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Stock-Based Compensation - Status of Nonvested Restricted Stock, Stock Grants, Stock Units and Performance Shares (Details) - $ / shares
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Restricted Stock Units, Stock Grants, and Stock Units      
Nonvested shares      
Balance at the beginning of the period (in shares) 253,156    
Granted (in shares) 174,791 152,345 118,403
Vested (in shares) (101,216)    
Forfeited (in shares) (9,144)    
Balance at the end of the period (in shares) 317,587 253,156  
Weighted-Average Grant-Date Fair Value      
Balance at the beginning of the period (in dollars per share) $ 79.37    
Granted (in dollars per share) 69.66 $ 76.72 $ 71.70
Vested (in dollars per share) 84.52    
Forfeited (in dollars per share) 76.56    
Balance at the end of the period (in dollars per share) $ 73.91 $ 79.37  
Vested awards outstanding at end of year (in shares) 78,912    
Vested awards outstanding at end of year (in dollars per share)    
Number of nonvested awards to be settled in cash (in shares) 69,413    
Performance Shares      
Nonvested shares      
Balance at the beginning of the period (in shares) 280,682    
Granted (in shares) 208,736 161,840 122,830
Vested (in shares) (136,034)    
Forfeited (in shares) (22,690)    
Balance at the end of the period (in shares) 330,694 280,682  
Weighted-Average Grant-Date Fair Value      
Balance at the beginning of the period (in dollars per share) $ 92.16    
Granted (in dollars per share) 77.63 $ 82.42 $ 104.74
Vested (in dollars per share) 103.30    
Forfeited (in dollars per share) 78.29    
Balance at the end of the period (in dollars per share) $ 78.91 $ 92.16  
Vested awards outstanding at end of year (in shares) 136,034    
Vested awards outstanding at end of year (in dollars per share)