Loans and Allowance for Credit Losses (Aging of Past Due Financing Receivables) (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	$ 4,654	$ 3,615
Nonaccrual	2,848	2,004
Loans held for investment	$ 2,181,106	$ 2,119,175
Percent of total loans, Total past due	0.20%	0.10%
Percent of total loans, Nonaccrual	0.10%	0.10%
Percent of total loans, Total loans	100.00%	100.00%
PCI loans acquired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans held for investment	$ 32,487	$ 33,650
Percent of total loans, Total loans	1.50%	1.60%
Current [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	$ 2,141,117	$ 2,079,906
Percent of total loans, Current	98.20%	98.20%
Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	$ 4,147	$ 3,020
Percent of total loans, Total past due	0.20%	0.10%
Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	$ 48	$ 87
Percent of total loans, Total past due		0.00%
Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	459	$ 508
Percent of total loans, Total past due		0.00%
Residential Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	3,264	$ 1,474
Nonaccrual	1,546	803
Loans held for investment	653,800	654,769
Residential Portfolio Segment [Member] | PCI loans acquired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans held for investment	16,603	17,326
Residential Portfolio Segment [Member] | Current [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	632,387	635,166
Residential Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	3,201	1,371
Residential Portfolio Segment [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	48	25
Residential Portfolio Segment [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	15	78
Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	439	679
Nonaccrual	747	606
Loans held for investment	928,116	896,229
Commercial Real Estate Portfolio Segment [Member] | PCI loans acquired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans held for investment	13,207	13,594
Commercial Real Estate Portfolio Segment [Member] | Current [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	913,723	881,350
Commercial Real Estate Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	21	259
Commercial Real Estate Portfolio Segment [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	418	420
Commercial Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	30	255
Nonaccrual	215	298
Loans held for investment	177,037	203,377
Commercial Portfolio Segment [Member] | PCI loans acquired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans held for investment	294	321
Commercial Portfolio Segment [Member] | Current [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	176,498	202,503
Commercial Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	4	183
Commercial Portfolio Segment [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due		62
Commercial Portfolio Segment [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	26	10
Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	199	287
Nonaccrual	15
Loans held for investment	163,977	125,447
Consumer Portfolio Segment [Member] | PCI loans acquired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans held for investment	27	30
Consumer Portfolio Segment [Member] | Current [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	163,736	125,130
Consumer Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	199	287
Construction Loans [Member] | Commercial and Residential Real Estate Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	722	920
Nonaccrual	325	297
Loans held for investment	258,176	239,353
Construction Loans [Member] | Commercial and Residential Real Estate Portfolio Segment [Member] | PCI loans acquired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans held for investment	2,356	2,379
Construction Loans [Member] | Commercial and Residential Real Estate Portfolio Segment [Member] | Current [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	254,773	235,757
Construction Loans [Member] | Commercial and Residential Real Estate Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due	$ 722	$ 920