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Loans and Allowance for Credit Losses on Loans - Schedule of Loans by Class (Details) - USD ($) $ in Thousands | Sep. 30, 2024 | Jun. 30, 2024 | Dec. 31, 2023 | Sep. 30, 2023 | Jun. 30, 2023 | Dec. 31, 2022
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Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |
Loans, at amortized cost | $ 2,090,091 |  | $ 2,073,720 |  |  |
Allowance for credit losses on loans | (30,675) | $ (30,675) | (25,172) | $ (24,260) | $ (23,832) | $ (22,983)
Loans, net of allowance for credit losses on loans | 2,059,416 |  | 2,048,548 |  |  |
Financing receivable, unamortized loan fee | 2,500 |  | 2,700 |  |  |
Unrecognized purchase discounts | 1,100 |  | 2,000 |  |  |
Financing receivable, accrued interest, net | $ 6,700 |  | $ 6,600 |  |  |
Financing Receivable, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration] | Interest receivable and other assets |  | Interest receivable and other assets |  |  |
Commercial loans | Commercial and industrial |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |
Loans, at amortized cost | $ 160,390 |  | $ 153,750 |  |  |
Allowance for credit losses on loans | (1,718) | (1,876) | (1,712) | (1,808) | (1,831) | (1,794)
Commercial real estate loans | Commercial owner-occupied |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |
Loans, at amortized cost | 318,712 |  | 333,181 |  |  |
Allowance for credit losses on loans | (2,345) | (2,408) | (2,476) | (2,530) | (2,589) | (2,487)
Commercial real estate loans | Commercial non-owner occupied |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |
Loans, at amortized cost | 1,266,377 |  | 1,219,385 |  |  |
Allowance for credit losses on loans | (22,100) | (22,165) | (14,933) | (13,624) | (13,201) | (12,676)
Commercial real estate loans | Construction |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |
Loans, at amortized cost | 39,326 |  | 99,164 |  |  |
Allowance for credit losses on loans | (660) | (874) | (1,832) | (2,018) | (1,942) | (1,937)
Residential loans | Home equity |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |
Loans, at amortized cost | 86,479 |  | 82,087 |  |  |
Allowance for credit losses on loans | (647) | (650) | (552) | (565) | (561) | (558)
Residential loans | Other residential |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |
Loans, at amortized cost | 150,573 |  | 118,508 |  |  |
Allowance for credit losses on loans | (1,145) | (769) | (653) | (605) | (599) | (595)
Consumer loans | Installment and other consumer loans |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |
Loans, at amortized cost | 68,234 |  | 67,645 |  |  |
Allowance for credit losses on loans | $ (920) | $ (910) | $ (976) | $ (951) | $ (940) | $ (868)

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