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Loans and Allowance for Loan Losses - Aging of Past Due Loans by Class of Loan (Details) - USD ($) $ in Thousands | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Financing Receivable, Past Due [Line Items] |  |
Loans | $ 4,577,368 | $ 4,524,510
Financial Asset, Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 4,565,224 | 4,513,888
30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 7,494 | 7,560
60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 1,909 | 1,156
Greater than 90 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 2,741 | 1,906
Financial Asset, Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 12,144 | 10,622
Construction Real Estate Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 599,464 | 789,744
Construction Real Estate Loans | Financial Asset, Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 599,444 | 789,241
Construction Real Estate Loans | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 20 | 474
Construction Real Estate Loans | 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 0 | 0
Construction Real Estate Loans | Greater than 90 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 0 | 29
Construction Real Estate Loans | Financial Asset, Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 20 | 503
1-4 Family Residential Real Estate Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 720,508 | 696,738
1-4 Family Residential Real Estate Loans | Financial Asset, Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 713,344 | 689,626
1-4 Family Residential Real Estate Loans | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 4,908 | 4,638
1-4 Family Residential Real Estate Loans | 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 26 | 774
1-4 Family Residential Real Estate Loans | Greater than 90 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 2,230 | 1,700
1-4 Family Residential Real Estate Loans | Financial Asset, Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 7,164 | 7,112
Commercial Real Estate Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 2,413,345 | 2,168,451
Commercial Real Estate Loans | Financial Asset, Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 2,409,968 | 2,167,756
Commercial Real Estate Loans | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 1,250 | 621
Commercial Real Estate Loans | 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 1,781 | 34
Commercial Real Estate Loans | Greater than 90 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 346 | 40
Commercial Real Estate Loans | Financial Asset, Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 3,377 | 695
Commercial loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 358,053 | 366,893
Commercial loans | Financial Asset, Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 356,549 | 364,726
Commercial loans | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 1,261 | 1,693
Commercial loans | 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 78 | 347
Commercial loans | Greater than 90 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 165 | 127
Commercial loans | Financial Asset, Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 1,504 | 2,167
Municipal loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 427,225 | 441,168
Municipal loans | Financial Asset, Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 427,225 | 441,141
Municipal loans | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 0 | 27
Municipal loans | 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 0 | 0
Municipal loans | Greater than 90 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 0 | 0
Municipal loans | Financial Asset, Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 0 | 27
Loans to individuals |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 58,773 | 61,516
Loans to individuals | Financial Asset, Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 58,694 | 61,398
Loans to individuals | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 55 | 107
Loans to individuals | 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 24 | 1
Loans to individuals | Greater than 90 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 0 | 10
Loans to individuals | Financial Asset, Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | $ 79 | $ 118

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