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Loans and Allowance for Credit Losses - Loans - Non-accrual Loans by Classes of the Loan Portfolio Including Loans Acquired With Credit Deterioration (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Dec. 31, 2022
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Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing receivable, with allowance | $ 1,931 |
Financing receivable, no allowance | 11,527 |
Financing receivable, recorded investment, nonaccrual status | 13,458 | $ 8,195
Commercial portfolio | Commercial real estate |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing receivable, with allowance | 461 |
Financing receivable, no allowance | 6,228 |
Financing receivable, recorded investment, nonaccrual status | 6,689 | 4,864
Commercial portfolio | Commercial and industrial |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing receivable, with allowance | 1,375 |
Financing receivable, no allowance | 181 |
Financing receivable, recorded investment, nonaccrual status | 1,556 | 1,222
Commercial portfolio | Construction |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing receivable, with allowance | 0 |
Financing receivable, no allowance | 2,256 |
Financing receivable, recorded investment, nonaccrual status | 2,256 | 0
Consumer portfolio | Residential mortgage |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing receivable, with allowance | 95 |
Financing receivable, no allowance | 2,862 |
Financing receivable, recorded investment, nonaccrual status | 2,957 | 1,698
Consumer portfolio | Consumer |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing receivable, with allowance | 0 |
Financing receivable, no allowance | 0 |
Financing receivable, recorded investment, nonaccrual status | $ 0 | $ 411

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