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v3.23.1

Loans and Allowance for Credit Losses (Narrative) (Details) | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Jun. 30, 2023 | Mar. 31, 2023 USD ($) Default | Mar. 31, 2022 USD ($) Loan | Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 USD ($)
Accounts Notes And Loans Receivable [Line Items] |  |  |  |  |  |  |
Accrued interest |  | $ 107,900,000 |  |  |  |  | $ 100,200,000
Weighted average percentage of forecast |  |  | 40.00% |  |  |  |
Base line economic forecast probability percentage |  | 40.00% |  |  |  |  |
Description of post modification defaults |  | A payment default occurs if the loan is either 90 days or more delinquent or has been charged off as of the end of the period presented. |  |  |  |  |
Number of post modification defaults | Default |  | 0 |  |  |  |  |
Nonaccrual loans |  | $ 54,344,000 |  |  |  |  | 38,991,000
Unfunded commitment to borrowers related to MEFD or TDR |  | 0 |  |  |  |  | 0
Loans held for sale |  | 23,436,000 |  |  |  |  | 26,385,000
Troubled Debt Restructurings [Member] |  |  |  |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |  |  |  |
Nonaccrual loans |  |  |  |  |  |  | 2,600,000
Accruing and nonaccruing |  |  |  |  |  |  | 4,500,000
Reduced interest rate |  |  | $ 100,000 |  |  |  |
Troubled Debt Restructurings [Member] | Loans With Other Modifications [Member] |  |  |  |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |  |  |  |
Other modifications |  | 100 |  |  |  |  |
Modified Loans To Borrowers Experiencing Financial Difficulty [Member] |  |  |  |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |  |  |  |
Nonaccrual loans |  | 1,600,000 |  |  |  |  |
Accruing and nonaccruing |  | $ 1,618,000 |  |  |  |  |
Slower Near-term Growth/Mild Recessionary Scenario S-2 [Member] |  |  |  |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |  |  |  |
Unemployment percentage rate forecast |  |  |  |  | 5.80% | 4.80% |
Gross domestic product annual growth percentage |  |  |  | 3.20% | 0.30% | 0.90% |
Description of decline in gross domestic product due to mild recession |  | This leads to a mild recession that starts in the second quarter of 2023 lasting three quarters, with a peak to trough decline of 1.3% resulting in forecasted annual GDP growth of only |  |  |  |  |
Moderate Recessionary Scenario S-3 [Member] |  |  |  |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |  |  |  |
Allowance for credit losses probability weighting percentage |  | 10.00% |  |  |  |  |
Unemployment percentage rate forecast |  |  |  | 6.30% | 7.60% | 5.60% |
Gross domestic product annual growth percentage |  |  |  | 2.60% | (0.30%) | 0.30% |
Mild Recessionary Scenario S-2 [Member] |  |  |  |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |  |  |  |
Allowance for credit losses probability weighting percentage |  | 50.00% |  |  |  |  |
Downside Scenario S-2 [Member] |  |  |  |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |  |  |  |
Weighted average percentage of forecast |  |  | 60.00% |  |  |  |
Forecast [Member] |  |  |  |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |  |  |  |
Unemployment percentage rate forecast |  |  |  | 4.00% | 3.90% | 3.50% |
Gross domestic product annual growth percentage | (1.30%) |  |  | 2.70% | 1.90% | 1.90% |
Residential Mortgages [Member] |  |  |  |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |  |  |  |
Nonaccrual loans |  | $ 30,111,000 |  |  |  |  | 25,269,000
Loans carried at fair value option |  | 14,900,000 |  |  |  |  | 10,800,000
Unpaid principal balance |  | 14,600,000 |  |  |  |  | 10,600,000
Residential Mortgages [Member] | Troubled Debt Restructurings [Member] |  |  |  |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |  |  |  |
Number of TDRs subsequently defaulted | Loan |  |  | 2 |  |  |  |
Recorded Investment |  |  | $ 100,000 |  |  |  |
Consumer [Member] |  |  |  |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |  |  |  |
Nonaccrual loans |  | 6,697,000 |  |  |  |  | 6,692,000
Real estate in process of foreclosure |  | 3,800,000 |  |  |  |  | 4,900,000
Real estate acquired through foreclosure |  | 400,000 |  |  |  |  | 400,000
Consumer [Member] | Troubled Debt Restructurings [Member] |  |  |  |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |  |  |  |
Number of TDRs subsequently defaulted | Loan |  |  | 2 |  |  |  |
Recorded Investment |  | $ 100,000 |  |  |  |  |
Minimum [Member] |  |  |  |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |  |  |  |
Reportable modification period |  | 9 months |  |  |  |  |
Maximum [Member] |  |  |  |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |  |  |  |
Reportable modification period |  | 5 years |  |  |  |  |
Total Commercial And Industrial [Member] | Modified Loans To Borrowers Experiencing Financial Difficulty [Member] |  |  |  |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |  |  |  |
Accruing and nonaccruing |  | $ 1,618,000 |  |  |  |  |
Total Commercial And Industrial [Member] | Total Commercial [Member] |  |  |  |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |  |  |  |
Nonaccrual loans |  | 15,695,000 |  |  |  |  | 5,481,000
Commercial Non-Real Estate [Member] | Troubled Debt Restructurings [Member] |  |  |  |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |  |  |  |
Number of TDRs subsequently defaulted | Loan |  |  | 2 |  |  |  |
Recorded Investment |  |  | $ 3,100,000 |  |  |  |
Commercial Non-Real Estate [Member] | Total Commercial And Industrial [Member] | Modified Loans To Borrowers Experiencing Financial Difficulty [Member] |  |  |  |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |  |  |  |
Accruing and nonaccruing |  | 934,000 |  |  |  |  |
Commercial Non-Real Estate [Member] | Total Commercial And Industrial [Member] | Total Commercial [Member] |  |  |  |  |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |  |  |  |  |
Nonaccrual loans |  | $ 13,302,000 |  |  |  |  | $ 4,020,000

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