Loans and Allowance for Credit Losses Total Impaired Loans by Class Segments (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Impaired Financing Receivables [Line Items]
With a Related Allowance	$ 83,116	$ 81,504
Without a Related Allowance	63,341	72,368
Unpaid Principal Balance	146,457	153,872
Real estate - commercial mortgage
Impaired Financing Receivables [Line Items]
With a Related Allowance	27,018	27,437
Without a Related Allowance	36,921	44,613
Unpaid Principal Balance	63,939	72,050
Commercial
Impaired Financing Receivables [Line Items]
With a Related Allowance	18,331	19,822
Without a Related Allowance	21,037	24,281
Unpaid Principal Balance	39,368	44,103
Real estate - residential mortgage
Impaired Financing Receivables [Line Items]
With a Related Allowance	28,092	25,423
Without a Related Allowance	5,383	2,328
Unpaid Principal Balance	33,475	27,751
Real estate - home equity
Impaired Financing Receivables [Line Items]
With a Related Allowance	8,096	7,126
Without a Related Allowance	0	0
Unpaid Principal Balance	8,096	7,126
Construction
Impaired Financing Receivables [Line Items]
With a Related Allowance	1,559	1,661
Without a Related Allowance	0	0
Unpaid Principal Balance	1,559	1,661
Consumer
Impaired Financing Receivables [Line Items]
With a Related Allowance	2	3
Without a Related Allowance	0	0
Unpaid Principal Balance	2	3
Leases and other loans
Impaired Financing Receivables [Line Items]
With a Related Allowance	18	32
Without a Related Allowance	0	1,146
Unpaid Principal Balance	$ 18	$ 1,178

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Amount of financing receivable individually evaluated for credit loss. Excludes financing receivable collectively evaluated for credit loss.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 4
-Subparagraph (SAB Topic 6.L.5.a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480418/310-10-S99-4

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 11C
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481962/310-10-50-11C

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- Definition

Amount of financing receivable with allowance for credit loss evaluated on individual basis. Excludes financing receivable evaluated on collective basis.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 35
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479366/326-20-35-6

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