Consolidated Statements of Changes in Equity - USD ($) shares in Thousands, $ in Thousands	Total	$0.975 per Series A preferred share	$1.00 per Series C depositary preferred share	Dividend per common stock	Preferred Stock	Preferred Stock $1.00 per Series C depositary preferred share	Common Stock	Additional Paid-in Capital	Additional Paid-in Capital $1.00 per Series C depositary preferred share	Accumulated Other Comprehensive Income	Accumulated Deficit	Accumulated Deficit $0.975 per Series A preferred share	Accumulated Deficit $1.00 per Series C depositary preferred share	Accumulated Deficit Dividend per common stock	Noncontrolling Interests in Other Partnerships	Preferred Equity in Consolidated Joint Venture	Comprehensive Income (Loss)
Shares, Issued - beginning balance at Dec. 31, 2013					12,948		124,051
Stockholders' Equity, beginning balance at Dec. 31, 2013	$ 314,230				$ 478,774		$ 1,240	$ 2,354,328		$ 24,937	$ (2,568,350)				$ 23,301	$ 0
Increase (Decrease) in Stockholders' Equity
Conversion of preferred stock into common stock	0				$ (8)			8
Issuance of stock awards - shares							349
Issuance of stock awards - value	0						$ 4	(4)
Stock awards - amortization	1,990							1,990
Redemption of preferred stock	0
Forfeiture of stock awards - shares							(115)
Forfeiture of stock awards - value	(932)						$ (1)	0			(931)
Conversion of operating partnership units into common shares - shares							5
Conversion of operating partnership units into common shares, Value	44							44
Allocation to redeemable noncontrolling interests	(1,519)							(1,519)
Contribution from noncontrolling interests	5,069														5,069
Distribution to noncontrolling interests	(7,054)														(7,054)
Dividends, Common Stock				$ (5,037)										$ (5,037)
Preferred dividends	(522)	$ (12,558)	$ (6,798)									$ (12,558)	$ (6,798)			(522)
Issuance of preferred equity - consolidated joint venture	40,994															40,994
Foreign exchange translation										(45)							$ (45)
Net income (loss)											9,463				184	522	10,169
Comprehensive Income (Loss)	10,124																10,124
Shares, Issued - ending balance at Jun. 30, 2014					12,948		124,290
Stockholders' Equity, ending balance at Jun. 30, 2014	338,031				$ 478,766		$ 1,243	2,354,847		24,892	(2,584,211)				21,500	40,994
Shares, Issued - beginning balance at Dec. 31, 2014					12,947		124,605
Stockholders' Equity, beginning balance at Dec. 31, 2014	362,867				$ 478,749		$ 1,246	2,353,666		0	(2,530,671)				18,435	41,442
Increase (Decrease) in Stockholders' Equity
Issuance of common stock - shares							18,400
Issuance of common stock	198,720						$ 184	198,536
Issuance of stock awards - shares							325
Issuance of stock awards - value	650						$ 3	647
Stock awards - amortization	3,044							3,044
Redemption of Preferred Stock, Shares						(68)
Redemption of preferred stock	(6,096)		(169,986)			$ (169,412)			$ 5,522				(6,096)
Forfeiture of stock awards - shares							(2)
Forfeiture of stock awards - value	(8)						$ 0	0			(8)
Conversion of operating partnership units into common shares, Value	0
Allocation to redeemable noncontrolling interests	439							439
Contribution from noncontrolling interests	1,908														1,908
Distribution to noncontrolling interests	(15,978)														(15,978)
Dividends, Common Stock				$ (11,607)										$ (11,607)
Preferred dividends	(707)	$ (12,558)	$ (5,023)								0	$ (12,558)	$ (5,023)			(707)
Issuance of preferred equity - consolidated joint venture	1,746															1,746
Net income (loss)											3,499				4,632	707	8,838
Comprehensive Income (Loss)	8,838																$ 8,838
Shares, Issued - ending balance at Jun. 30, 2015					12,879		143,328
Stockholders' Equity, ending balance at Jun. 30, 2015	$ 362,345				$ 309,337		$ 1,433	$ 2,561,854		$ 0	$ (2,562,464)				$ 8,997	$ 43,188