CONDENSED CONSOLIDATED STATEMENTS OF EQUITY-Unaudited (USD $) In Thousands, except Share data, unless otherwise specified	Total	Series A Preferred Stock	Series B Preferred Stock	Common Stock	Treasury Stock	Additional Paid-in Capital	Additional Paid-in Capital Series A Preferred Stock	Additional Paid-in Capital Series B Preferred Stock	Preferred Stock Series B Preferred Stock	Accumulated Other Comprehensive Loss	Distributions in Excess of Earnings	Noncontrolling Interest
BEGINNING BALANCE at Dec. 31, 2013	$ 3,590,040			$ 3,976	$ (207,740)	$ 5,130,616				$ (311,220)	$ (1,081,467)	$ 55,875
BEGINNING BALANCE (shares) at Dec. 31, 2013				397,674,350	(2,810,026)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation related activity (shares)				795,919
Stock-based compensation related activity	22,794			8		22,786
Changes in fair value of cash flow hedges, net of tax	(704)									(780)		76
Reclassification of unrealized losses on cash flow hedges to net income, net of tax	914									879		35
Foreign currency translation adjustment, net of tax	22,492									38,711		(16,219)
Distributions to noncontrolling interest	(154)											(154)
Common stock dividends/distributions declared	(127,090)										(127,090)
Net income (loss)	193,313										202,499	(9,186)
ENDING BALANCE at Mar. 31, 2014	3,701,605			3,984	(207,740)	5,153,402				(272,410)	(1,006,058)	30,427
ENDING BALANCE (shares) at Mar. 31, 2014				398,470,269	(2,810,026)
BEGINNING BALANCE at Dec. 31, 2014	4,053,352	60		3,995	(207,740)	5,788,786				(794,221)	(837,320)	99,792
Preferred Stock Beginning Balance (shares) at Dec. 31, 2014		6,000,000	0
BEGINNING BALANCE (shares) at Dec. 31, 2014	396,698,725			399,508,751	(2,810,026)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation related activity (shares)				524,880
Stock-based compensation related activity	16,591			5		16,586
Issuance of common stock, (shares)				25,850,000
Issuance of common stock	2,440,390			259			2,440,131
Issuance of preferred stock, (shares)									1,375,000
Issuance of preferred stock	1,338,009							1,337,995	14
Changes in fair value of cash flow hedges, net of tax	(942)									(909)		(33)
Reclassification of unrealized losses on cash flow hedges to net income, net of tax	387									372		15
Foreign currency translation adjustment, net of tax	(432,961)									(411,102)		(21,859)
Distributions to noncontrolling interest	(137)											(137)
Common stock dividends/distributions declared	(178,542)										(178,542)
Net income (loss)	195,492										193,317	2,175
ENDING BALANCE at Mar. 31, 2015	$ 7,431,639	$ 60	$ 14	$ 4,259	$ (207,740)	$ 9,583,498				$ (1,205,860)	$ (822,545)	$ 79,953
Preferred Stock Ending Balance (shares) at Mar. 31, 2015		6,000,000	1,375,000
ENDING BALANCE (shares) at Mar. 31, 2015	423,073,605			425,883,631	(2,810,026)