GAIN ON REMEASUREMENT OF PREVIOUSLY HELD EQUITY INTEREST (Details) - CAD ($) $ in Millions |
7 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|
Nov. 05, 2024 |
Nov. 04, 2024 |
Mar. 31, 2026 |
Mar. 31, 2025 |
|
| Disclosure of information about consolidated structured entities [line items] | ||||
| Gain (loss) recognised as result of remeasuring to fair value equity interest in acquiree held by acquirer before business combination | $ 0.0 | $ 72.6 | ||
| SIMCOM | ||||
| Disclosure of information about consolidated structured entities [line items] | ||||
| Equity interest in joint venture (in percent) | 50.00% | |||
| SIMCOM | ||||
| Disclosure of information about consolidated structured entities [line items] | ||||
| Gain (loss) recognised as result of remeasuring to fair value equity interest in acquiree held by acquirer before business combination | $ 72.6 | |||
| Disposal of discontinued operations | 29.4 | |||
| Cumulative foreign exchange differences derecognised | 7.7 | |||
| Other expenses | $ 5.3 | |||