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