CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - USD ($) $ in Thousands		Total	Series D Preferred Stock [Member]	Preferred Stock [Member]	Total Stockholders’ Equity	Total Stockholders’ Equity Series D Preferred Stock [Member]	Total Stockholders’ Equity Preferred Stock [Member]	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-In Capital [Member]	Accumulated Other Comprehensive Loss [Member]	Accumulated Deficit [Member]	Accumulated Deficit [Member] Series D Preferred Stock [Member]	Accumulated Deficit [Member] Preferred Stock [Member]	Non-Controlling Interests [Member]	Non-Controlling Interests [Member] Preferred Stock [Member]
Beginning balance (shares) at Dec. 31, 2014								42,834,138	905,530,431
Beginning balance at Dec. 31, 2014		$ 9,382,330			$ 9,153,888			$ 428	$ 9,055	$ 11,920,253	$ 2,728	$ (2,778,576)			$ 228,442
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Repurchases of common stock to settle tax obligation (shares)									(268,414)
Repurchases of common stock to settle tax obligation		(2,227)			(2,227)				$ (2)	(2,225)
Equity-based compensation, net (shares)									(377,623)
Equity-based compensation, net		14,500			14,500				$ (4)	14,504
Tax shortfall from equity-based compensation		(764)			(764)					(764)
Distributions declared on common stock		(248,476)			(248,476)							(248,476)
Distributions to non-controlling interest holders		(45,594)													(45,594)
Distributions			$ (410)	$ (71,892)		$ (410)	$ (71,418)						$ (410)	$ (71,418)	(474)
Disposition of consolidated joint venture interest		14,859													14,859
Net income (loss)		(323,492)			(316,353)							(316,353)			(7,139)
Other comprehensive loss		(4,875)			(4,753)						(4,753)				(122)
Ending balance (shares) at Dec. 31, 2015								42,834,138	904,884,394
Ending balance at Dec. 31, 2015		8,713,959			8,523,987			$ 428	$ 9,049	11,931,768	(2,025)	(3,415,233)			189,972
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative effect adjustment for equity-based compensation forfeitures										384		(384)
Issuance of common stock, net (shares)									69,000,000
Issuance of common stock, net		702,476			702,476				$ 690	701,786
Conversion of OP units to common stock (shares)									15,450
Conversion of OP units to common stock					159					159					(159)
Repurchases of common stock to settle tax obligation (shares)									(481,261)
Repurchases of common stock to settle tax obligation		(4,652)			(4,652)				$ (5)	(4,647)
Equity-based compensation, net (shares)									728,067
Equity-based compensation, net		10,728			10,728				$ 7	10,721
Contributions from non-controlling interest holders		675													675
Distributions declared on common stock		(516,703)			(516,703)							(516,703)
Distributions to non-controlling interest holders		(13,183)													(13,183)
Distributions			(492)	(71,892)		(492)	(71,748)						(492)	(71,748)	(144)
Net income (loss)		(200,824)			(195,863)							(195,863)			(4,961)
Other comprehensive loss		(559)			(531)						(531)				(28)
Ending balance (shares) at Dec. 31, 2016								42,834,138	974,146,650
Ending balance at Dec. 31, 2016		8,619,533			8,447,361			$ 428	$ 9,741	12,640,171	(2,556)	(4,200,423)			172,172
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Repurchases of common stock under the Share Repurchase Program (shares)	[1]								(68,759)
Repurchases of common stock under the Share Repurchase Program	[1]	(518)			(518)				$ (1)	(517)
Repurchases of common stock to settle tax obligation (shares)									(268,550)
Repurchases of common stock to settle tax obligation		(2,148)			(2,148)				$ (2)	(2,146)
Equity-based compensation, net (shares)									399,242
Equity-based compensation, net		16,754			16,754				$ 4	16,750
Contributions from non-controlling interest holders		101													101
Distributions declared on common stock		(535,737)			(535,737)							(535,737)
Distributions to non-controlling interest holders		(13,227)													(13,227)
Distributions			$ (491)	$ (71,892)		$ (491)	$ (71,748)						$ (491)	$ (71,748)		$ (144)
Disposition of consolidated joint venture interest		(838)													(838)
Net income (loss)		32,378			31,818							31,818			560
Other comprehensive loss		(1,039)			(1,013)						(1,013)				(26)
Ending balance (shares) at Dec. 31, 2017								42,834,138	974,208,583
Ending balance at Dec. 31, 2017		$ 8,042,876			$ 7,884,278			$ 428	$ 9,742	$ 12,654,258	$ (3,569)	$ (4,776,581)			$ 158,598

[1] The Company’s Share Repurchase Program (as defined in Note 15 – Equity), which was authorized by the board of directors on May 12, 2017, allows for the repurchase of up to $200.0 million of the Company’s outstanding shares of Common Stock over the next 12 months.