Non-controlling Interest - Narrative (Details) - USD ($) $ in Thousands, shares in Millions	1 Months Ended	2 Months Ended	12 Months Ended
	Oct. 31, 2013	Dec. 31, 2015	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Significant Accounting Policies [Line Items]
Deferred tax assets, net			$ 53,698	$ 62,841
Corporate tax rate			21.00%	35.00%	35.00%
RIHI
Significant Accounting Policies [Line Items]
Common stock issued at initial public offering	11.5	5.2
TRA holders
Significant Accounting Policies [Line Items]
Tax benefit realized			85.00%
RMCO, LLC | RIHI
Significant Accounting Policies [Line Items]
TRA liability			$ 40,800