Loans - Schedule of Loans Excluding Loans Held for Sale (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 1,836,241	$ 1,357,476	[1]
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	340,427	285,972
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	1,033,022	753,040
Commercial real estate | Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	152,876	97,240
Commercial real estate | Real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	880,146	655,800
Residential real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	450,305	313,371
Residential real estate | Real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	328,400	209,438
Residential real estate | Home equity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	121,905	103,933
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 12,487	$ 5,093

[1] Derived from audited consolidated financial statements.