XML 101 R86.htm IDEA: XBRL DOCUMENT v3.22.0.1
Stock-Based Compensation Plans - Summary of Restricted Stock Activity (Details) - Restricted Stock - $ / shares
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Restricted Stock      
Outstanding at beginning of year (in shares) 409,110    
Granted (in shares) 102,410    
Vested (in shares) (67,673)    
Forfeited (in shares) (37,881)    
Outstanding at end of year (in shares) 405,966 409,110  
Weighted-average Grant Date Fair Value      
Outstanding at beginning of year (in dollars per share) $ 69.21    
Granted (in dollars per share) 83.91 $ 71.48 $ 98.78
Vested (in dollars per share) 85.39    
Forfeited (in dollars per share) 47.98    
Outstanding at end of year (in dollars per share) $ 72.20 $ 69.21