CONSOLIDATED STATEMENTS OF EQUITY - 3 months ended Mar. 31, 2017 - USD ($)	Series E Cumulative Redeemable Preferred Stock Preferred Stock	Series E Cumulative Redeemable Preferred Stock Cumulative dividends and distributions	Series E Cumulative Redeemable Preferred Stock	Series F Cumulative Redeemable Preferred Stock Preferred Stock	Series F Cumulative Redeemable Preferred Stock Cumulative dividends and distributions	Series F Cumulative Redeemable Preferred Stock	Common Stock	Additional Paid In Capital	Retained Earnings	Cumulative dividends and distributions	Noncontrolling Interest in Consolidated Joint Venture	Total
Beginning Balance at Dec. 31, 2016	$ 115,000,000			$ 75,000,000			$ 2,201,000	$ 2,596,620,000	$ 786,901,000	$ (1,092,952,000)	$ 49,062,000	$ 2,531,832,000
Beginning Balance (in shares) at Dec. 31, 2016	4,600,000			3,000,000			220,073,140
Increase (Decrease) in Stockholders' Equity
Deferred stock compensation, net							$ 3,000	(1,896,000)				(1,893,000)
Deferred stock compensation, net (in shares)							344,277
Common stock distributions and distributions payable										(11,021,000)		(11,021,000)
Preferred stock dividends and dividends payable		$ (1,998,000)	$ (1,998,000)		$ (1,209,000)	$ (1,209,000)
Distributions to noncontrolling interest											(2,325,000)	(2,325,000)
Net income									61,835,000		1,992,000	63,827,000
Ending Balance at Mar. 31, 2017	$ 115,000,000			$ 75,000,000			$ 2,204,000	$ 2,594,724,000	$ 848,736,000	$ (1,107,180,000)	$ 48,729,000	$ 2,577,213,000
Ending Balance (in shares) at Mar. 31, 2017	4,600,000			3,000,000			220,417,417