CONTINGENCIES AND COMMITMENTS - Schedule of contractual purchase commitments that are not recognized as liabilities (Details) - CAD ($) $ in Millions |
Mar. 31, 2026 |
Mar. 31, 2025 |
|---|---|---|
| Disclosure of Maturity Analysis of Operating and Finance Lease Payments | ||
| Contractual capital commitments | $ 678.6 | $ 697.5 |
| Less than 1 year | ||
| Disclosure of Maturity Analysis of Operating and Finance Lease Payments | ||
| Contractual capital commitments | 320.9 | 411.8 |
| Between 1 and 5 years | ||
| Disclosure of Maturity Analysis of Operating and Finance Lease Payments | ||
| Contractual capital commitments | 294.0 | 262.1 |
| Later than 5 years | ||
| Disclosure of Maturity Analysis of Operating and Finance Lease Payments | ||
| Contractual capital commitments | $ 63.7 | $ 23.6 |