Loans - Schedule of Loans Excluding Loans Held for Sale (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 1,804,447	$ 1,357,476	[1]
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	324,508	285,972
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	1,027,007	753,040
Commercial real estate | Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	143,788	97,240
Commercial real estate | Real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	883,219	655,800
Residential real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	440,907	313,371
Residential real estate | Real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	318,833	209,438
Residential real estate | Home equity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	122,074	103,933
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 12,025	$ 5,093

[1] Derived from audited consolidated financial statements.