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Share-Based Compensation Plans - Summary of Stock Option Activity (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
12 Months Ended
Feb. 28, 2021
Feb. 29, 2020
Feb. 28, 2019
Intrinsic Value       
Exercises (in shares) $ 2,800 $ 9,100 $ 6,400
Stock Option Officers Employees And Consultants      
Options       
Outstanding at the beginning of the period (in shares) 69    
Exercises (in shares) (21)    
Outstanding at the end of the period (in shares) 48 69  
Exercisable at the end of the period (in shares) 48    
Weighted Average Exercise Price (per share)       
Outstanding at the beginning of the period (in dollars per share) $ 71.78    
Exercises (in dollars per share) 74.76    
Outstanding at the end of the period (in dollars per share) 70.42 $ 71.78  
Exercisable at the end of the period (in dollars per share) $ 70.42    
Weighted Average Remaining Contractual Term (in years)      
Weighted average remaining contractual term (in years) 2 years 6 months 3 years 2 months 12 days  
Exercisable at the end of the period (in shares) 2 years 6 months    
Intrinsic Value       
Outstanding at the beginning of the period (in shares) $ 6,333    
Exercises (in shares) 2,782    
Outstanding at the end of the period (in shares) 6,866 $ 6,333  
Exercisable at the end of the period (in shares) $ 6,866