Income Taxes (Details 2) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Income Tax Disclosure [Abstract]
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Provision for Loan Losses	$ 78,096	$ 90,531
Interest on nonaccrual loans	4,569	4,866
Business Combination, Acquired Receivable, Fair Value	65,100	96,844
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Employee Compensation	4,902	5,256
Deferred tax assets, unrealized losses on other real estate owned	335	663
Deferred Tax Assets, Operating Loss Carryforwards	292,843	282,127
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Accrued Liabilities	102,232	106,834
Unrealized Loss From FDIC Assisted Acquisitions	413	767
Deferred Tax Assets, Goodwill and Intangible Assets	73,863	81,607
Tax Credit Carryforward, Deferred Tax Asset	130,522	80,610
Lease liability	35,447	45,742
Deferred Tax Assets, Unrealized Losses on Available-for-Sale Securities, Gross	79,977	101,602
Debt Securities, Held-to-maturity, Transfer, Unrealized Gain (Loss)	62,162	71,197
Deferred Tax Assets, Other	3,159	1,582
FDIC Indemnification Asset	7,028	9,273
Deferred Tax Assets, Gross	940,898	979,501
Deferred Tax Assets, Valuation Allowance	(19,015)	(21,061)
Deferred Tax Assets, Net of Valuation Allowance	921,883	958,440
Deferred Tax Liabilities, Goodwill and Intangible Assets	27,292	29,885
Deferred Tax Liabilities, Tax Deferred Income	2,193	1,039
Deferred Tax Liabilities, Property, Plant and Equipment	5,710	6,682
Deferred Tax Liabilities, Regulatory Assets	553	4,717
Deferred Tax Liabilities, Subordinated Debt	14,789	15,862
Deferred Tax Liabilities, Investment in Noncontrolled Affiliates	9,695	9,953
Deferred Tax Liabilities, Leasing Arrangements	110,415	110,522
Unrealized Gain (Loss) on Credit-linked Notes	1,452	2,212
Tax mark-to-market on loans	0	539
ROU assets	29,197	37,918
Deferred Tax Liabilities, Gross	201,296	219,329
Deferred Tax Asset (Liability)	720,587	739,111
Deferred Tax Assets, Investments	$ 250	$ 0