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Income Taxes - Summary of Income Tax Reconciliation (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Amount      
U.S. federal statutory tax rate $ 156,213 $ 92,089 $ 142,450
Increase (decrease) due to:      
State income tax expense, net of federal tax effect 53,689 30,736 50,787
Tax credits      
New market tax credits (50,699) (28,041) (18,722)
Other tax credits (5,908) (4,063) (4,286)
Nontaxable or non-deductible items      
Disallowed FDIC insurance premiums 10,195 11,071 7,950
Other nontaxable or non-deductible (4,029) (1,075) (1,291)
Changes in unrecognized tax benefits 0 (46,431) 0
Other adjustments      
Federal tax refund (11,417) 0 0
Other adjustments (2,157) 3,962 2,933
Income Tax Expense (Benefit), Total $ 145,887 $ 58,248 $ 179,821
Percent      
Statutory federal income tax rate 21.00% 21.00% 21.00%
Increase (decrease) due to:      
State income tax expense, net of federal tax effect 7.20% 7.00% 7.50%
Tax credits      
New market tax credits (6.80%) (6.40%) (2.80%)
Other tax credits (0.80%) (0.90%) (0.60%)
Nontaxable or non-deductible items      
Disallowed FDIC insurance premiums 1.30% 2.50% 1.20%
Other nontaxable or non-deductible (0.50%) (0.20%) (0.20%)
Changes in unrecognized tax benefits 0.00% (10.60%) 0.00%
Other adjustments      
Federal tax refund (1.50%) 0.00% 0.00%
Other adjustments (0.30%) 0.90% 0.40%
Effective Income Tax Rate Reconciliation, Percent 19.60% 13.30% 26.50%