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INCOME TAXES - Movements In Temporary Differences (Details) - CAD ($) $ in Millions | 12 Months Ended
--- | ---
Mar. 31, 2024 | Mar. 31, 2023
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |
Deferred tax liability (asset), beginning of period | $ (4.2) | $ 23.7
Recognized in income | 233.7 | (10.4)
Recognized in OCI | (10.6) | (9.8)
Disposal of discontinued operations | (25.1) |
Business combinations |  | (2.1)
Foreign currency exchange differences | 2.9 | (5.6)
Deferred tax liability (asset), end of period | 196.7 | (4.2)
Non-capital loss carryforwards |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |
Deferred tax liability (asset), beginning of period | 98.2 | 96.9
Recognized in income | 59.4 | (4.4)
Recognized in OCI | 0.0 | 0.0
Disposal of discontinued operations | (14.6) |
Business combinations |  | 0.0
Foreign currency exchange differences | (0.5) | 5.7
Deferred tax liability (asset), end of period | 142.5 | 98.2
Unclaimed research & development expenditures |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |
Deferred tax liability (asset), beginning of period | 162.3 | 86.6
Recognized in income | 13.5 | 75.8
Recognized in OCI | 0.0 | 0.0
Disposal of discontinued operations | (13.7) |
Business combinations |  | 0.0
Foreign currency exchange differences | 0.0 | (0.1)
Deferred tax liability (asset), end of period | 162.1 | 162.3
Investment tax credits |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |
Deferred tax liability (asset), beginning of period | (82.1) | (85.4)
Recognized in income | 5.8 | 3.3
Recognized in OCI | 0.0 | 0.0
Disposal of discontinued operations | 2.1 |
Business combinations |  | 0.0
Foreign currency exchange differences | 0.4 | 0.0
Deferred tax liability (asset), end of period | (73.8) | (82.1)
Property, plant and equipment and right-of-use of assets |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |
Deferred tax liability (asset), beginning of period | (114.8) | (82.7)
Recognized in income | (41.0) | (22.9)
Recognized in OCI | 0.0 | 0.0
Disposal of discontinued operations | 1.1 |
Business combinations |  | (2.8)
Foreign currency exchange differences | 0.6 | (6.4)
Deferred tax liability (asset), end of period | (154.1) | (114.8)
Intangible assets |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |
Deferred tax liability (asset), beginning of period | (114.7) | (90.2)
Recognized in income | 64.6 | (19.7)
Recognized in OCI | 0.0 | 0.0
Disposal of discontinued operations | 10.5 |
Business combinations |  | 0.0
Foreign currency exchange differences | 0.6 | (4.8)
Deferred tax liability (asset), end of period | (39.0) | (114.7)
Amounts not currently deductible |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |
Deferred tax liability (asset), beginning of period | 80.3 | 83.1
Recognized in income | 3.0 | (4.7)
Recognized in OCI | 0.0 | 0.0
Disposal of discontinued operations | (6.9) |
Business combinations |  | 0.0
Foreign currency exchange differences | 0.5 | 1.9
Deferred tax liability (asset), end of period | 76.9 | 80.3
Government participation |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |
Deferred tax liability (asset), beginning of period | (32.6) | (24.0)
Recognized in income | 118.7 | (8.6)
Recognized in OCI | 0.0 | 0.0
Disposal of discontinued operations | 0.3 |
Business combinations |  | 0.0
Foreign currency exchange differences | 0.0 | 0.0
Deferred tax liability (asset), end of period | 86.4 | (32.6)
Other |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |
Deferred tax liability (asset), beginning of period | (0.8) | 39.4
Recognized in income | 9.7 | (29.2)
Recognized in OCI | (10.6) | (9.8)
Disposal of discontinued operations | (3.9) |
Business combinations |  | 0.7
Foreign currency exchange differences | 1.3 | (1.9)
Deferred tax liability (asset), end of period | $ (4.3) | $ (0.8)

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- Definition The amount of tax expense or income relating to changes in deferred tax liabilities and deferred tax assets, recognised in profit or loss. [Refer: Deferred tax assets; Deferred tax expense (income); Deferred tax liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2023-01-01 -Paragraph 81 -Subparagraph g -Clause ii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=12&code=ifrs-tx-2023-en-r&anchor=para_81_g_ii&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The amount of deferred tax liabilities or assets. [Refer: Deferred tax liabilities; Deferred tax assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2023-01-01 -Paragraph 81 -Subparagraph g -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=12&code=ifrs-tx-2023-en-r&anchor=para_81_g_i&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The amount of income tax relating to amounts recognised in other comprehensive income. [Refer: Other comprehensive income] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2023-01-01 -Paragraph 81 -Subparagraph ab -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=12&code=ifrs-tx-2023-en-r&anchor=para_81_ab&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 90 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_90&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The increase (decrease) in deferred tax liability (asset) resulting from the net exchange differences arising when the financial statements are translated 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: Deferred tax liability (asset)] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 12 -IssueDate 2023-01-01 -Paragraph 81 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=12&code=ifrs-tx-2023-en-r&anchor=para_81&doctype=Standard -URIDate 2023-03-23 + Details
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