COMBINED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (UNAUDITED) (USD $) In Thousands, except Share data	Total	Predecessor [Member]	Common Shares [Member]	Additional Paid in Capital [Member]	Retained Earnings [Member]	Predecessor Shareholders' Equity [Member] Predecessor [Member]	Noncontrolling Interest [Member] Consolidated Joint Ventures and Funds [Member]	Noncontrolling Interest [Member] Operating Partnership [Member]	Noncontrolling Interest [Member] Predecessor [Member] Consolidated Joint Ventures and Funds [Member]
Beginning balance at Dec. 31, 2013		$ 2,025,444				$ 321,769			$ 1,703,675
Net (loss) income		36,705				9,395			27,310
Contributions		78,328				399			77,929
Distributions		(22,671)				(22,671)
Ending balance at Mar. 31, 2014		2,117,806				308,892			1,808,914
Beginning balance at Dec. 31, 2014	5,554,953		2,122	3,851,432	57,308		685,888	958,203
Common stock, shares outstanding at Dec. 31, 2014	212,106,718		212,106,718
Net (loss) income	(11,427)				(9,731)		668	(2,364)
Dividends	(35,325)				(28,422)			(6,903)
Contributions from noncontrolling interest	2,430						2,430
Distributions to noncontrolling interests	(3,488)						(3,488)
Adjustments to carry common units at redemption value				(43,409)				43,409
Amortization of equity awards	3,035			581				2,454
Other	(830)			(411)	(97)		(322)
Ending balance at Mar. 31, 2015	$ 5,509,348		$ 2,122	$ 3,808,193	$ 19,058		$ 685,176	$ 994,799
Common stock, shares outstanding at Mar. 31, 2015	212,106,718		212,106,718