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Share-Based Compensation Plans - Narrative (Details) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 9 Months Ended
May 31, 2023
Nov. 30, 2023
Share-based compensation plans    
Expected recognition period for unrecognized share-based compensation   1 year 10 months 24 days
Target achievement for performance condition awards, as a percentage   0.00%
Restricted Stock    
Share-based compensation plans    
Number of awards granted (in shares) 252,522  
Unrecognized share-based compensation   $ 25.8
Service Condition Awards    
Share-based compensation plans    
Number of awards granted (in shares) 94,807  
Grant date fair value of shares granted in period (in dollars per share) $ 110.85  
Market Condition Awards    
Share-based compensation plans    
Number of awards granted (in shares) 126,204  
Grant date fair value of shares granted in period (in dollars per share) $ 80.50  
Performance Condition Awards    
Share-based compensation plans    
Number of awards granted (in shares) 126,318  
Grant date fair value of shares granted in period (in dollars per share) $ 110.85