Loans - Age Analysis of Past Due Loans and Nonaccrual Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Financing Receivable, Past Due [Line Items]
Loans	$ 1,354,032	$ 1,337,977
Legacy Loans
Financing Receivable, Past Due [Line Items]
Loans	1,093,513	1,004,204
Nonaccrual Loans	4,981	3,952
Purchased Loans
Financing Receivable, Past Due [Line Items]
Loans	260,519	333,773
Nonaccrual Loans	1,190	1,497
30-89 Days Past Due | Legacy Loans
Financing Receivable, Past Due [Line Items]
Loans	1,601	938
30-89 Days Past Due | Purchased Loans
Financing Receivable, Past Due [Line Items]
Loans	827	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	1,601	938
Total Accruing Loans Past Due | Purchased Loans
Financing Receivable, Past Due [Line Items]
Loans	827	3,629
Current Loans | Legacy Loans
Financing Receivable, Past Due [Line Items]
Loans	1,086,931	999,314
Current Loans | Purchased Loans
Financing Receivable, Past Due [Line Items]
Loans	258,502	328,647
Construction, land and land development
Financing Receivable, Past Due [Line Items]
Loans	170,911	165,446
Other commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	802,995	787,392
Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	973,906	952,838
Commercial real estate | Legacy Loans
Financing Receivable, Past Due [Line Items]
Loans	801,137	715,692
Nonaccrual Loans	1,403	577
Commercial real estate | Purchased Loans
Financing Receivable, Past Due [Line Items]
Loans	172,769	237,146
Nonaccrual Loans	125	291
Commercial real estate | 30-89 Days Past Due | Legacy Loans
Financing Receivable, Past Due [Line Items]
Loans	868	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	868	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	798,866	714,760
Commercial real estate | Current Loans | Purchased Loans
Financing Receivable, Past Due [Line Items]
Loans	172,644	234,175
Commercial real estate | Construction, land and land development
Financing Receivable, Past Due [Line Items]
Loans	170,911	165,446
Commercial real estate | Construction, land and land development | Legacy Loans
Financing Receivable, Past Due [Line Items]
Loans	147,306	119,953
Nonaccrual Loans	67	0
Commercial real estate | Construction, land and land development | Purchased Loans
Financing Receivable, Past Due [Line Items]
Loans	23,605	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	109	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	109	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	147,130	119,947
Commercial real estate | Construction, land and land development | Current Loans | Purchased Loans
Financing Receivable, Past Due [Line Items]
Loans	23,605	42,782
Commercial real estate | Other commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	802,995	787,392
Commercial real estate | Other commercial real estate | Legacy Loans
Financing Receivable, Past Due [Line Items]
Loans	653,831	595,739
Nonaccrual Loans	1,336	577
Commercial real estate | Other commercial real estate | Purchased Loans
Financing Receivable, Past Due [Line Items]
Loans	149,164	191,653
Nonaccrual Loans	125	260
Commercial real estate | Other commercial real estate | 30-89 Days Past Due | Legacy Loans
Financing Receivable, Past Due [Line Items]
Loans	759	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	759	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	651,736	594,813
Commercial real estate | Other commercial real estate | Current Loans | Purchased Loans
Financing Receivable, Past Due [Line Items]
Loans	149,039	191,393
Residential real estate
Financing Receivable, Past Due [Line Items]
Loans	207,686	212,527
Residential real estate | Legacy Loans
Financing Receivable, Past Due [Line Items]
Loans	149,215	159,469
Nonaccrual Loans	2,978	2,641
Residential real estate | Purchased Loans
Financing Receivable, Past Due [Line Items]
Loans	58,471	53,058
Nonaccrual Loans	1,061	1,198
Residential real estate | 30-89 Days Past Due | Legacy Loans
Financing Receivable, Past Due [Line Items]
Loans	278	421
Residential real estate | 30-89 Days Past Due | Purchased Loans
Financing Receivable, Past Due [Line Items]
Loans	598	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	278	421
Residential real estate | Total Accruing Loans Past Due | Purchased Loans
Financing Receivable, Past Due [Line Items]
Loans	598	560
Residential real estate | Current Loans | Legacy Loans
Financing Receivable, Past Due [Line Items]
Loans	145,959	156,407
Residential real estate | Current Loans | Purchased Loans
Financing Receivable, Past Due [Line Items]
Loans	56,812	51,300
Commercial, financial & agricultural
Financing Receivable, Past Due [Line Items]
Loans	154,238	154,048
Commercial, financial & agricultural | Legacy Loans
Financing Receivable, Past Due [Line Items]
Loans	126,373	113,040
Nonaccrual Loans	578	708
Commercial, financial & agricultural | Purchased Loans
Financing Receivable, Past Due [Line Items]
Loans	27,865	41,008
Nonaccrual Loans	0	0
Commercial, financial & agricultural | 30-89 Days Past Due | Legacy Loans
Financing Receivable, Past Due [Line Items]
Loans	437	69
Commercial, financial & agricultural | 30-89 Days Past Due | Purchased Loans
Financing Receivable, Past Due [Line Items]
Loans	226	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	437	69
Commercial, financial & agricultural | Total Accruing Loans Past Due | Purchased Loans
Financing Receivable, Past Due [Line Items]
Loans	226	389
Commercial, financial & agricultural | Current Loans | Legacy Loans
Financing Receivable, Past Due [Line Items]
Loans	125,358	112,263
Commercial, financial & agricultural | Current Loans | Purchased Loans
Financing Receivable, Past Due [Line Items]
Loans	27,639	40,619
Consumer and other
Financing Receivable, Past Due [Line Items]
Loans	18,202	18,564
Consumer and other | Legacy Loans
Financing Receivable, Past Due [Line Items]
Loans	16,788	16,003
Nonaccrual Loans	22	26
Consumer and other | Purchased Loans
Financing Receivable, Past Due [Line Items]
Loans	1,414	2,561
Nonaccrual Loans	4	8
Consumer and other | 30-89 Days Past Due | Legacy Loans
Financing Receivable, Past Due [Line Items]
Loans	18	93
Consumer and other | 30-89 Days Past Due | Purchased Loans
Financing Receivable, Past Due [Line Items]
Loans	3	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	18	93
Consumer and other | Total Accruing Loans Past Due | Purchased Loans
Financing Receivable, Past Due [Line Items]
Loans	3	0
Consumer and other | Current Loans | Legacy Loans
Financing Receivable, Past Due [Line Items]
Loans	16,748	15,884
Consumer and other | Current Loans | Purchased Loans
Financing Receivable, Past Due [Line Items]
Loans	$ 1,407	$ 2,553