v3.26.1
SHARE-BASED PAYMENTS - RSU, PSU and DSU Activity (Details) - shares
 12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Equity-settled RSU    
Disclosure of terms and conditions of share-based payment arrangement [line items]    
Units outstanding, beginning of year (in shares) 574,726 292,634
Units granted (in shares) 599,684 393,805
Units cancelled (in shares) (46,991) (94,872)
Units outstanding, end of year (in shares) 1,119,861 574,726
Units vested, end of year (in shares) 760,647 404,144
Equity-settled RSU | Settled in shares    
Disclosure of terms and conditions of share-based payment arrangement [line items]    
Settled in cash / Redeemed (in shares) (1,702) (15,370)
Equity-settled RSU | Settled in cash    
Disclosure of terms and conditions of share-based payment arrangement [line items]    
Settled in cash / Redeemed (in shares) (5,856) (1,471)
Equity-settled PSU    
Disclosure of terms and conditions of share-based payment arrangement [line items]    
Units outstanding, beginning of year (in shares) 1,409,472 780,786
Units granted (in shares) 1,021,502 903,341
Units cancelled (in shares) (110,706) (242,151)
Units outstanding, end of year (in shares) 2,315,586 1,409,472
Units vested, end of year (in shares) 1,600,821 1,037,878
Equity-settled PSU | Settled in shares    
Disclosure of terms and conditions of share-based payment arrangement [line items]    
Settled in cash / Redeemed (in shares) (1,248) (30,060)
Equity-settled PSU | Settled in cash    
Disclosure of terms and conditions of share-based payment arrangement [line items]    
Settled in cash / Redeemed (in shares) (3,434) (2,444)
DSU plans    
Disclosure of terms and conditions of share-based payment arrangement [line items]    
Units outstanding, beginning of year (in shares) 1,377,311 1,487,414
Units granted (in shares) 143,539 139,677
Settled in cash / Redeemed (in shares) (599,613) (249,780)
Units outstanding, end of year (in shares) 921,237 1,377,311
RSU plan    
Disclosure of terms and conditions of share-based payment arrangement [line items]    
Units outstanding, beginning of year (in shares) 193,139 404,037
Units cancelled (in shares) (5,320) (43,833)
Settled in cash / Redeemed (in shares) (187,819) (167,065)
Units outstanding, end of year (in shares) 0 193,139
Units vested, end of year (in shares) 0 184,725
PSU plan    
Disclosure of terms and conditions of share-based payment arrangement [line items]    
Units outstanding, beginning of year (in shares) 491,896 912,281
Units cancelled (in shares) (184,028) (283,840)
Settled in cash / Redeemed (in shares) (307,868) (136,545)
Units outstanding, end of year (in shares) 0 491,896
Units vested, end of year (in shares) 0 467,991