Loans - Loans Outstanding by Portfolio Class (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Jun. 30, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 4,012,215		$ 3,644,617
Allowance for credit losses	(51,369)	$ (52,350)	(54,286)	$ (56,779)	$ (55,649)	$ (57,027)
Net loans	3,960,846		3,590,331
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	2,403,743		2,213,945
Allowance for credit losses	(33,806)	(34,802)	(40,775)	(43,121)	(41,766)	(42,210)
Commercial | Owner occupied real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	587,075		560,887
Commercial | Non–owner occupied real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	1,194,898		1,088,470
Commercial | Residential spec homes
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	10,708		9,907
Commercial | Development & spec land
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	23,679		24,473
Commercial | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	587,383		530,208
Real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	708,591		703,413
Allowance for credit losses	(5,137)	(4,422)	(3,856)	(3,737)	(4,108)	(4,620)
Real estate | Residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	598,250		563,811
Real estate | Residential construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	36,651		30,571
Real estate | Mortgage warehouse
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	73,690		109,031
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	899,881		727,259
Allowance for credit losses	(11,402)	$ (12,059)	(8,596)	$ (8,867)	$ (8,620)	$ (8,930)
Consumer | Direct installment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	58,673		63,714
Consumer | Indirect installment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	499,080		372,575
Consumer | Home equity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 342,128		$ 290,970