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Stock-Based Compensation Expense and Related Tax Benefit (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Stock options $ 284 $ 340
Restricted stock units 5,584 5,931
Unrestricted stock awards 259 227
Total stock-based compensation 6,317 7,615
Related tax benefit 1,369 1,363
Phantom Share Units (PSUs) [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Phantom stock units $ 190 $ 1,117