Income Taxes - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018	Sep. 01, 2018	Jul. 31, 2015
Operating Loss Carryforwards [Line Items]
Income taxes	$ 11,132	$ 8,532	$ 38,667	$ 28,629
Effective income tax rate			23.04%	21.83%
Domestic Tax Authority | Brand
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards					$ 71,963	$ 83,960
Domestic Tax Authority | Heritage Financial Group
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards					4,956		$ 18,321
State and Local Jurisdiction | Brand
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards					63,218	$ 67,168
State and Local Jurisdiction | Heritage Financial Group
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards					$ 2,365		$ 16,877