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Equity Compensation Plans and Share-Based Compensation - Share-based Compensation Allocation of Period Costs (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]      
Gross compensation costs: $ 5,150 $ 2,914 $ 8,680
Income tax benefits: (205) (995) (416)
Net compensation expense 4,945 1,919 8,264
Stock options      
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]      
Gross compensation costs: 0 15 43
Income tax benefits: 0 (94) (114)
Nonvested “restricted” stock      
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]      
Gross compensation costs: 5,150 2,899 8,637
Income tax benefits: $ (205) $ (901) $ (302)