Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Detail) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Expense (Benefit), Continuing Operations, Income Tax Reconciliation [Abstract]
Tax at statutory rate, Amount	$ 36,292	$ 18,943	$ 27,478
Income Tax Reconciliation, Bank Owned Life Insurance Income	(1,351)	(1,376)	(1,260)
Tax-exempt interest income, net, Amount	(846)	(1,117)	(1,298)
Tax credits, Amount	(127)	(44)	(7)
Other, Amount	266	195	374
Total tax provision (benefit), Amount	$ 34,560	$ 16,756	$ 25,516
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]
Tax at statutory rate, Pretax Income	21.00%	21.00%	21.00%
Income from bank owned life insurance, Pretax Income	(1.00%)	(1.00%)	(1.00%)
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount	$ 326	$ 155	$ 229
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent	0.00%	0.00%	0.00%
Tax-exempt interest income, net, Pretax Income	0.00%	(1.00%)	(1.00%)
Tax credits, Pretax Income	0.00%	0.00%	0.00%
Other, Pretax Income	0.00%	0.00%	0.00%
Total tax provision (benefit), Pretax Income	20.00%	19.00%	19.00%

Effective Income Tax Rate Reconciliation Bank Owned Life Insurance

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Income Tax Reconciliation, Bank Owned Life Insurance Income

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

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

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Percentage 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 other adjustments.

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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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