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Loans and Allowance for Credit Losses Total Impaired Loans by Class Segments (Details) - USD ($) $ in Thousands | Sep. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Impaired Financing Receivables [Line Items] |  |
With a Related Allowance | $ 83,879 | $ 84,120
Without a Related Allowance | 66,258 | 105,173
Unpaid Principal Balance | 150,137 | 189,293
Real estate - commercial mortgage |  |
Impaired Financing Receivables [Line Items] |  |
With a Related Allowance | 30,933 | 31,654
Without a Related Allowance | 39,047 | 67,843
Unpaid Principal Balance | 69,980 | 99,497
Commercial |  |
Impaired Financing Receivables [Line Items] |  |
With a Related Allowance | 17,550 | 17,011
Without a Related Allowance | 24,918 | 25,206
Unpaid Principal Balance | 42,468 | 42,217
Real estate - residential mortgage |  |
Impaired Financing Receivables [Line Items] |  |
With a Related Allowance | 26,387 | 23,387
Without a Related Allowance | 1,032 | 2,013
Unpaid Principal Balance | 27,419 | 25,400
Real estate - home equity |  |
Impaired Financing Receivables [Line Items] |  |
With a Related Allowance | 6,891 | 8,513
Without a Related Allowance | 0 | 78
Unpaid Principal Balance | 6,891 | 8,591
Construction |  |
Impaired Financing Receivables [Line Items] |  |
With a Related Allowance | 2,073 | 1,746
Without a Related Allowance | 0 | 0
Unpaid Principal Balance | 2,073 | 1,746
Consumer |  |
Impaired Financing Receivables [Line Items] |  |
With a Related Allowance | 4 | 8
Without a Related Allowance | 0 | 0
Unpaid Principal Balance | 4 | 8
Leases and other loans |  |
Impaired Financing Receivables [Line Items] |  |
With a Related Allowance | 41 | 1,801
Without a Related Allowance | 1,261 | 10,033
Unpaid Principal Balance | $ 1,302 | $ 11,834

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