Income Taxes - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018	Sep. 01, 2018	Jul. 31, 2015
Operating Loss Carryforwards [Line Items]
Income taxes	$ 13,590	$ 9,673
Effective income tax rate	23.15%	22.24%
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