COMBINED CONSOLIDATED STATEMENTS OF EQUITY - USD ($) $ in Thousands	Redeemable Preferred Stock	Common Stock	Additional Paid-in Capital	Net Parent Investment	Accumulated Deficit	Noncontrolling interests	Total shareholders' equity	Total
Increase (decrease) in parent company equity
Total equity including portion attributable to noncontrolling interests								$ 5,087,494
Balance at Dec. 31, 2015				$ 5,087,494			$ 5,087,494
Increase (decrease) in parent company equity
Net income				48,762			48,762	48,762
Net income including portion attributable to noncontrolling interests								48,762
Net distributions to parent				(177,921)			(177,921)	(177,921)
Balance at Mar. 31, 2016				$ 4,958,335			4,958,335
Increase (decrease) in parent company equity
Total equity including portion attributable to noncontrolling interests								4,958,335
Total equity including portion attributable to noncontrolling interests								3,035,293
Balance at Dec. 31, 2016	$ 1,930	$ 936	$ 3,163,954		$ (130,094)	$ 497	3,034,796	3,034,796
Increase (decrease) in parent company equity
Net income	111				36,684	24	36,684	36,795
Net income including portion attributable to noncontrolling interests								36,708
Stock-based compensation			1,733				1,733	1,733
Net distributions to parent	(111)		(3)			(24)	(3)	(27)
Balance at Mar. 31, 2017	$ 1,930	$ 936	$ 3,165,684		$ (93,410)	$ 497	$ 3,073,210	3,073,210
Increase (decrease) in parent company equity
Total equity including portion attributable to noncontrolling interests								$ 3,073,707