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Income Taxes - Components of Income Tax Expense (Benefit) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Current:      
Federal $ 59,450 $ 63,932 $ 57,354
State 5,822 8,875 (1,344)
Current Income Tax Expense (Benefit), Total 65,272 72,807 56,010
Deferred:      
Federal 5,050 2,842 2,804
State 623 295 (487)
Deferred Income Tax Expense (Benefit) 5,673 3,137 2,317
Income Tax Expense (Benefit), Total $ 70,945 $ 75,944 $ 58,327