Stockholder's Equity - (Details) - USD ($)					1 Months Ended	6 Months Ended
	Jun. 09, 2017	Jun. 05, 2017	May 31, 2017	Oct. 06, 2016	May 31, 2017	Jun. 30, 2017	Dec. 31, 2016
Common Stock
Number of shares issued	600,000		4,000,000
Offering price (in dollars per share)			$ 27.75		$ 27.75
Proceeds, net of underwriting discounts and commissions	$ 16,000,000		$ 106,600,000			$ 122,544,000
Continuing Equity Owners
Common Stock
Units held						59,310,552	64,835,914
Percentage of ownership				77.40%		67.10%	77.40%
Class A common stock
Common Stock
Common stock, outstanding						29,061,420	18,935,916
Number of shares issued						4,600,000
Class A common stock | Selling Stockholders
Common Stock
Offering price (in dollars per share)			$ 27.75		$ 27.75
Redemption of common stock by selling shareholders			4,323,083
Shares of common stock redeemed for shares of common stock	648,462		4,323,083		4,323,083
Shares issued by selling stockholders	825,000		5,500,000		5,500,000
Shares sold that were previously held	176,538				1,176,917
Class A common stock | Over allotment
Common Stock
Number of shares issued		600,000
Class A common stock | Over allotment | Selling Stockholders
Common Stock
Shares issued by selling stockholders		825,000
Class B common stock
Common Stock
Common stock, outstanding						57,031,184	62,002,729
Class B common stock | Selling Stockholders
Common Stock
Redemption of common stock by selling shareholders	648,462
Number of common stock cancelled	648,462		4,323,083		4,323,083
Consideration for redemption of shares	$ 0		$ 0
Class C common stock
Common Stock
Common stock, outstanding						1	1
CWH BR Merger
Common Stock
Units held				7,063,716
Common stock, outstanding				7,063,716
CWH BR Merger | Class A common stock
Common Stock
Shares issued in acquisition				7,063,716
CWH BR Merger | Class B common stock
Common Stock
Shares cancelled				7,063,716
CWGS Enterprises, LLC and Subsidiaries
Common Stock
Units held						29,061,420	18,935,916
Ownership interest				22.60%		32.90%	22.60%
CWGS LLC
Common Stock
Purchase of newly-issued common units	600,000		4,000,000		4,000,000