Income Taxes (Details 2) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Provision for Loan Losses	$ 54,664	$ 58,375
Interest on nonaccrual loans	4,550	4,389
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Employee Compensation	5,809	6,015
Deferred Tax Assets, Property, Plant and Equipment	3,478	4,506
Deferred tax assets, unrealized losses on other real estate owned	263	263
Deferred Tax Assets, State Taxes	5,721	6,570
Deferred Tax Assets, Operating Loss Carryforwards	39,517	68,026
Deferred Tax Assets, Capital Loss Carryforwards	0	4,212
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Accrued Liabilities	28,158	35,750
Deferred Tax Assets, Other	0	4,887
Unrealized Loss From FDIC Assisted Acquisitions	1,678	3,559
Deferred Tax Assets, Investments	5,052	0
Deferred Tax Assets, Unrealized Losses on Available-for-Sale Securities, Gross	0	2,435
Deferred Tax Assets, Equity Method Investments	5,953	4,896
Deferred Tax Assets, Goodwill and Intangible Assets	5,434	10,418
Tax Credit Carryforward, Deferred Tax Asset	3,426	5,237
Lease liability	40,533
Deferred Tax Assets, Gross	204,236	219,538
Deferred Tax Assets, Valuation Allowance	(46,371)	(78,407)
Deferred Tax Assets, Net of Valuation Allowance	157,865	141,131
Deferred Tax Liabilities, Goodwill and Intangible Assets	9,853	15,159
Deferred Tax Liabilities, Tax Deferred Income	5,330	7,275
Deferred Tax Liabilities, Other Comprehensive Income	30,438	0
Deferred Tax Liabilities, Regulatory Assets	647	658
Tax mark-to-market	0	1,636
Deferred Tax Liabilities, Subordinated Debt	20,183	23,164
Deferred Tax Liabilities, Leasing Arrangements	83,878	75,750
ROU assets	36,359
Deferred Tax Liabilities, Other	2,830	0
Deferred Tax Liabilities, Gross	189,518	123,642
Deferred Tax Asset (Liability)	$ (31,653)	$ 17,489