Income Taxes (Details 2) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Income Tax Disclosure [Abstract]
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Provision for Loan Losses	$ 90,531	$ 80,653
Interest on nonaccrual loans	4,866	2,649
Business Combination, Acquired Receivable, Fair Value	96,844	0
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Employee Compensation	5,256	5,011
Deferred tax assets, unrealized losses on other real estate owned	663	298
Deferred Tax Assets, State Taxes	0	6,743
Deferred Tax Assets, Operating Loss Carryforwards	282,127	20,178
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Accrued Liabilities	106,834	31,336
Unrealized Loss From FDIC Assisted Acquisitions	767	876
Deferred Tax Assets, Equity Method Investments	0	2,322
Deferred Tax Assets, Goodwill and Intangible Assets	81,607	0
Tax Credit Carryforward, Deferred Tax Asset	80,610	0
Lease liability	45,742	41,038
Deferred Tax Asset, Core Deposit And Customer Relationship Intangibles	0	1,428
Deferred Tax Assets, Unrealized Losses on Available-for-Sale Securities, Gross	101,602	224,680
Debt Securities, Held-to-maturity, Transfer, Unrealized Gain (Loss)	71,197	78,330
Deferred Tax Assets, Other	1,582	2,837
FDIC Indemnification Asset	9,273	0
Deferred Tax Assets, Gross	979,501	498,379
Deferred Tax Assets, Valuation Allowance	(21,061)	(26,687)
Deferred Tax Assets, Net of Valuation Allowance	958,440	471,692
Deferred Tax Liabilities, Goodwill and Intangible Assets	29,885	0
Deferred Tax Liabilities, Tax Deferred Income	1,039	1,341
Deferred Tax Liabilities, Property, Plant and Equipment	6,682	4,186
Deferred Tax Liabilities, Regulatory Assets	4,717	602
Deferred Tax Liabilities, Subordinated Debt	15,862	15,776
Deferred Tax Liabilities, Investment in Noncontrolled Affiliates	9,953	0
Deferred Tax Liabilities, Goodwill	0	9,229
Deferred Tax Liabilities, Leasing Arrangements	110,522	121,978
Unrealized Gain (Loss) on Credit-linked Notes	2,212	0
Tax mark-to-market on loans	539	1,711
ROU assets	37,918	35,021
Deferred Tax Liabilities, Gross	219,329	189,844
Deferred Tax Asset (Liability)	$ 739,111	$ 281,848