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DISCONTINUED OPERATIONS - Income statement (Details) - CAD ($) $ in Millions |  | 12 Months Ended
--- | --- | ---
Feb. 16, 2024 | Mar. 31, 2024 | Mar. 31, 2023
Disclosure of analysis of single amount of discontinued operations [line items] |  |  |
Revenue |  | $ 4,282.8 | $ 4,010.6
Operating (loss) income |  | (185.4) | 466.0
Finance expense |  | 205.0 | 173.6
(Loss) earnings before income taxes |  | (390.4) | 292.4
Income tax (recovery) expense |  | (9.4) | 1.8
Net income from discontinued operations before after-tax gain on disposal |  | 4.8 | 2.1
After-tax gain on disposal of discontinued operations |  | 16.5 | 0.0
Net income from discontinued operations |  | 21.3 | 2.1
Discontinued operations |  |  |
Disclosure of analysis of single amount of discontinued operations [line items] |  |  |
Revenue |  | 131.7 | 192.7
Expenses |  | 132.7 | 184.7
Operating (loss) income |  | (1.0) | 8.0
Finance expense |  | 3.6 | 4.1
(Loss) earnings before income taxes |  | $ (4.6) | $ 3.9
After-tax gain on disposal of discontinued operations | $ 16.5 |  |

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- Definition The gain (loss) recognised on the measurement to fair value less costs to sell or on the disposal of the assets or disposal group(s) constituting the discontinued operation. [Refer: Discontinued operations [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 5 -IssueDate 2023-01-01 -Paragraph 33 -Subparagraph b -Clause iii -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=5&code=ifrs-tx-2023-en-r&anchor=para_33_b_iii&doctype=Standard -URIDate 2023-03-23 + Details
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