Consolidated Statements of Equity (USD $) In Thousands, except Share data, unless otherwise specified	Total	$1.95 per Series A preferred sharefor the years ended December 31, 2012, 2011 and 2010 respectively	$2.00 per Series C depositary preferred share for the years ended December 31, 2012, 2011 and 2010 respectively	Preferred Stock	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Income (Loss)	Accumulated Deficit	Accumulated Deficit $1.95 per Series A preferred sharefor the years ended December 31, 2012, 2011 and 2010 respectively	Accumulated Deficit $2.00 per Series C depositary preferred share for the years ended December 31, 2012, 2011 and 2010 respectively	Treasury Stock	Noncontrolling Interests in Other Partnerships	Comprehensive Income (Loss)
Stockholders' Equity, beginning balance at Dec. 31, 2009	$ 682,699			$ 478,774	$ 694	$ 2,021,837	$ 23,528	$ (1,792,822)			$ (71,895)	$ 22,583
Shares, Issued - beginning balance at Dec. 31, 2009				12,948,000	69,413,000
Increase (Decrease) in Stockholders' Equity
Issuance of common stock - shares					31,625,000
Issuance of common stock - value	166,327				316	166,011
Issuance of stock awards - value	68					(229)					297
Amortization of stock awards	5,400					5,400
Forfeiture of stock awards - value	(1,523)					405					(1,928)
Conversion of operating partnership units into common shares - value	0					(185)					185
Allocation to redeemable noncontrolling interests	(1,815)					(1,815)
Contribution from noncontrolling interests	1,394											1,394
Distribution to noncontrolling interests	(2,383)											(2,383)
Other	(1,049)					(1,116)		(49)				116
Preferred dividends:
Preferred dividends:		(25,117)	(13,596)						(25,117)	(13,596)
Comprehensive loss:
Foreign exchange translation							2,929						2,929
Net loss								(223,041)				(1,915)	(224,956)
Comprehensive loss	(222,027)												(222,027)
Stockholders' Equity, ending balance at Dec. 31, 2010	588,378			478,774	1,010	2,190,308	26,457	(2,054,625)			(73,341)	19,795
Shares, Issued - ending balance at Dec. 31, 2010				12,948,000	101,038,000
Increase (Decrease) in Stockholders' Equity
Issuance of common stock - shares					27,600,000
Issuance of common stock - value	158,476				276	158,200
Retirement of treasury stock - shares					(4,156,000)
Retirement of treasury shares - value					(41)			(73,300)			73,341
Issuance of stock awards - shares					95,000
Issuance of stock awards - value	555				1	554
Amortization of stock awards	3,475					3,475
Forfeiture of stock awards - shares					(312,000)
Forfeiture of stock awards - value	(961)				(3)			(958)
Conversion of operating partnership units into common shares - shares	15,947				16,000
Conversion of operating partnership units into common shares - value	97					97
Allocation to redeemable noncontrolling interests	685					685
Contribution from noncontrolling interests	6,967											6,967
Distribution to noncontrolling interests	(1,053)											(1,053)
Other	(86)					(68)		(18)
Preferred dividends:
Preferred dividends:		(25,117)	(13,596)						(25,117)	(13,596)
Comprehensive loss:
Foreign exchange translation							(719)						(719)
Net loss								(129,854)				(352)	(130,206)
Comprehensive loss	(130,925)												(130,925)
Stockholders' Equity, ending balance at Dec. 31, 2011	586,895			478,774	1,243	2,353,251	25,738	(2,297,468)			0	25,357
Shares, Issued - ending balance at Dec. 31, 2011				12,948,000	124,281,000
Increase (Decrease) in Stockholders' Equity
Issuance of stock awards - shares					10,000
Amortization of stock awards	827					827
Forfeiture of stock awards - shares					(185,000)
Forfeiture of stock awards - value	(544)				(2)	234		(776)
Conversion of operating partnership units into common shares - shares	11,473				11,000
Conversion of operating partnership units into common shares - value	45					45
Allocation to redeemable noncontrolling interests	(776)					(776)
Contribution from noncontrolling interests	3,616											3,616
Distribution to noncontrolling interests	(1,056)											(1,056)
Other	(4)							(4)
Preferred dividends:
Preferred dividends:		(25,117)	(13,596)						(25,117)	(13,596)
Comprehensive loss:
Foreign exchange translation							301						301
Net loss								(128,007)				(565)	(128,572)
Comprehensive loss	(128,271)												(128,271)
Stockholders' Equity, ending balance at Dec. 31, 2012	$ 422,019			$ 478,774	$ 1,241	$ 2,353,581	$ 26,039	$ (2,464,968)			$ 0	$ 27,352
Shares, Issued - ending balance at Dec. 31, 2012				12,948,000	124,117,000