Loans - Age Analysis of Past Due Loans and Nonaccrual Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Financing Receivable, Past Due [Line Items]
Loans	$ 1,586,613	$ 1,337,977
Legacy Loans
Financing Receivable, Past Due [Line Items]
Loans	1,372,257	1,004,204
Nonaccrual Loans	3,809	3,952
Purchased Loans
Financing Receivable, Past Due [Line Items]
Loans	214,356	333,773
Nonaccrual Loans	1,493	1,497
30-89 Days Past Due | Legacy Loans
Financing Receivable, Past Due [Line Items]
Loans	1,564	938
30-89 Days Past Due | Purchased Loans
Financing Receivable, Past Due [Line Items]
Loans	125	3,629
90 Days or More Past Due | Legacy Loans
Financing Receivable, Past Due [Line Items]
Loans	0	0
90 Days or More Past Due | Purchased Loans
Financing Receivable, Past Due [Line Items]
Loans	0	0
Total Accruing Loans Past Due | Legacy Loans
Financing Receivable, Past Due [Line Items]
Loans	1,564	938
Total Accruing Loans Past Due | Purchased Loans
Financing Receivable, Past Due [Line Items]
Loans	125	3,629
Current Loans | Legacy Loans
Financing Receivable, Past Due [Line Items]
Loans	1,366,884	999,314
Current Loans | Purchased Loans
Financing Receivable, Past Due [Line Items]
Loans	212,738	328,647
Construction, land and land development
Financing Receivable, Past Due [Line Items]
Loans	235,654	165,446
Other commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	885,807	787,392
Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	1,121,461	952,838
Commercial real estate | Legacy Loans
Financing Receivable, Past Due [Line Items]
Loans	966,262	715,692
Nonaccrual Loans	1,426	577
Commercial real estate | Purchased Loans
Financing Receivable, Past Due [Line Items]
Loans	155,199	237,146
Nonaccrual Loans	126	291
Commercial real estate | 30-89 Days Past Due | Legacy Loans
Financing Receivable, Past Due [Line Items]
Loans	965	355
Commercial real estate | 30-89 Days Past Due | Purchased Loans
Financing Receivable, Past Due [Line Items]
Loans	0	2,680
Commercial real estate | 90 Days or More Past Due | Legacy Loans
Financing Receivable, Past Due [Line Items]
Loans	0	0
Commercial real estate | 90 Days or More Past Due | Purchased Loans
Financing Receivable, Past Due [Line Items]
Loans	0	0
Commercial real estate | Total Accruing Loans Past Due | Legacy Loans
Financing Receivable, Past Due [Line Items]
Loans	965	355
Commercial real estate | Total Accruing Loans Past Due | Purchased Loans
Financing Receivable, Past Due [Line Items]
Loans	0	2,680
Commercial real estate | Current Loans | Legacy Loans
Financing Receivable, Past Due [Line Items]
Loans	963,871	714,760
Commercial real estate | Current Loans | Purchased Loans
Financing Receivable, Past Due [Line Items]
Loans	155,073	234,175
Commercial real estate | Construction, land and land development
Financing Receivable, Past Due [Line Items]
Loans	235,654	165,446
Commercial real estate | Construction, land and land development | Legacy Loans
Financing Receivable, Past Due [Line Items]
Loans	215,731	119,953
Nonaccrual Loans	143	0
Commercial real estate | Construction, land and land development | Purchased Loans
Financing Receivable, Past Due [Line Items]
Loans	19,923	45,493
Nonaccrual Loans	0	31
Commercial real estate | Construction, land and land development | 30-89 Days Past Due | Legacy Loans
Financing Receivable, Past Due [Line Items]
Loans	315	6
Commercial real estate | Construction, land and land development | 30-89 Days Past Due | Purchased Loans
Financing Receivable, Past Due [Line Items]
Loans	0	2,680
Commercial real estate | Construction, land and land development | 90 Days or More Past Due | Legacy Loans
Financing Receivable, Past Due [Line Items]
Loans	0	0
Commercial real estate | Construction, land and land development | 90 Days or More Past Due | Purchased Loans
Financing Receivable, Past Due [Line Items]
Loans	0	0
Commercial real estate | Construction, land and land development | Total Accruing Loans Past Due | Legacy Loans
Financing Receivable, Past Due [Line Items]
Loans	315	6
Commercial real estate | Construction, land and land development | Total Accruing Loans Past Due | Purchased Loans
Financing Receivable, Past Due [Line Items]
Loans	0	2,680
Commercial real estate | Construction, land and land development | Current Loans | Legacy Loans
Financing Receivable, Past Due [Line Items]
Loans	215,273	119,947
Commercial real estate | Construction, land and land development | Current Loans | Purchased Loans
Financing Receivable, Past Due [Line Items]
Loans	19,923	42,782
Commercial real estate | Other commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	885,807	787,392
Commercial real estate | Other commercial real estate | Legacy Loans
Financing Receivable, Past Due [Line Items]
Loans	750,531	595,739
Nonaccrual Loans	1,283	577
Commercial real estate | Other commercial real estate | Purchased Loans
Financing Receivable, Past Due [Line Items]
Loans	135,276	191,653
Nonaccrual Loans	126	260
Commercial real estate | Other commercial real estate | 30-89 Days Past Due | Legacy Loans
Financing Receivable, Past Due [Line Items]
Loans	650	349
