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Income Taxes - Effective Income Tax Reconciliation (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Income Tax Disclosure [Abstract] |  |  |
Income tax expense at statutory federal income tax rate | $ 146,194 | $ 202,477 | $ 207,765
State income tax expense, net of federal income tax benefit | 28,415 | 21,981 | 38,452
Tax credits and related benefits, net of amortization (as applicable) | (21,037) | (9,629) | (8,717)
Income not subject to tax | (10,477) | (9,346) | (10,455)
FDIC premiums | 8,589 | 5,517 | 4,111
Executive compensation | 3,575 | 2,152 | 1,096
Excess tax benefit from share-based compensation | (1,416) | (3,153) | (3,084)
Other, net | 178 | (3,724) | (275)
Total income tax expense | $ 154,021 | $ 206,275 | $ 228,893
Effective tax rate | 22.10% | 21.40% | 23.10%

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