Income Taxes - Schedule of Deferred Tax Assets and Deferred Tax Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Deferred tax assets:
Allowance for credit losses and nonperforming assets valuation allowance	$ 251,494	$ 233,879
Net unrealized losses on AFS debt and transferred securities	142,141	223,814
Stock compensation and other accrued compensation	46,825	41,118
Lease liabilities	40,714	27,644
Tax credit and capital loss carryforwards	51,193	11,122
Basis difference in investments	16,430	17,708
Nonaccrual loans’ interest income	8,306	8,809
State taxes	6,548	5,808
FDIC special assessment charge	2,615	16,843
Other	13,435	14,665
Total deferred tax assets	579,701	601,410
Valuation allowance	(13,353)	0
Total deferred tax assets, net of valuation allowance	566,348	601,410
Deferred tax liabilities:
Operating lease right-of-use assets	37,225	25,647
Basis difference in investments	26,203	25,587
Net unrealized gains on derivative hedges	14,704	0
Equipment lease financing	7,206	10,395
Other	7,006	26,437
Total deferred tax liabilities	92,344	88,066
Net deferred tax assets	$ 474,004	$ 513,344