Income Taxes, Deferred Tax Assets and Liabilities Resulted in Deferred Taxes Table (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Deferred Tax Assets, Gross [Abstract]
Deferred Tax Asset, Tax Deferred Expense, Reserve and Accrual, Financing Receivable, Allowance for Credit Loss	$ 95,867	$ 89,295
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Other	10,576	9,840
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Accrued Liabilities	33,931	26,109
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits	34,086	30,404
Tax Credit Carryforward, Amount	0	18,160
Deferred Tax Assets, Other Loss Carryforwards	5,760	4,187
Deferred Tax Assets, Capital Loss Carryforwards	15,923	29,325
Deferred Tax Asset, Interest Carryforward	1,840	1,269
Deferred Tax Assets, Partnerships	38,390	37,781
Deferred Tax Assets, Leasing Arrangements	9,921	8,881
Deferred Tax Asset, Basis Difference From Equity Securities and Other Investments	4,302	0
Deferred Tax Asset, Debt Securities, Available-for-Sale, Unrealized Loss	(3,510)	(16,228)
Deferred Tax Asset, Net Unrealized Losses on Benefit Plans	5,879	7,995
Deferred Tax Assets, Other	8,510	3,353
Deferred Tax Assets, Gross, Total	268,495	282,828
Deferred Tax Assets, Valuation Allowance	(15,923)	(32,702)	$ 0
Deferred Tax Assets, Net of Valuation Allowance	252,572	250,126
Deferred Tax Liabilities, Gross [Abstract]
Deferred Tax Liabilities, Prepaid Expenses	102,491	83,251
Deferred Tax Liabilities, Goodwill and Intangible Assets	22,862	22,376
Deferred Tax Liabilities, Mortgage Servicing Rights	21,778	21,877
Loans and Leases Receivable, Deferred Income	8,270	7,836
Deferred Tax Liabilities, Leasing Arrangements	64,171	13,213
Deferred Tax Liabilities, Property, Plant and Equipment	3,029	30,534
Purchase accounting	4,374	6,246
Deferred Tax Liability, Basis Difference From Equity Securities and Other Investments	0	3,104
Deferred Tax Liabilities, Gross, Total	226,975	188,437
Deferred Tax Assets, Net	$ 25,597	$ 61,689