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Share-Based Compensation Plans - Narrative (Details) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 6 Months Ended
Aug. 31, 2025
May 31, 2025
Aug. 31, 2025
Aug. 20, 2025
Feb. 29, 2024
Share-based compensation plans          
Unrecognized share-based compensation $ 26.6   $ 26.6    
Expected recognition period for unrecognized share-based compensation     2 years 1 month 6 days    
Target achievement for performance condition awards, as a percentage         0.00%
The 2025 Plan          
Share-based compensation plans          
Number of awards granted (in shares) 0        
Shares reserved for future issuance (in shares)       1,155,478  
Service Condition Awards          
Share-based compensation plans          
Number of awards granted (in shares)   272,909      
Grant date fair value of shares granted in period (in dollars per share)   $ 53.28      
Performance Shares          
Share-based compensation plans          
Number of awards granted (in shares)   320,027      
Performance Condition Awards          
Share-based compensation plans          
Number of awards granted (in shares)   191,946      
Grant date fair value of shares granted in period (in dollars per share)   $ 53.28      
Market Condition Awards          
Share-based compensation plans          
Number of awards granted (in shares)   128,081      
Grant date fair value of shares granted in period (in dollars per share)   $ 37.24