviation Training Solutions, Defense and Security and Healthcare [Member] Decrease of other net assets Measurement Period Adjustments, Increase (Decrease) Of Other Net Assets Measurement Period Adjustments, Increase (Decrease) Of Other Net Assets Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Intangible assets and goodwill [member] Intangible assets and goodwill [member] Lease liabilities Lease liabilities [member] Statement of changes in equity [abstract] Statement of changes in equity [abstract] Address Type [Domain] Address Type [Domain] Equity interests acquired Percentage of voting equity interests acquired Accounts receivable Trade receivables [member] CAE Academia de Aviacion (Espana) S.L. CAE Academia de Aviacion (Espana) S.L. [Member] CAE Academia de Aviacion (Espana) S.L. 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CAE Training & Services Brussels NV [Member] CAE Training & Services Brussels NV [Member] Deferred tax liabilities Deferred tax liabilities Post-employment benefits – defined contribution plans Post-employment benefit expense, defined contribution plans Net gain (loss) on hedges of net investment in foreign operations Change in fair value of financial instruments, loss Gains (losses) on hedges of net investments in foreign operations, before tax Accounts receivable Adjustments for decrease (increase) in trade accounts receivable