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Share-Based Compensation Plans (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Stock Options [Member]      
Share-based Compensation Arrangements by Share-based Payment Award, Options, Additional Disclosures [Abstract]      
Options exercised, aggregate intrinsic value $ 496 $ 318 $ 761
Restricted Stock [Member]      
Share-based Compensation Arrangements by Share-based Payment Award, Restricted Stock, Nonvested, Number of Shares [Roll Forward]      
Non-vested shares awarded, beginning of period (in shares) 420,234 427,178 527,607
Non-vested shares that were granted during the period (in shares) 247,917 236,750 145,724
Non-vested shares that vested during period (in shares) (166,965) (225,527) (114,201)
Non-vested shares that forfeited during period (in shares) (11,632) (18,167) (131,952)
Non-vested shares awarded, end of period (in shares) 489,554 420,234 427,178
Share-based Compensation Arrangements by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]      
Weighted Average Grant Date Fair Value, Granted $ 73.01 $ 83.49 $ 76.74
Weighted Average Grant Date Fair Value, Vested 94.96 83.50 61.28
Weighted average grant date fair value non-vested share awards forfeited (in dollars per share) $ 75.83 $ 83.10 $ 83.69
Share-based Compensation Costs, Including Costs That May Be Recognized As Future Expense [Abstract]      
Share-based Compensation Expense Recognized $ 9,300 $ 16,000 $ 15,100
Unrecognized compensation cost of unvested awards, for future periods 12,600    
Unrecognized compensation cost of unvested awards, Amount to be expensed in 2022 8,300    
Unrecognized compensation cost of unvested awards, Amount to be expensed in 2023 4,100    
Unrecognized compensation cost of unvested awards, Amount to be expensed in 2024 $ 224    
Number of shares with required performance obligations 101,495    
Restricted Stock Units (RSUs) [Member]      
Share-based Compensation Arrangements by Share-based Payment Award, Restricted Stock, Nonvested, Number of Shares [Roll Forward]      
Non-vested shares awarded, beginning of period (in shares) 69,669 46,689 0
Non-vested shares that were granted during the period (in shares) 17,570 22,980 46,689
Non-vested shares that vested during period (in shares) 0 0 0
Non-vested shares that forfeited during period (in shares) 0 0 0
Non-vested shares awarded, end of period (in shares) 87,239 69,669 46,689
Share-based Compensation Arrangements by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]      
Weighted Average Grant Date Fair Value, Granted $ 88.25 $ 77.36 $ 87.40
Weighted Average Grant Date Fair Value, Vested 0 0 0
Weighted average grant date fair value non-vested share awards forfeited (in dollars per share) $ 0 $ 0 $ 0