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Income Taxes - Schedule of Difference Between Provision for Income Taxes and Amounts Computed by Applying Statutory Federal Income Tax Rate to Income Before Income Taxes (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Income Tax Disclosure [Abstract] |  |  |
Income tax at federal statutory rate | $ 7,612 | $ 14,317 | $ 4,725
State income taxes, net of federal tax effect | 625 | 1,499 | 34
Tax-exempt interest income | (121) | (105) | (20)
Income from life insurance | (283) | (196) | (82)
Merger-related expenses | 0 | 250 | 174
Other permanent differences | 500 | (64) | (31)
Income Tax Expense Benefit Continuing And Discontinuing | $ 8,333 | $ 15,701 | $ 4,800
Income tax at federal statutory rate | 21.00% | 21.00% | 21.00%
State income taxes, net of federal tax effect | 1.70% | 2.20% | 0.20%
Tax-exempt interest income | (0.30%) | (0.20%) | (0.10%)
Income from life insurance | (0.80%) | (0.30%) | (0.40%)
Merger-related expenses | 0.00% | 0.40% | 0.80%
Other permanent differences | 1.40% | (0.10%) | (0.10%)
Provision for income taxes | 23.00% | 23.00% | 21.40%

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- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32687-109319 + Details
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- Definition 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 other adjustments. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32687-109319 + Details
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