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Loans and Allowance for Loan Losses - Loans by Portfolio Segment (Details) - USD ($) $ in Thousands | Sep. 30, 2024 | Jun. 30, 2024 | Dec. 31, 2023 | Sep. 30, 2023 | Jun. 30, 2023 | Dec. 31, 2022
--- | --- | --- | --- | --- | --- | ---
Loans and Leases Receivable Disclosure [Abstract] |  |  |  |  |  |
Loans | $ 4,578,048 |  | $ 4,524,510 |  |  |
Less: Allowance for loan losses | 44,276 | $ 42,407 | 42,674 | $ 41,760 | $ 36,303 | $ 36,515
Total loans | 4,533,772 |  | 4,481,836 |  |  |
Construction Real Estate Loans |  |  |  |  |  |
Loans and Leases Receivable Disclosure [Abstract] |  |  |  |  |  |
Loans | 585,817 |  | 789,744 |  |  |
Less: Allowance for loan losses | 5,155 | 4,734 | 5,287 | 4,414 | 3,395 | 3,164
1-4 Family Residential Real Estate Loans |  |  |  |  |  |
Loans and Leases Receivable Disclosure [Abstract] |  |  |  |  |  |
Loans | 755,406 |  | 696,738 |  |  |
Less: Allowance for loan losses | 2,790 | 2,704 | 2,840 | 2,739 | 2,660 | 2,173
Commercial Real Estate Loans |  |  |  |  |  |
Loans and Leases Receivable Disclosure [Abstract] |  |  |  |  |  |
Loans | 2,422,612 |  | 2,168,451 |  |  |
Less: Allowance for loan losses | 33,759 | 31,841 | 32,266 | 32,339 | 28,012 | 28,701
Commercial loans |  |  |  |  |  |
Loans and Leases Receivable Disclosure [Abstract] |  |  |  |  |  |
Loans | 358,854 |  | 366,893 |  |  |
Less: Allowance for loan losses | 2,400 | 2,942 | 2,086 | 2,069 | 2,017 | 2,235
Municipal loans |  |  |  |  |  |
Loans and Leases Receivable Disclosure [Abstract] |  |  |  |  |  |
Loans | 402,041 |  | 441,168 |  |  |
Less: Allowance for loan losses | 15 | 18 | 19 | 20 | 37 | 45
Loans to individuals |  |  |  |  |  |
Loans and Leases Receivable Disclosure [Abstract] |  |  |  |  |  |
Loans | 53,318 |  | 61,516 |  |  |
Less: Allowance for loan losses | $ 157 | $ 168 | $ 176 | $ 179 | $ 182 | $ 197

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- Definition Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479344/326-20-45-1 + Details
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