COMBINED CONSOLIDATED STATEMENTS OF EQUITY - USD ($) $ in Thousands	Redeemable Preferred Stock	Common Stock	Additional Paid-in Capital	Net Parent Investment	Accumulated Deficit	Total shareholders' equity	Noncontrolling interests	Total
Balance at Dec. 31, 2015				$ 5,087,494		$ 5,087,494		$ 5,087,494
Increase (decrease) in parent company equity
Net (loss) income				132,355		132,355		132,355
Net distributions to parent				(297,956)		(297,956)		(297,956)
Balance at Jun. 30, 2016				$ 4,921,893		4,921,893		4,921,893
Balance at Dec. 31, 2016	$ 1,930	$ 936	$ 3,163,954		$ (130,094)	3,034,796	$ 497	3,035,293
Increase (decrease) in parent company equity
Net (loss) income	172				(348,850)	(348,850)	41	(348,809)
Stock-based compensation		2	3,871			3,873		3,873
Distributions	(172)		(3)			(3)	(41)	(44)
Balance at Jun. 30, 2017	$ 1,930	$ 938	$ 3,167,822		$ (478,944)	$ 2,689,816	$ 497	$ 2,690,313