Loans and Allowances for Credit Losses Loans and Allowances for Credit Losses, Nonaccrual (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual	$ 60,004	$ 74,360
Nonperforming Financial Instruments [Member] \| Nonaccrual [Member]
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual	60,004	74,360
Financing Receivable, Nonaccrual, No Allowance	50,966	55,017
Financing Receivable, Nonaccrual, With Allowance	9,038	19,343
Financing Receivable, Nonaccrual, Related Allowance	3,081	6,188
Commercial [Member]
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual	25,266	36,102
Commercial [Member] \| Nonperforming Financial Instruments [Member] \| Nonaccrual [Member]
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual	25,266	36,102
Financing Receivable, Nonaccrual, No Allowance	16,228	23,456
Financing Receivable, Nonaccrual, With Allowance	9,038	12,646
Financing Receivable, Nonaccrual, Related Allowance	3,081	3,993
Commercial [Member] \| Healthcare [Member] \| Nonperforming Financial Instruments [Member] \| Nonaccrual [Member]
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual	21,138	23,490
Financing Receivable, Nonaccrual, No Allowance	14,850	18,390
Financing Receivable, Nonaccrual, With Allowance	6,288	5,100
Financing Receivable, Nonaccrual, Related Allowance	331	200
Commercial [Member] \| Services [Member] \| Nonperforming Financial Instruments [Member] \| Nonaccrual [Member]
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual	1,260	6,135
Financing Receivable, Nonaccrual, No Allowance	1,260	1,339
Financing Receivable, Nonaccrual, With Allowance	0	4,796
Financing Receivable, Nonaccrual, Related Allowance	0	1,043
Commercial [Member] \| General business [Member] \| Nonperforming Financial Instruments [Member] \| Nonaccrual [Member]
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual	2,868	6,477
Financing Receivable, Nonaccrual, No Allowance	118	3,727
Financing Receivable, Nonaccrual, With Allowance	2,750	2,750
Financing Receivable, Nonaccrual, Related Allowance	2,750	2,750
Commercial real estate [Member]
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual	6,601	6,697
Commercial real estate [Member] \| Nonperforming Financial Instruments [Member] \| Nonaccrual [Member]
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual	6,601	6,697
Financing Receivable, Nonaccrual, No Allowance	6,601	0
Financing Receivable, Nonaccrual, With Allowance	0	6,697
Financing Receivable, Nonaccrual, Related Allowance	0	2,195
Loans to individuals [Member]
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual	28,137	31,561
Loans to individuals [Member] \| Nonperforming Financial Instruments [Member] \| Nonaccrual [Member]
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual	28,137	31,561
Financing Receivable, Nonaccrual, No Allowance	28,137	31,561
Financing Receivable, Nonaccrual, With Allowance	0	0
Financing Receivable, Nonaccrual, Related Allowance	0	0
Loans to individuals [Member] \| Residential mortgage [Member] \| Nonperforming Financial Instruments [Member] \| Nonaccrual [Member]
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual	20,175	18,263
Financing Receivable, Nonaccrual, No Allowance	20,175	18,263
Financing Receivable, Nonaccrual, With Allowance	0	0
Financing Receivable, Nonaccrual, Related Allowance	0	0
Loans to individuals [Member] \| Personal [Member] \| Nonperforming Financial Instruments [Member] \| Nonaccrual [Member]
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual	194	4,712
Financing Receivable, Nonaccrual, No Allowance	194	4,712
Financing Receivable, Nonaccrual, With Allowance	0	0
Financing Receivable, Nonaccrual, Related Allowance	0	0
US Government Agency Insured Loans [Member] \| Loans to individuals [Member] \| Residential mortgage [Member] \| Nonperforming Financial Instruments [Member] \| Nonaccrual [Member]
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual	7,768	8,586
Financing Receivable, Nonaccrual, No Allowance	7,768	8,586
Financing Receivable, Nonaccrual, With Allowance	0	0
Financing Receivable, Nonaccrual, Related Allowance	$ 0	$ 0

Amount of financing receivable on nonaccrual status with a related allowance.

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Amount of financing receivable on nonaccrual status with an allowance.

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Amortized cost of financing receivable on nonaccrual status with no allowance for credit loss. Excludes net investment in lease.

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