INTANGIBLE ASSETS - Goodwill Reconciliation (Details) - CAD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2025 |
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| Changes in goodwill [abstract] | ||
| Goodwill at the start of the period | $ 2,439.7 | $ 1,971.3 |
| Business combinations (Note 2 and 6) | 350.2 | |
| Foreign currency exchange differences | (39.9) | 118.2 |
| Goodwill at the end of the period | 2,399.8 | 2,439.7 |
| Civil Aviation | ||
| Changes in goodwill [abstract] | ||
| Goodwill at the start of the period | 1,540.8 | 1,120.8 |
| Business combinations (Note 2 and 6) | 350.2 | |
| Foreign currency exchange differences | (14.5) | 69.8 |
| Goodwill at the end of the period | 1,526.3 | 1,540.8 |
| Defense and Security | ||
| Changes in goodwill [abstract] | ||
| Goodwill at the start of the period | 898.9 | 850.5 |
| Business combinations (Note 2 and 6) | 0.0 | |
| Foreign currency exchange differences | (25.4) | 48.4 |
| Goodwill at the end of the period | $ 873.5 | $ 898.9 |
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- Definition The amount of additional goodwill recognised, except goodwill included in a disposal group that, on acquisition, meets the criteria to be classified as held for sale in accordance with IFRS 5. [Refer: Goodwill; Disposal groups classified as held for sale [member]] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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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: Total for all business combinations [member]] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The increase (decrease) in goodwill resulting from net exchange differences arising on the translation of the financial statements from the functional currency into a different presentation currency, including the translation of a foreign operation into the presentation currency of the reporting entity. [Refer: Goodwill] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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