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Income Taxes - Reconciliation Between The Amount Of Reported Total Income Tax Expense And The Amount Computed By Multiplying The Applicable Statutory Income Tax Rate (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Tax expense at statutory rate									$ 20,397	$ 10,505	$ 11,135
Applicable statutory federal income tax rate									21.00%	21.00%	21.00%
Increase (decrease) in taxes resulting from:
State tax, net of federal income tax									$ 6,362	$ 3,285	$ 3,056
Bank owned life insurance									(862)	(793)	(1,475)
ESOP fair market value adjustment									102	42	187
Incentive stock options									6	18	81
Merger related costs									0	147	0
Excess tax benefits from employee share based payments									0	0	(110)
Other, net									468	(167)	(87)
Income tax expense	$ 5,810	$ 6,078	$ 7,639	$ 6,946	$ 4,418	$ 3,095	$ 3,899	$ 1,625	$ 26,473	$ 13,037	$ 12,787

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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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 reported income tax expense (benefit) in excess of (less than) expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operation, attributable to nondeductible expense for award under share-based payment arrangement. Includes, but is not limited to, expense determined to be nondeductible upon grant or after for award under share-based payment arrangement.

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