Income Taxes - Reconciliation of the Provision for Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Effective Income Tax Rate Reconciliation, Amount [Abstract]
Income tax expense computed at statutory rate	$ 12,983	$ 27,129	$ 17,872
Increases (decreases) resulting from:
State income taxes, net of federal tax benefit	3,931	4,985	4,902
Federal jobs credits	(3,177)	(3,089)	(3,164)
Tax exempt interest	(324)	(323)	(399)
Share-based compensation	1,072	1,323	298
Fines and penalties	1,294	20	20
Other, net	181	459	986
Tax provision	$ 15,960	30,504	20,515
Amounts reclassified to fines and penalties caption for comparative purpose (less than)		$ 100	$ 100

Effective Income Tax Rate Reconciliation Increases (Decreases)

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Effective Income Tax Rate Reconciliation, Nondeductible Expense, Fines and Penalty

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Effective Income Tax Rate Reconciliation, Nondeductible Expense, Fines and Penalty, Amount

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Amount of difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operation, attributable to expense for award under share-based payment arrangement. Excludes expense determined to be nondeductible upon grant or after for award under share-based payment arrangement.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to noncontrolling interest income (loss) exempt from income taxes.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to tax credits. Including, but not limited to, research credit, foreign tax credit, investment tax credit, and other tax credits.

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