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Equity Compensation Plan - Summary of Restricted Share Units Activity, Performance Share Activity and Restricted Stock Activity (Detail) - $ / shares
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Restricted Share Units      
Shares      
Nonvested shares, Beginning Balance 200,379 199,424 218,930
Granted, shares 134,895 97,144 78,576
Vested, shares (30,665) (53,163) (78,958)
Forfeited, shares (104,573) (34,890) (6,830)
Shares settled for cash, shares (16,878) (8,136) (12,294)
Nonvested Shares, Ending Balance 183,158 200,379 199,424
Weighted- Average Grant Date Fair Value      
Nonvested, Beginning Balance (in dollars per share) $ 67.83 $ 72.72 $ 57.87
Granted (in dollars per share) 75.97 59.27 68.48
Vested (in dollars per share) 82.14 68.42 44.44
Forfeited (in dollars per share) 70.59 71.14 72.99
Shares settled for cash (in dollars per share) 82.50 68.35 43.85
Nonvested, Ending Balance (in dollars per share) $ 70.07 $ 67.83 $ 72.72
Performance Shares - Equity      
Shares      
Nonvested shares, Beginning Balance 86,596 252,660 199,655
Granted, shares 0 0 116,342
Vested, shares (49,586) 0 (75,312)
Forfeited, shares (6,978) (33,218) (12,130)
Achievement level adjustment, shares (30,032) (132,846) 24,105
Nonvested Shares, Ending Balance 0 86,596 252,660
Weighted- Average Grant Date Fair Value      
Nonvested, Beginning Balance (in dollars per share) $ 77.15 $ 81.46 $ 75.87
Granted (in dollars per share) 0 0 77.15
Vested (in dollars per share) 77.15 0 49.68
Forfeited (in dollars per share) 77.15 81.91 82.26
Achievement level adjustment (in dollars per share) 77.15 93.61 49.68
Nonvested, Ending Balance (in dollars per share) $ 0 $ 77.15 $ 81.46
Performance Shares - Liability      
Shares      
Nonvested shares, Beginning Balance 93,588 0  
Granted, shares 160,206 95,924  
Vested, shares 0 0  
Forfeited, shares (69,272) (2,336)  
Nonvested Shares, Ending Balance 184,522 93,588 0
Weighted- Average Grant Date Fair Value      
Nonvested, Beginning Balance (in dollars per share) $ 105.91    
Granted (in dollars per share) 174.16 $ 105.91  
Vested (in dollars per share) 0 0  
Forfeited (in dollars per share) 177.86 105.91  
Nonvested, Ending Balance (in dollars per share) $ 177.86 $ 105.91