CONSOLIDATED STATEMENTS OF EQUITY - USD ($) $ in Thousands	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, 2018	$ 115,000			$ 75,000			$ 2,282	$ 2,728,684	$ 1,182,722	$ (1,440,202)	$ 47,685	$ 2,711,171
Beginning Balance (in shares) at Dec. 31, 2018	4,600,000			3,000,000			228,246,247
Increase (Decrease) in Stockholders' Equity
Amortization of deferred stock compensation								2,221				2,221
Issuance of restricted common stock, net							$ 4	(4,439)				(4,435)
Issuance of restricted common stock, net (in shares)							345,132
Forfeiture of restricted common stock (in shares)							(3,932)
Common stock distributions and distributions payable										(11,429)		(11,429)
Preferred stock dividends and dividends payable		$ (1,998)	$ (1,998)		$ (1,209)	$ (1,209)
Distributions to noncontrolling interest											(1,950)	(1,950)
Net (loss) income									16,317		1,599	17,916
Ending Balance at Mar. 31, 2019	$ 115,000			$ 75,000			$ 2,286	2,726,466	1,199,039	(1,454,838)	47,334	2,710,287
Ending Balance (in shares) at Mar. 31, 2019	4,600,000			3,000,000			228,587,447
Beginning Balance at Dec. 31, 2019	$ 115,000			$ 75,000			$ 2,249	2,683,913	1,318,455	(1,619,779)	46,233	2,621,071
Beginning Balance (in shares) at Dec. 31, 2019	4,600,000			3,000,000			224,855,351
Increase (Decrease) in Stockholders' Equity
Amortization of deferred stock compensation								2,324				2,324
Issuance of restricted common stock, net							$ 4	(3,996)				(3,992)
Issuance of restricted common stock, net (in shares)							456,219
Forfeiture of restricted common stock (in shares)							(355)
Common stock distributions and distributions payable										(10,777)		(10,777)
Preferred stock dividends and dividends payable		$ (1,998)	$ (1,998)		$ (1,209)	$ (1,209)
Distributions to noncontrolling interest											(2,000)	(2,000)
Repurchases of outstanding common stock							$ (98)	(103,796)				(103,894)
Repurchases of outstanding common stock (in shares)							(9,770,081)
Net (loss) income									(162,061)		(458)	(162,519)
Ending Balance at Mar. 31, 2020	$ 115,000			$ 75,000			$ 2,155	$ 2,578,445	$ 1,156,394	$ (1,633,763)	$ 43,775	$ 2,337,006
Ending Balance (in shares) at Mar. 31, 2020	4,600,000			3,000,000			215,541,134