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Note 12 - Income Taxes - Income Tax Reconciliation (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Tax provision at Federal statutory rate, amount | $ 84,752 | $ 99,233 | $ 80,187
Tax provision at Federal statutory rate, percent | 21.00% | 21.00% | 21.00%
State income taxes, net of Federal income tax benefit, amount | $ 36,107 | $ 44,837 | $ 37,602
State income taxes, net of Federal income tax benefit, percent | 9.00% | 9.50% | 9.80%
Excess deduction for stock option and RSUs, amount | $ (586) | $ (140) | $ (20)
Excess deduction for stock option and RSUs, percent | (0.10%) | 0.00% | 0.00%
Low income housing and other tax credits, amount | $ (73,715) | $ (34,231) | $ (32,795)
Low income housing and other tax credits, percent | (18.30%) | (7.20%) | (8.60%)
Other, net, amount | $ 2,900 | $ 2,195 | $ (1,435)
Other, net, percent | 0.70% | 0.40% | (0.30%)
Total income tax expense, amount | $ 49,458 | $ 111,894 | $ 83,539
Total income tax expense, percent | 12.30% | 23.70% | 21.90%

X
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