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L3HARRIS' MILITARY TRAINING BUSINESS - Private placements of subscription receipts (Details) - CAD ($) $ in Millions | Jul. 02, 2021 | Mar. 31, 2022 | Mar. 31, 2021
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Disclosure of detailed information about business combination [abstract] |  |  |
Gross proceeds | $ 700.0 |  |
Restricted funds for subscription receipts deposit |  | $ 0.0 | $ 700.1
Liabilities for subscription receipts |  | $ 0.0 | $ 714.1

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- Definition Liabilities For Subscription Receipts, Current + References No definition available. + Details
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- Definition Proceeds From Issuance Of Subscription Receipts + References No definition available. + Details
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Namespace Prefix: | cae_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition The amount of current restricted cash and cash equivalents. [Refer: Restricted cash and cash equivalents] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_55&doctype=Standard -URIDate 2021-03-24 + Details
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Balance Type: | debit
Period Type: | instant

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- References No definition available. + Details
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