Commercial real estate | Other commercial real estate | 30-89 Days Past Due | Purchased Loans
Financing Receivable, Past Due [Line Items]
Loans	0	0
Commercial real estate | Other commercial real estate | 90 Days or More Past Due | Legacy Loans
Financing Receivable, Past Due [Line Items]
Loans	0	0
Commercial real estate | Other commercial real estate | 90 Days or More Past Due | Purchased Loans
Financing Receivable, Past Due [Line Items]
Loans	0	0
Commercial real estate | Other commercial real estate | Total Accruing Loans Past Due | Legacy Loans
Financing Receivable, Past Due [Line Items]
Loans	650	349
Commercial real estate | Other commercial real estate | Total Accruing Loans Past Due | Purchased Loans
Financing Receivable, Past Due [Line Items]
Loans	0	0
Commercial real estate | Other commercial real estate | Current Loans | Legacy Loans
Financing Receivable, Past Due [Line Items]
Loans	748,598	594,813
Commercial real estate | Other commercial real estate | Current Loans | Purchased Loans
Financing Receivable, Past Due [Line Items]
Loans	135,150	191,393
Residential real estate
Financing Receivable, Past Due [Line Items]
Loans	241,251	212,527
Residential real estate | Legacy Loans
Financing Receivable, Past Due [Line Items]
Loans	198,377	159,469
Nonaccrual Loans	1,457	2,641
Residential real estate | Purchased Loans
Financing Receivable, Past Due [Line Items]
Loans	42,874	53,058
Nonaccrual Loans	864	1,198
Residential real estate | 30-89 Days Past Due | Legacy Loans
Financing Receivable, Past Due [Line Items]
Loans	411	421
Residential real estate | 30-89 Days Past Due | Purchased Loans
Financing Receivable, Past Due [Line Items]
Loans	125	560
Residential real estate | 90 Days or More Past Due | Legacy Loans
Financing Receivable, Past Due [Line Items]
Loans	0	0
Residential real estate | 90 Days or More Past Due | Purchased Loans
Financing Receivable, Past Due [Line Items]
Loans	0	0
Residential real estate | Total Accruing Loans Past Due | Legacy Loans
Financing Receivable, Past Due [Line Items]
Loans	411	421
Residential real estate | Total Accruing Loans Past Due | Purchased Loans
Financing Receivable, Past Due [Line Items]
Loans	125	560
Residential real estate | Current Loans | Legacy Loans
Financing Receivable, Past Due [Line Items]
Loans	196,509	156,407
Residential real estate | Current Loans | Purchased Loans
Financing Receivable, Past Due [Line Items]
Loans	41,885	51,300
Commercial, financial & agricultural
Financing Receivable, Past Due [Line Items]
Loans	206,585	154,048
Commercial, financial & agricultural | Legacy Loans
Financing Receivable, Past Due [Line Items]
Loans	191,362	113,040
Nonaccrual Loans	900	708
Commercial, financial & agricultural | Purchased Loans
Financing Receivable, Past Due [Line Items]
Loans	15,223	41,008
Nonaccrual Loans	503	0
Commercial, financial & agricultural | 30-89 Days Past Due | Legacy Loans
Financing Receivable, Past Due [Line Items]
Loans	159	69
Commercial, financial & agricultural | 30-89 Days Past Due | Purchased Loans
Financing Receivable, Past Due [Line Items]
Loans	0	389
Commercial, financial & agricultural | 90 Days or More Past Due | Legacy Loans
Financing Receivable, Past Due [Line Items]
Loans	0	0
Commercial, financial & agricultural | 90 Days or More Past Due | Purchased Loans
Financing Receivable, Past Due [Line Items]
Loans	0	0
Commercial, financial & agricultural | Total Accruing Loans Past Due | Legacy Loans
Financing Receivable, Past Due [Line Items]
Loans	159	69
Commercial, financial & agricultural | Total Accruing Loans Past Due | Purchased Loans
Financing Receivable, Past Due [Line Items]
Loans	0	389
Commercial, financial & agricultural | Current Loans | Legacy Loans
Financing Receivable, Past Due [Line Items]
Loans	190,303	112,263
Commercial, financial & agricultural | Current Loans | Purchased Loans
Financing Receivable, Past Due [Line Items]
Loans	14,720	40,619
Consumer and other
Financing Receivable, Past Due [Line Items]
Loans	17,316	18,564
Consumer and other | Legacy Loans
Financing Receivable, Past Due [Line Items]
Loans	16,256	16,003
Nonaccrual Loans	26	26
Consumer and other | Purchased Loans
Financing Receivable, Past Due [Line Items]
Loans	1,060	2,561
Nonaccrual Loans	0	8
Consumer and other | 30-89 Days Past Due | Legacy Loans
Financing Receivable, Past Due [Line Items]
Loans	29	93
Consumer and other | 30-89 Days Past Due | Purchased Loans
Financing Receivable, Past Due [Line Items]
Loans	0	0
Consumer and other | 90 Days or More Past Due | Legacy Loans
Financing Receivable, Past Due [Line Items]
Loans	0	0
Consumer and other | 90 Days or More Past Due | Purchased Loans
Financing Receivable, Past Due [Line Items]
Loans	0	0
Consumer and other | Total Accruing Loans Past Due | Legacy Loans
Financing Receivable, Past Due [Line Items]
Loans	29	93
Consumer and other | Total Accruing Loans Past Due | Purchased Loans
Financing Receivable, Past Due [Line Items]
Loans	0	0
Consumer and other | Current Loans | Legacy Loans
Financing Receivable, Past Due [Line Items]
Loans	16,201	15,884
Consumer and other | Current Loans | Purchased Loans
Financing Receivable, Past Due [Line Items]
Loans	$ 1,060	$ 2,553