Loans and Leases and Allowance for Loan and Lease Losses - Performing and Impaired Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 2,652,663	$ 2,382,243
All Other Loans and leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	2,609,034	2,350,179
Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	43,629	32,064
Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	1,313,247	1,012,976
Commercial Real Estate [Member] | All Other Loans and leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	1,290,091	996,853
Commercial Real Estate [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	23,156	16,123
Consumer Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	478,161	443,930
Consumer Real Estate [Member] | All Other Loans and leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	467,298	433,672
Consumer Real Estate [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	10,863	10,258
Construction and Land Development [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	326,374	278,075
Construction and Land Development [Member] | All Other Loans and leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	323,470	272,727
Construction and Land Development [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	2,904	5,348
Commercial and Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	469,739	634,446
Commercial and Industrial [Member] | All Other Loans and leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	466,868	634,138
Commercial and Industrial [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	2,871	308
Leases Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	53,396
Leases Portfolio Segment [Member] | All Other Loans and leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	49,648
Leases Portfolio Segment [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	3,748
Consumer and Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	11,746	12,816
Consumer and Other [Member] | All Other Loans and leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	11,659	12,789
Consumer and Other [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	87	27
Performing [Member] | All Other Loans and leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	2,605,660	2,344,846
Performing [Member] | Commercial Real Estate [Member] | All Other Loans and leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	1,289,233	992,982
Performing [Member] | Consumer Real Estate [Member] | All Other Loans and leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	464,881	432,356
Performing [Member] | Construction and Land Development [Member] | All Other Loans and leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	323,470	272,727
Performing [Member] | Commercial and Industrial [Member] | All Other Loans and leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	466,769	633,992
Performing [Member] | Leases Portfolio Segment [Member] | All Other Loans and leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	49,648
Performing [Member] | Consumer and Other [Member] | All Other Loans and leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	11,659	12,789
Impaired Loans [Member] | All Other Loans and leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	3,374	5,333
Impaired Loans [Member] | Commercial Real Estate [Member] | All Other Loans and leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	858	3,871
Impaired Loans [Member] | Consumer Real Estate [Member] | All Other Loans and leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	2,417	1,316
Impaired Loans [Member] | Commercial and Industrial [Member] | All Other Loans and leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 99	$ 146