CONSOLIDATED STATEMENT OF CHANGES IN EQUITY - 6 months ended Jun. 30, 2015 - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Loss	Accumulated Deficit	Total Stockholders' Equity	Non- controlling Interests
Beginning Balance (in shares) at Dec. 31, 2014		162,181,939
Beginning Balance at Dec. 31, 2014	$ 1,195,677	$ 1,622	$ 1,401,619	$ (816)	$ (255,478)	$ 1,146,947	$ 48,730
Increase (Decrease) in Stockholders' Equity [Roll Forward]
OP units converted to common stock (in shares)		92,751
OP units converted to common stock	0	$ 1	973			974	(974)
Equity-based compensation (in shares)		281,499
Equity-based compensation	2,437	$ 3	199			202	2,235
Distributions to non-controlling interest holders	(1,361)						(1,361)
Dividends declared	(37,333)				(37,333)	(37,333)
Net loss	(17,376)				(16,858)	(16,858)	(518)
Other comprehensive loss	(754)			(754)		(754)
Ending Balance (in shares) at Jun. 30, 2015		162,556,189
Ending Balance at Jun. 30, 2015	$ 1,141,290	$ 1,626	$ 1,402,791	$ (1,570)	$ (309,669)	$ 1,093,178	$ 48,112