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Stock-Based Compensation - Stock-Based Compensation Expense and Related Tax Benefit (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Share-based Payment Arrangement, Noncash Expense [Abstract]      
Stock options $ 1,371 $ 1,944 $ 1,770
Restricted stock units 21,391 22,285 24,560
Unrestricted stock awards 856 824 630
Phantom stock units 3,242 3,720 3,301
Total stock-based compensation 26,860 28,773 30,261
Related tax benefit $ 4,991 $ 5,086 $ 5,390