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Loans and Allowance for Loan Losses - Loans by Portfolio Segment (Details) - USD ($) $ in Thousands | Mar. 31, 2024 | Dec. 31, 2023 | Mar. 31, 2023 | Dec. 31, 2022
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Loans and Leases Receivable Disclosure [Abstract] |  |  |  |
Loans | $ 4,577,368 | $ 4,524,510 |  |
Less: Allowance for loan losses | 43,557 | 42,674 | $ 36,332 | $ 36,515
Total loans | 4,533,811 | 4,481,836 |  |
Construction Real Estate Loans |  |  |  |
Loans and Leases Receivable Disclosure [Abstract] |  |  |  |
Loans | 599,464 | 789,744 |  |
Less: Allowance for loan losses | 4,920 | 5,287 | 3,152 | 3,164
1-4 Family Residential Real Estate Loans |  |  |  |
Loans and Leases Receivable Disclosure [Abstract] |  |  |  |
Loans | 720,508 | 696,738 |  |
Less: Allowance for loan losses | 2,768 | 2,840 | 2,314 | 2,173
Commercial Real Estate Loans |  |  |  |
Loans and Leases Receivable Disclosure [Abstract] |  |  |  |
Loans | 2,413,345 | 2,168,451 |  |
Less: Allowance for loan losses | 32,893 | 32,266 | 28,721 | 28,701
Commercial loans |  |  |  |
Loans and Leases Receivable Disclosure [Abstract] |  |  |  |
Loans | 358,053 | 366,893 |  |
Less: Allowance for loan losses | 2,774 | 2,086 | 1,901 | 2,235
Municipal loans |  |  |  |
Loans and Leases Receivable Disclosure [Abstract] |  |  |  |
Loans | 427,225 | 441,168 |  |
Less: Allowance for loan losses | 19 | 19 | 44 | 45
Loans to individuals |  |  |  |
Loans and Leases Receivable Disclosure [Abstract] |  |  |  |
Loans | 58,773 | 61,516 |  |
Less: Allowance for loan losses | $ 183 | $ 176 | $ 200 | $ 197

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