Consolidated and Combined Statements of Changes in Equity (Deficit) - USD ($) $ in Thousands	Total	Class A Common Stock	Class B Common Stock	Additional Paid-in Capital	Retained Deficit	Accumulated Other Comprehensive Income (Loss)	Former Parent Company Investment	Redeemable Non-Controlling Interests
Beginning Balance at Dec. 31, 2013	$ 301,328					$ (233)	$ 301,561
Net Income (Loss)	4,492						4,492
Currency Translation Adjustment	1,243					1,243
Net Increase (Decrease) in Former Parent Company Investment	25,257						25,257
Ending Balance at Dec. 31, 2014	332,320					1,010	331,310
Net Income (Loss)	18,760						18,760
Currency Translation Adjustment	635					635
Net Increase (Decrease) in Former Parent Company Investment	(95,530)						(95,530)
Ending Balance at Sep. 30, 2015	256,185					1,645	254,540
Beginning Balance at Dec. 31, 2014	332,320					1,010	331,310
Net Income (Loss)	7,576
Ending Balance at Dec. 31, 2015	32,080	$ 180		$ 43,132	$ (11,184)	(48)		$ 309,855
Ending Balance (in shares) at Dec. 31, 2015		17,966,456	300
Beginning Balance at Sep. 30, 2015	256,185					1,645	254,540
Settlement of Due from Blackstone Balances	24,002			24,002
Establishment of Deferred Tax Asset Related to Reorganization	62,267			62,267
Tax Distributions								(4,663)
Forfeiture Liability for Equity Awards	(1,319)			(1,319)
Net Income (Loss)	(11,184)				(11,184)			(13,751)
Currency Translation Adjustment	(13)					(13)
Reorganization of Equity Structure	(109,993)			146,227		(1,680)	$ (254,540)	119,858
Issuances of Common Stock	180	$ 180
Issuances of Common Stock (in shares)		17,966,456	300
Equity-Based Compensation	11,782			11,782				8,589
Adjustment of Redeemable Non-Controlling Interests to Redemption Value	(199,822)			(199,822)				199,822
Other	(5)			(5)
Ending Balance at Dec. 31, 2015	32,080	$ 180		43,132	(11,184)	(48)		309,855
Ending Balance (in shares) at Dec. 31, 2015		17,966,456	300
Tax Distributions								(12,381)
Forfeiture Liability for Equity Awards	804			804
Net Income (Loss)	(3,034)				(3,034)			8,142
Currency Translation Adjustment	109					109		143
Dividends	(3,728)				(3,728)
Non-Cash Contributions from Former Parent	8,566			8,566
Net Share Settlement	(230)			(230)				(36)
Issuances of Common Stock	(8,933)			(8,933)				8,933
Issuances of Common Stock (in shares)		36,816	7
Forfeitures of Shares	1,511			1,511				(1,511)
Forfeitures of Shares (in shares)			(3)
Equity-Based Compensation	50,510			50,510				38,500
Cash Settled Exchanges of Partnership Units	170			170				(16,054)
Cash Settled Exchanges of Partnership Units (in shares)			(33)
Adjustment of Redeemable Non-Controlling Interests to Redemption Value	(86,385)			(86,385)				86,385
Ending Balance at Dec. 31, 2016	$ (8,560)	$ 180		$ 9,145	$ (17,946)	$ 61		$ 421,976
Ending Balance (in shares) at Dec. 31, 2016		18,003,272	271