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Loans and Allowance for Loan Losses - Aging of Past Due Loans by Class of Loan (Details) - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Financing Receivable, Past Due [Line Items] |  |
Loans | $ 4,329,043 | $ 4,147,691
Financial Asset, Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 4,323,010 | 4,141,558
30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 3,216 | 4,395
60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 1,955 | 822
Greater than 90 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 862 | 916
Financial Asset, Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 6,033 | 6,133
Construction Real Estate Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 657,354 | 559,681
Construction Real Estate Loans | Financial Asset, Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 657,090 | 559,617
Construction Real Estate Loans | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 122 | 43
Construction Real Estate Loans | 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 6 | 21
Construction Real Estate Loans | Greater than 90 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 136 | 0
Construction Real Estate Loans | Financial Asset, Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 264 | 64
1-4 Family Residential Real Estate Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 684,878 | 663,519
1-4 Family Residential Real Estate Loans | Financial Asset, Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 681,516 | 659,408
1-4 Family Residential Real Estate Loans | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 1,406 | 3,529
1-4 Family Residential Real Estate Loans | 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 1,371 | 368
1-4 Family Residential Real Estate Loans | Greater than 90 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 585 | 214
1-4 Family Residential Real Estate Loans | Financial Asset, Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 3,362 | 4,111
Commercial Real Estate Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 2,100,338 | 1,987,707
Commercial Real Estate Loans | Financial Asset, Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 2,099,449 | 1,987,034
Commercial Real Estate Loans | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 708 | 105
Commercial Real Estate Loans | 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 143 | 153
Commercial Real Estate Loans | Greater than 90 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 38 | 415
Commercial Real Estate Loans | Financial Asset, Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 889 | 673
Commercial loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 383,724 | 412,064
Commercial loans | Financial Asset, Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 382,612 | 411,025
Commercial loans | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 593 | 515
Commercial loans | 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 416 | 277
Commercial loans | Greater than 90 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 103 | 247
Commercial loans | Financial Asset, Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 1,112 | 1,039
Municipal loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 435,211 | 450,067
Municipal loans | Financial Asset, Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 435,211 | 450,067
Municipal loans | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 0 | 0
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 | 0
Loans to individuals |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 67,538 | 74,653
Loans to individuals | Financial Asset, Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 67,132 | 74,407
Loans to individuals | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 387 | 203
Loans to individuals | 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 19 | 3
Loans to individuals | Greater than 90 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 0 | 40
Loans to individuals | Financial Asset, Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | $ 406 | $ 246

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