Earnings (loss) per Share and Equity Transactions Earnings (loss) per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2015		Jun. 30, 2014		Jun. 30, 2015		Jun. 30, 2014
Net Income (Loss) Allocated to Common Stockholders [Abstract]
Income (Loss) from Continuing Operations, Including Portion Attributable to Noncontrolling Interest	$ 61,979		$ (40,407)		$ 65,567		$ (43,957)
Less: Dividends					82,591		221,435
Less: Undistributed (Income) Loss From Continuing Operations Allocated to Unvested Shares	(65)		0		0		0
Less: Net (income) attributable to noncontrolling interests	0		8		8		8
Undistributed Income (Loss) From Continuing Operations Allocated to Common Stockholders	33,908		(147,695)		(17,032)		(265,400)
Distributed and undistributed income (loss) from continuing operations - basic	61,914		(40,415)		65,559		(43,965)
Discontinued Operation, Income (Loss) from Discontinued Operation Disclosures [Abstract]
Net income from discontinued operations	$ 88	[1]	$ 49,904	[2]	$ 2,329	[3]	$ 183,936	[4]
Weighted Average Shares Outstanding [Abstract]
Weighted Average Number of Shares Outstanding, Basic	861,824,777		876,951,378		861,824,777		894,674,445
Effect of unvested restricted stock units	0		0		94,000		0
Weighted Average Number of Shares Outstanding, Diluted	861,824,777		876,951,378		861,918,777		894,674,445
Basic income (loss) per share: [Abstract]
Income (Loss) from Continuing Operations Allocated Common Shareholders per Share:	$ 0.07		$ (0.05)		$ 0.08		$ (0.05)
Income (Loss) from Discontinued Operations Allocated Common Shareholders per Share:	0.00		0.06		0.00		0.21
Diluted income (loss) per share: [Abstract]
Income (Loss) from Continuing Operations Allocated Common Shareholders per Share:	0.07		(0.05)		0.08		(0.05)
Income (Loss) from Discontinued Operations Allocated Common Shareholders per Share:	$ 0.00		$ 0.06		$ 0.00		$ 0.21
Accumulated Distributions in excess of Net Loss
Net Income (Loss) Allocated to Common Stockholders [Abstract]
Less: Dividends	$ 28,006		$ 107,280		$ 82,591		$ 221,435
Restricted Stock Units (RSUs) [Member]
Net Income (Loss) Allocated to Common Stockholders [Abstract]
Less: Dividends	$ 0		$ 0		$ 0		$ 0

[1] Net income from discontinued operations primarily relates to immaterial expenses resulting from the Spin-Off of Xenia.

[2] Net income from discontinued operations primarily relates to the gain on sale of net lease properties sold in 2014

[3] Net income from discontinued operations primarily relates to the lodging properties included in the Spin-Off of Xenia.

[4] Net income from discontinued operations primarily relates to the gain on sale of net lease properties sold in 2014 and the lodging properties included in the Spin-Off of Xenia