Income Taxes (Details) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Current Income Tax Expense (Benefit), Continuing Operations [Abstract]
Federal	$ 104,141,000	$ 125,016,000	$ 98,082,000
Current State and Local Tax Expense (Benefit)	12,870,000	11,798,000	19,270,000
Total current tax expense (benefit)	117,011,000	136,814,000	117,352,000
Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract]
Federal	15,082,000	(12,149,000)	(45,450,000)
State	4,658,000	(83,000)	(12,865,000)
Deferred tax (expense) benefit	19,740,000	(12,232,000)	(58,315,000)
Income tax expense (benefit)	136,751,000	124,582,000	59,037,000
Effective Income Tax Rate Reconciliation, Amount [Abstract]
Income tax expense (benefit) at statutory rate	146,474,000	136,900,000	77,985,000
State excise tax expense, net of federal tax effect	13,847,000	9,255,000	5,059,000
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Amount	5,481,000	2,149,000	1,297,000
Tax-exempt securities	(18,730,000)	(15,243,000)	(13,706,000)
Federal tax credits	(5,019,000)	(4,712,000)	(3,717,000)
Bank owned life insurance	(4,599,000)	(4,413,000)	(4,759,000)
Insurance premiums	(36,000)	(273,000)	(272,000)
Excess tax benefits associated with equity compensation	(3,027,000)	(2,475,000)	(417,000)
Other items	$ 2,360,000	3,394,000	(2,433,000)
Federal income tax statutory rate	21.00%
Deferred Tax Assets, Net [Abstract]
Loan loss allowance	$ 77,015,000	66,785,000
Loans	10,576,000	14,778,000
Insurance	817,000	759,000
Accrued liability for supplemental retirement agreements	7,595,000	7,612,000
Restricted stock and stock options	7,795,000	9,148,000
Securities	67,286,000	0
Leases	35,589,000	26,476,000
Other real estate owned	1,526,000	1,540,000
Net federal operating loss carryforward and credits	1,168,000	1,271,000
Annual Incentive Compensation	21,322,000	23,095,000
Deferred Tax Assets Investment in Noncontrolled Affiliates	31,559,000	27,653,000
Allowance for off balance sheet credit exposures	6,527,000	5,873,000
deferred tax assets deferred tax credits	8,282,000	0
Other deferred tax assets	3,267,000	1,941,000
Total deferred tax assets	280,324,000	186,931,000
Deferred Tax Liabilities, Net [Abstract]
Depreciation and amortization	17,723,000	14,520,000
Core deposit and other intangible assets	9,070,000	8,787,000
Securities	0	21,680,000
REIT dividends	2,338,000	1,222,000
FHLB related liabilities	328,000	1,600,000
Right-of-use assets and other leasing transactions	33,157,000	24,315,000
Deferred Tax Liabilities, Leases	35,547,000	0
Subordinated debt	1,662,000	1,791,000
Partnership interests	76,000	23,000
Deferred Tax Liabilities, Derivatives	6,854,000	9,890,000
Other deferred tax liabilities	2,054,000	1,831,000
Total deferred tax liabilities	108,809,000	85,659,000
Net deferred tax assets	171,515,000	101,272,000
Unrecognized Tax Benefits	15,752,000	12,737,000	9,658,000	$ 6,910,000
Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions	3,721,000	3,647,000	2,748,000
Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions	0	0	0
Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations	(706,000)	(568,000)	0
Unrecognized Tax Benefits, Increase Resulting from Settlements with Taxing Authorities	0	0	0
Tax Credit Carryforward, Amount	5,300,000
Income Tax Examination, Penalties and Interest Expense	$ 264,000	$ 0	$ 571,000