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Loans and Allowance for Loan Losses - Aging of Past Due Loans by Class of Loan (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Financing Receivable, Past Due [Line Items]
Loans	$ 4,420,633	$ 4,147,691
Financial Asset, Current
Financing Receivable, Past Due [Line Items]
Loans	4,413,322	4,141,558
30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	3,888	4,395
60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	899	822
Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	2,524	916
Financial Asset, Past Due
Financing Receivable, Past Due [Line Items]
Loans	7,311	6,133
Construction Real Estate Loans
Financing Receivable, Past Due [Line Items]
Loans	720,515	559,681
Construction Real Estate Loans | Financial Asset, Current
Financing Receivable, Past Due [Line Items]
Loans	720,340	559,617
Construction Real Estate Loans | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	175	43
Construction Real Estate Loans | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	0	21
Construction Real Estate Loans | Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	0	0
Construction Real Estate Loans | Financial Asset, Past Due
Financing Receivable, Past Due [Line Items]
Loans	175	64
1-4 Family Residential Real Estate Loans
Financing Receivable, Past Due [Line Items]
Loans	689,492	663,519
1-4 Family Residential Real Estate Loans | Financial Asset, Current
Financing Receivable, Past Due [Line Items]
Loans	686,096	659,408
1-4 Family Residential Real Estate Loans | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	748	3,529
1-4 Family Residential Real Estate Loans | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	685	368
1-4 Family Residential Real Estate Loans | Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	1,963	214
1-4 Family Residential Real Estate Loans | Financial Asset, Past Due
Financing Receivable, Past Due [Line Items]
Loans	3,396	4,111
Commercial Real Estate Loans
Financing Receivable, Past Due [Line Items]
Loans	2,117,306	1,987,707
Commercial Real Estate Loans | Financial Asset, Current
Financing Receivable, Past Due [Line Items]
Loans	2,114,898	1,987,034
Commercial Real Estate Loans | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	2,331	105
Commercial Real Estate Loans | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	41	153
Commercial Real Estate Loans | Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	36	415
Commercial Real Estate Loans | Financial Asset, Past Due
Financing Receivable, Past Due [Line Items]
Loans	2,408	673
Commercial loans
Financing Receivable, Past Due [Line Items]
Loans	385,816	412,064
Commercial loans | Financial Asset, Current
Financing Receivable, Past Due [Line Items]
Loans	384,635	411,025
Commercial loans | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	494	515
Commercial loans | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	162	277
Commercial loans | Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	525	247
Commercial loans | Financial Asset, Past Due
Financing Receivable, Past Due [Line Items]
Loans	1,181	1,039
Municipal loans
Financing Receivable, Past Due [Line Items]
Loans	441,512	450,067
Municipal loans | Financial Asset, Current
Financing Receivable, Past Due [Line Items]
Loans	441,512	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	65,992	74,653
Loans to individuals | Financial Asset, Current
Financing Receivable, Past Due [Line Items]
Loans	65,841	74,407
Loans to individuals | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	140	203
Loans to individuals | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	11	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	$ 151	$ 246

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- Definition

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+ References

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