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Loans and Allowance for Credit Losses - Loans on Nonaccrual Status and Loans Past Due 90 Days or More and Still Accruing (Details) - USD ($) $ in Thousands | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2026 | Dec. 31, 2025
Financing Receivable, Nonaccrual [Line Items] |  |
Beginning of Period Nonaccrual | $ 55,558 | $ 27,937
End of Period Nonaccrual | 40,216 | 55,558
Nonaccrual With No Related Allowance | 12,543 | 27,521
Interest income recognized on nonaccrual | 650 | 1,699
Commercial loans | Commercial real estate |  |
Financing Receivable, Nonaccrual [Line Items] |  |
Beginning of Period Nonaccrual | 15,185 | 3,228
End of Period Nonaccrual | 6,937 | 15,185
Nonaccrual With No Related Allowance | 6,937 | 14,936
Interest income recognized on nonaccrual | 169 | 123
Commercial loans | Commercial and industrial |  |
Financing Receivable, Nonaccrual [Line Items] |  |
Beginning of Period Nonaccrual | 24,906 | 11,173
End of Period Nonaccrual | 16,243 | 24,906
Nonaccrual With No Related Allowance | 3,325 | 12,585
Interest income recognized on nonaccrual | 192 | 202
Commercial loans | Commercial construction |  |
Financing Receivable, Nonaccrual [Line Items] |  |
Beginning of Period Nonaccrual | 869 | 0
End of Period Nonaccrual | 0 | 869
Nonaccrual With No Related Allowance | 0 | 0
Interest income recognized on nonaccrual | 4 | 581
Commercial loans | Business banking |  |
Financing Receivable, Nonaccrual [Line Items] |  |
Beginning of Period Nonaccrual | 3,576 | 2,988
End of Period Nonaccrual | 5,018 | 3,576
Nonaccrual With No Related Allowance | 2,281 | 0
Interest income recognized on nonaccrual | 63 | 198
Consumer loans | Consumer real estate |  |
Financing Receivable, Nonaccrual [Line Items] |  |
Beginning of Period Nonaccrual | 10,864 | 10,318
End of Period Nonaccrual | 11,878 | 10,864
Nonaccrual With No Related Allowance | 0 | 0
Interest income recognized on nonaccrual | 221 | 592
Consumer loans | Other consumer |  |
Financing Receivable, Nonaccrual [Line Items] |  |
Beginning of Period Nonaccrual | 158 | 230
End of Period Nonaccrual | 140 | 158
Nonaccrual With No Related Allowance | 0 | 0
Interest income recognized on nonaccrual | $ 1 | $ 3

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