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Income Taxes - Reconciliation of Effective Income Tax (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Income tax expense at Federal statutory rate	$ 25,307	$ 11,168	$ 17,020
State tax, net of Federal tax benefit	960	359	357
Tax-exempt instruments	(1,929)	(1,785)	(1,745)
Federal tax credits and other benefits	(1,630)	(1,928)	(1,961)
Effects of BOLI	(474)	(827)	(368)
Tax benefit of CARES Act carryback	0	(967)	0
Other, net	238	590	185
Income tax expense	$ 22,472	6,610	$ 13,488
Gross tax credits related to the Company's CDEs		$ 9,800

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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 free bank owned life insurance income recorded

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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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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 income (loss) exempt from income taxes.

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