v3.25.4
CAPITAL STOCK - Schedule of Common Shares Purchases for Cancellation (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]      
Aggregate cost (including transaction fees and excluding share buyback taxes) of Common Shares repurchased for cancellation $ 150.7    
Aggregate cost (including transaction fees and excluding share buyback taxes) of Common Shares repurchased for cancellation $ 153.4 $ 152.0 $ 35.6
Number of common shares repurchased for cancellation (in shares) 1.3 3.2 2.6
Weighted average price per share for repurchases (in dollars per share) $ 111.27 $ 47.15 $ 13.83
2023 NCIB      
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]      
Accrual for repurchase of stock under automatic share purchase plan     $ 2.7
NCIB ASPP      
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]      
Number of common shares repurchased for cancellation (in shares) 0.7 0.5 0.9