v3.26.1
CAPITAL STOCK - Narrative (Details) - USD ($)
shares in Thousands, $ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Oct. 29, 2025
Oct. 30, 2024
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Treasury stock, share-based compensation plan settlement (in shares) 2 30 1,600 2,000      
Treasury stock, common $ 20.7   $ 20.7   $ 153.8    
Share-based compensation cash settlement 0.8 $ 0.0 $ 326.3 $ 156.0      
RSUs              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Vesting period     3 years        
RSUs | Share-Based Payment Arrangement, Tranche One              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Vesting percentage     33.30%        
RSUs | Share-Based Payment Arrangement, Tranche Two              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Vesting percentage     33.30%        
RSUs | Share-Based Payment Arrangement, Tranche Three              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Vesting percentage     33.30%        
Employee Stock Option              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Vesting period     4 years        
Employee Stock Option | Share-Based Payment Arrangement, Tranche One              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Vesting percentage     25.00%        
Employee Stock Option | Share-Based Payment Arrangement, Tranche Two              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Vesting percentage     25.00%        
Employee Stock Option | Share-Based Payment Arrangement, Tranche Three              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Vesting percentage     25.00%        
Employee Stock Option | Share-Based Payment Arrangement, Tranche Four              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Vesting percentage     25.00%        
PSUs              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Share-based compensation arrangement by share-based payment award, award performance period     3 years        
PSUs | Minimum              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Share-based payment award, awards granted, percentage of target     0.00%        
PSUs | Maximum              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Share-based payment award, awards granted, percentage of target     200.00%        
Share-Based Payment Arrangement              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Share-based compensation cash settlement $ 0.8 $ 0.0 $ 326.3 $ 156.0      
Treasury stock              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Treasury stock, common (in shares) 200   200   1,800    
2024 NCIB              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Share repurchase program, authorized, number of shares (in shares)             8,600
2025 NCIB              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Share repurchase program, authorized, number of shares (in shares)           5,700  
Share repurchase program, remaining authorized, number of shares (in shares) 5,500   5,500