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IMPAIRMENT OF NON-FINANCIAL ASSETS - Changes In Goodwill (Details) - CAD ($) $ in Millions | 12 Months Ended
--- | ---
Mar. 31, 2023 | Mar. 31, 2022
Disclosure of reconciliation of changes in goodwill [line items] |  |
Goodwill at the start of the period | $ 2,464.3 | $ 1,173.2
Business combinations (Note 2) |  | 1,812.4
Foreign currency exchange differences | 223.2 | (33.5)
Goodwill at the end of the period | 2,663.3 | 2,464.3
Civil Aviation |  |
Disclosure of reconciliation of changes in goodwill [line items] |  |
Goodwill at the start of the period | 1,046.8 | 789.2
Goodwill at the end of the period | 1,125.6 | 1,046.8
Defense and Security |  |
Disclosure of reconciliation of changes in goodwill [line items] |  |
Goodwill at the start of the period | 1,305.8 | 279.3
Goodwill at the end of the period | 1,417.3 | 1,305.8
Healthcare |  |
Disclosure of reconciliation of changes in goodwill [line items] |  |
Goodwill at the start of the period | 111.7 | 104.7
Goodwill at the end of the period | 120.4 | 111.7
Goodwill |  |
Disclosure of reconciliation of changes in goodwill [line items] |  |
Business combinations (Note 2) |  | 1,316.8
Foreign currency exchange differences | $ 163.2 | $ (25.7)

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- Definition The amount of assets representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognised. [Refer: Business combinations [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 36 -IssueDate 2022-03-24 -Paragraph 134 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=36&code=ifrs-tx-2022-en-r&anchor=para_134_a&doctype=Standard -URIDate 2022-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 36 -IssueDate 2022-03-24 -Paragraph 135 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=36&code=ifrs-tx-2022-en-r&anchor=para_135_a&doctype=Standard -URIDate 2022-03-24 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2022-03-24 -Paragraph B67 -Subparagraph d -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2022-en-r&anchor=para_B67_d&doctype=Appendix&subtype=B -URIDate 2022-03-24 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2022-03-24 -Paragraph 54 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_54_c&doctype=Standard -URIDate 2022-03-24 + Details
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