v3.26.1
Capital Stock - Additional Information (Details) - USD ($)
$ in Millions
3 Months Ended
May 31, 2026
May 31, 2025
May 08, 2026
Feb. 28, 2026
May 08, 2025
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Stock Repurchase Program, Number of Shares Authorized to be Repurchased     26,800,000   27,900,000
Percentage of Entity Public Float as of May 5, 2025     4.58%   4.70%
Stock Repurchased During Period, Shares 2,600,000        
Common shares repurchased (note 6) $ (10.0) $ (10.0)      
Common shares or awards outstanding 586,061,407     587,431,120  
Capital Stock and Additional Paid-in Capital          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Stock Repurchased During Period, Shares 2,587,000        
Share repurchase $ 12.9 12.8      
Common shares or awards outstanding 586,061,000     587,431,000  
Treasury stock - shares repurchase $ (12.9)        
Deficit          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Stock repurchased and charged against retained earnings $ 2.9 $ 2.8