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Employee Benefits - Summary of Equity-Based Awards for Employees (Details)
 9 Months Ended
Sep. 30, 2022
$ / shares
shares
Common Stock Awards  
Awards  
Nonvested common stock awards, Beginning balance (in shares) | shares 199,353
Granted (in shares) | shares 109,189
Vested (in shares) | shares (147,095)
Forfeited/Cancelled (in shares) | shares (1,057)
Nonvested common stock awards, Ending balance (in shares) | shares 160,390
Weighted Average Grant Date Fair Value Per Share  
Nonvested performance-based stock awards, Beginning balance (in USD per share) | $ / shares $ 68.99
Granted (in USD per share) | $ / shares 89.32
Vested (in USD per share) | $ / shares 74.77
Forfeited/Cancelled (in USD per share) | $ / shares 81.61
Nonvested performance-based stock awards, Ending balance (in USD per share) | $ / shares $ 74.44
Performance-Based Stock Awards  
Awards  
Nonvested performance-based stock awards/units, Beginning balance (in shares) | shares 143,401
Granted (in shares) | shares 54,585
Forfeited/Cancelled (in shares) | shares 0
Vested (in shares) | shares (71,933)
Nonvested performance-based stock awards/units, Ending balance (in shares) | shares 126,053
Weighted Average Grant Date Fair Value Per Share  
Nonvested performance-based stock awards/units, Beginning balance (in USD per share) | $ / shares $ 81.30
Granted (in USD per share) | $ / shares 102.98
Vested (in USD per share) | $ / shares 59.07
Forfeited/Cancelled (in USD per share) | $ / shares 0
Nonvested performance-based stock awards/units, Ending balance (in USD per share) | $ / shares $ 103.37
Performance-Based Restricted Stock Units  
Awards  
Nonvested performance-based stock awards/units, Beginning balance (in shares) | shares 8,252
Granted (in shares) | shares 16,618
Forfeited/Cancelled (in shares) | shares (404)
Vested (in shares) | shares (8,061)
Nonvested performance-based stock awards/units, Ending balance (in shares) | shares 16,405
Weighted Average Grant Date Fair Value Per Share  
Nonvested performance-based stock awards/units, Beginning balance (in USD per share) | $ / shares $ 126.89
Granted (in USD per share) | $ / shares 80.55
Vested (in USD per share) | $ / shares 126.89
Forfeited/Cancelled (in USD per share) | $ / shares 102.46
Nonvested performance-based stock awards/units, Ending balance (in USD per share) | $ / shares $ 80.55