CONSOLIDATED STATEMENT OF CHANGES IN EQUITY (USD $)	Total	Common Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Loss	Accumulated Deficit	Total Stockholders' Equity	Non- controlling Interests
Beginning Balance at Dec. 31, 2014	$ 1,195,677,000	$ 1,622,000	$ 1,401,619,000	$ (816,000)	$ (255,478,000)	$ 1,146,947,000	$ 48,730,000
Beginning Balance (in shares) at Dec. 31, 2014		162,181,939
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Equity-based compensation (in shares)		281,517
Equity-based compensation	248,000	3,000	16,000			19,000	229,000
Distributions to non-controlling interest holders	(593,000)						(593,000)
Dividends declared	(18,646,000)				(18,646,000)	(18,646,000)
Net loss	(8,460,000)				(8,199,000)	(8,199,000)	(261,000)
Other comprehensive loss	(989,000)			(989,000)		(989,000)
Ending Balance at Mar. 31, 2015	$ 1,167,237,000	$ 1,625,000	$ 1,401,635,000	$ (1,805,000)	$ (282,323,000)	$ 1,119,132,000	$ 48,105,000
Ending Balance (in shares) at Mar. 31, 2015		162,463,456