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Income Taxes - Reconciliation of Statutory Income Tax Rate to Consolidated Effective Income Tax Rate (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Income Tax Disclosure [Abstract] |  |  |
Federal income tax at statutory rate, rate | 21.00% | 21.00% | 21.00%
State franchise taxes, net of federal benefit, rate | 7.30% | 8.00% | 8.30%
State impact of BOLI surrender, net of federal benefit, rate | 0.00% | 0.50% | 0.00%
Federal impact of BOLI surrender and MEC penalty, rate | 0.00% | 1.70% | 0.00%
Tax-exempt income, rate | (1.80%) | (1.60%) | (1.00%)
Tax credits, rate | (0.80%) | (0.40%) | (0.50%)
Other, net, rate | 0.30% | 0.60% | 0.50%
Provision for income taxes, rate | 26.00% | 29.80% | 28.30%
Federal income tax at statutory rate | $ 56,960 | $ 66,241 | $ 68,953
State franchise taxes, net of federal benefit | 19,698 | 25,139 | 27,256
State impact of BOLI surrender, net of federal benefit | 0 | 1,489 | 0
Federal impact of BOLI surrender and MEC penalty | 0 | 5,486 | 0
Tax-exempt income | (4,919) | (5,146) | (3,290)
Tax credits | (2,184) | (1,239) | (1,617)
Other, net | 967 | 2,029 | 1,620
Provision for income taxes | $ 70,522 | $ 93,999 | $ 92,922

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