CONSOLIDATED STATEMENTS OF EQUITY (USD $) In Thousands, except Share data, unless otherwise specified	Series D Cumulative Redeemable Preferred Stock Preferred Stock	Series D Cumulative Redeemable Preferred Stock Cumulative Dividends	Common Stock	Additional Paid In Capital	Retained Earnings	Cumulative Dividends	Non-Controlling Interest in Consolidated Joint Ventures	Total
Beginning Balance at Dec. 31, 2013	$ 115,000		$ 1,809	$ 2,068,721	$ 224,364	$ (511,444)	$ 53,949	$ 1,952,399
Beginning Balance (in shares) at Dec. 31, 2013	4,600,000		180,858,699
Increase (Decrease) in Stockholders' Equity
Net proceeds from sale of common stock			181	263,442				263,623
Net proceeds from sale of common stock (in shares)			18,099,460
Vesting of restricted common stock			4	3,546				3,550
Vesting of restricted common stock (in shares)			489,050
Distributions to non-controlling interests							(2,116)	(2,116)
Common stock dividends and dividends payable at $0.10 per share year to date						(19,237)		(19,237)
Series D preferred dividends and dividends payable at $1.00 per share year to date		(4,600)						(4,600)
Net income					36,154		3,885	40,039
Ending Balance at Jun. 30, 2014	$ 115,000		$ 1,994	$ 2,335,709	$ 260,518	$ (535,281)	$ 55,718	$ 2,233,658
Ending Balance (in shares) at Jun. 30, 2014	4,600,000		199,447,209