Loans - Loans Outstanding by Portfolio Class (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 3,937,810		$ 3,644,617
Allowance for credit losses	(52,350)	$ (52,508)	(54,286)	$ (55,655)	$ (57,186)	$ (57,027)
Net loans	3,885,460		3,590,331
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	2,363,991		2,213,945
Allowance for credit losses	(34,802)	(37,789)	(40,775)	(41,772)	(42,980)	(42,210)
Commercial | Owner occupied real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	585,648		560,887
Commercial | Non–owner occupied real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	1,159,808		1,088,470
Commercial | Residential spec homes
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	11,320		9,907
Commercial | Development & spec land
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	24,913		24,473
Commercial | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	582,302		530,208
Real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	725,070		703,413
Allowance for credit losses	(4,422)	(4,351)	(3,856)	(4,108)	(4,229)	(4,620)
Real estate | Residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	576,353		563,811
Real estate | Residential construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	32,229		30,571
Real estate | Mortgage warehouse
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	116,488		109,031
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	848,749		727,259
Allowance for credit losses	(12,059)	$ (9,313)	(8,596)	$ (8,620)	$ (8,814)	$ (8,930)
Consumer | Direct installment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	59,833		63,714
Consumer | Indirect installment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	466,267		372,575
Consumer | Home equity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 322,649		$ 290,970