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Loans and Allowance for Credit Losses on Loans - Schedule of Allocation of the Allowance for Credit Losses on Loans (Details) - USD ($) $ in Thousands | Sep. 30, 2024 | Jun. 30, 2024 | Dec. 31, 2023 | Sep. 30, 2023 | Jun. 30, 2023 | Dec. 31, 2022
--- | --- | --- | --- | --- | --- | ---
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |
Allowance for credit losses | $ 30,675 | $ 30,675 | $ 25,172 | $ 24,260 | $ 23,832 | $ 22,983
Modeled expected credit losses |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |
Allowance for credit losses | 12,051 |  | 11,467 |  |  |
Qualitative adjustments |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |
Allowance for credit losses | 10,405 |  | 12,284 |  |  |
Specific allocations |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |
Allowance for credit losses | 8,219 |  | 1,421 |  |  |
Commercial loans | Commercial and industrial |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |
Allowance for credit losses | 1,718 | 1,876 | 1,712 | 1,808 | 1,831 | 1,794
Commercial loans | Commercial and industrial | Modeled expected credit losses |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |
Allowance for credit losses | 807 |  | 897 |  |  |
Commercial loans | Commercial and industrial | Qualitative adjustments |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |
Allowance for credit losses | 663 |  | 622 |  |  |
Commercial loans | Commercial and industrial | Specific allocations |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |
Allowance for credit losses | 248 |  | 193 |  |  |
Commercial real estate loans | Commercial owner-occupied |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |
Allowance for credit losses | 2,345 | 2,408 | 2,476 | 2,530 | 2,589 | 2,487
Commercial real estate loans | Commercial owner-occupied | Modeled expected credit losses |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |
Allowance for credit losses | 1,238 |  | 1,270 |  |  |
Commercial real estate loans | Commercial owner-occupied | Qualitative adjustments |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |
Allowance for credit losses | 1,107 |  | 1,205 |  |  |
Commercial real estate loans | Commercial owner-occupied | Specific allocations |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |
Allowance for credit losses | 0 |  | 1 |  |  |
Commercial real estate loans | Commercial non-owner occupied |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |
Allowance for credit losses | 22,100 | 22,165 | 14,933 | 13,624 | 13,201 | 12,676
Commercial real estate loans | Commercial non-owner occupied | Modeled expected credit losses |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |
Allowance for credit losses | 7,580 |  | 7,380 |  |  |
Commercial real estate loans | Commercial non-owner occupied | Qualitative adjustments |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |
Allowance for credit losses | 6,549 |  | 6,327 |  |  |
Commercial real estate loans | Commercial non-owner occupied | Specific allocations |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |
Allowance for credit losses | 7,971 |  | 1,226 |  |  |
Commercial real estate loans | Construction |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |
Allowance for credit losses | 660 | 874 | 1,832 | 2,018 | 1,942 | 1,937
Commercial real estate loans | Construction | Modeled expected credit losses |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |
Allowance for credit losses | 49 |  | 185 |  |  |
Commercial real estate loans | Construction | Qualitative adjustments |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |
Allowance for credit losses | 611 |  | 1,647 |  |  |
Commercial real estate loans | Construction | Specific allocations |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |
Allowance for credit losses | 0 |  | 0 |  |  |
Residential loans | Home equity |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |
Allowance for credit losses | 647 | 650 | 552 | 565 | 561 | 558
Residential loans | Home equity | Modeled expected credit losses |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |
Allowance for credit losses | 583 |  | 482 |  |  |
Residential loans | Home equity | Qualitative adjustments |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |
Allowance for credit losses | 64 |  | 70 |  |  |
Residential loans | Home equity | Specific allocations |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |
Allowance for credit losses | 0 |  | 0 |  |  |
Residential loans | Other residential |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |
Allowance for credit losses | 1,145 | 769 | 653 | 605 | 599 | 595
Residential loans | Other residential | Modeled expected credit losses |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |
Allowance for credit losses | 1,143 |  | 619 |  |  |
Residential loans | Other residential | Qualitative adjustments |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |
Allowance for credit losses | 2 |  | 33 |  |  |
Residential loans | Other residential | Specific allocations |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |
Allowance for credit losses | 0 |  | 1 |  |  |
Consumer loans | Installment and other consumer loans |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |
Allowance for credit losses | 920 | 910 | 976 | 951 | 940 | 868
Consumer loans | Installment and other consumer loans | Modeled expected credit losses |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |
Allowance for credit losses | 651 |  | 634 |  |  |
Consumer loans | Installment and other consumer loans | Qualitative adjustments |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |
Allowance for credit losses | 269 |  | 342 |  |  |
Consumer loans | Installment and other consumer loans | Specific allocations |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |
Allowance for credit losses | 0 |  | 0 |  |  |
Unallocated |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |
Allowance for credit losses | 1,140 | $ 1,023 | 2,038 | $ 2,159 | $ 2,169 | $ 2,068
Unallocated | Modeled expected credit losses |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |
Allowance for credit losses | 0 |  | 0 |  |  |
Unallocated | Qualitative adjustments |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |
Allowance for credit losses | 1,140 |  | 2,038 |  |  |
Unallocated | Specific allocations |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |
Allowance for credit losses | $ 0 |  | $ 0 |  |  |

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