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Income Taxes - Significant Components of Provision for Income Taxes for Continuing Operations (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Current [Abstract]      
Federal $ 10,506 $ 6,523 $ 5,357
State 2,774 2,473 1,199
Total current 13,280 8,996 6,556
Deferred [Abstract]      
Federal (38) 3,730 3,771
State (220) 921 1,042
Total deferred (258) 4,651 4,813
Total income tax provision $ 13,022 $ 13,647 $ 11,369