Consolidated Statements of Equity - USD ($) $ in Thousands		Total	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Income	Distributions in Excess of Earnings	Non-controlling Interests	Series A Preferred Stock Preferred Stock	Series L Preferred Stock Preferred Stock
Beginning balance (in shares) at Dec. 31, 2017			14,594,979					60,592	8,080,740
Beginning balance at Dec. 31, 2017		$ 626,705	$ 44	$ 792,631	$ 1,631	$ (399,250)	$ 890	$ 1,508	$ 229,251
Increase (Decrease) in Stockholders' Equity
Stock-based compensation expense		38		38
Common dividends	[1]	(5,473)				(5,473)
Issuance of Series A Preferred Warrants		17		17
Dividends to holders of Series A Preferred Stock ($0.34375 per share)		(493)				(493)
Reclassification of Series A Preferred Stock to permanent equity (in shares)								82,841
Reclassification of Series A Preferred Stock to permanent equity		1,885		(175)				$ 2,060
Redemption of Series A Preferred Stock		1		1
Other comprehensive income (loss)		1,183			1,183
NET INCOME (LOSS)		622				618	4
Ending balance (in shares) at Mar. 31, 2018			14,594,979					143,433	8,080,740
Ending balance at Mar. 31, 2018		624,485	$ 44	792,512	2,814	(404,598)	894	$ 3,568	$ 229,251
Beginning balance (in shares) at Dec. 31, 2017			14,594,979					60,592	8,080,740
Beginning balance at Dec. 31, 2017		626,705	$ 44	792,631	1,631	(399,250)	890	$ 1,508	$ 229,251
Increase (Decrease) in Stockholders' Equity
Reclassification of Series A Preferred Stock to permanent equity		11,517
Other comprehensive income (loss)		1,407
NET INCOME (LOSS)		2,042
Ending balance (in shares) at Sep. 30, 2018			14,598,357					566,176	8,080,740
Ending balance at Sep. 30, 2018		623,438	$ 44	791,773	3,038	(415,568)	838	$ 14,062	$ 229,251
Beginning balance (in shares) at Mar. 31, 2018			14,594,979					143,433	8,080,740
Beginning balance at Mar. 31, 2018		624,485	$ 44	792,512	2,814	(404,598)	894	$ 3,568	$ 229,251
Increase (Decrease) in Stockholders' Equity
Distributions to noncontrolling interests		(67)					(67)
Stock-based compensation expense (in shares)			3,378
Stock-based compensation expense		48		48
Common dividends	[1]	(5,474)				(5,474)
Issuance of Series A Preferred Warrants		23		23
Dividends to holders of Series A Preferred Stock ($0.34375 per share)		(662)				(662)
Reclassification of Series A Preferred Stock to permanent equity (in shares)								164,077
Reclassification of Series A Preferred Stock to permanent equity		3,730		(339)				$ 4,069
Redemption of Series A Preferred Stock		1		1
Other comprehensive income (loss)		407			407
NET INCOME (LOSS)		1,949				1,937	12
Ending balance (in shares) at Jun. 30, 2018			14,598,357					307,510	8,080,740
Ending balance at Jun. 30, 2018		624,440	$ 44	792,245	3,221	(408,797)	839	$ 7,637	$ 229,251
Increase (Decrease) in Stockholders' Equity
Stock-based compensation expense		38		38
Common dividends	[1]	(5,474)				(5,474)
Issuance of Series A Preferred Warrants		22		22
Dividends to holders of Series A Preferred Stock ($0.34375 per share)		(769)				(769)
Reclassification of Series A Preferred Stock to permanent equity (in shares)								259,066
Reclassification of Series A Preferred Stock to permanent equity		5,902		(533)				$ 6,435
Redemption of Series A Preferred Stock (in shares)								(400)
Redemption of Series A Preferred Stock		(9)		1				$ (10)
Other comprehensive income (loss)		(183)			(183)
NET INCOME (LOSS)		(529)				(528)	(1)
Ending balance (in shares) at Sep. 30, 2018			14,598,357					566,176	8,080,740
Ending balance at Sep. 30, 2018		623,438	$ 44	791,773	3,038	(415,568)	838	$ 14,062	$ 229,251
Beginning balance (in shares) at Dec. 31, 2018			14,598,357					1,281,804	8,080,740
Beginning balance at Dec. 31, 2018		617,275	$ 44	790,354	1,806	(436,883)	837	$ 31,866	$ 229,251
Increase (Decrease) in Stockholders' Equity
Stock-based compensation expense		38		38
Common dividends	[1]	(5,474)				(5,474)
Issuance of Series A Preferred Warrants		9		9
Dividends to holders of Series A Preferred Stock ($0.34375 per share)		(1,010)				(1,010)
Reclassification of Series A Preferred Stock to permanent equity (in shares)								389,577
Reclassification of Series A Preferred Stock to permanent equity		8,890		(822)				$ 9,712
Redemption of Series A Preferred Stock (in shares)								(1,500)
Redemption of Series A Preferred Stock		(38)		(1)				$ (37)
Other comprehensive income (loss)		(1,806)			(1,806)
NET INCOME (LOSS)		291,623				291,797	(174)
Ending balance (in shares) at Mar. 31, 2019			14,598,357					1,669,881	8,080,740
Ending balance at Mar. 31, 2019		909,507	$ 44	789,578	0	(151,570)	663	$ 41,541	$ 229,251
Beginning balance (in shares) at Dec. 31, 2018			14,598,357					1,281,804	8,080,740
Beginning balance at Dec. 31, 2018		617,275	$ 44	790,354	1,806	(436,883)	837	$ 31,866	$ 229,251
Increase (Decrease) in Stockholders' Equity
Extinguishment of noncontrolling interest		(113)
Reclassification of Series A Preferred Stock to permanent equity		26,729
Other comprehensive income (loss)		(1,806)
NET INCOME (LOSS)		347,046
Ending balance (in shares) at Sep. 30, 2019			14,602,149					2,450,417	8,080,740
Ending balance at Sep. 30, 2019		360,601	$ 15	788,342	0	(718,493)	499	$ 60,987	$ 229,251
Beginning balance (in shares) at Mar. 31, 2019			14,598,357					1,669,881	8,080,740
Beginning balance at Mar. 31, 2019		909,507	$ 44	789,578	0	(151,570)	663	$ 41,541	$ 229,251
Increase (Decrease) in Stockholders' Equity
Distributions to noncontrolling interests		(47)					(47)
Stock-based compensation expense (in shares)			3,556
Stock-based compensation expense		44		44
Common dividends	[1]	(5,476)				(5,476)
Issuance of Series A Preferred Warrants		31		31
Dividends to holders of Series A Preferred Stock ($0.34375 per share)		(1,150)				(1,150)
Reclassification of Series A Preferred Stock to permanent equity (in shares)								474,462
Reclassification of Series A Preferred Stock to permanent equity		10,825		(1,002)				$ 11,827
Redemption of Series A Preferred Stock (in shares)								(1,667)
Redemption of Series A Preferred Stock		(41)		4		(4)		$ (41)
NET INCOME (LOSS)		52,567				52,566	1
Ending balance (in shares) at Jun. 30, 2019			14,601,913					2,142,676	8,080,740
Ending balance at Jun. 30, 2019		966,260	$ 44	788,655	0	(105,634)	617	$ 53,327	$ 229,251
Increase (Decrease) in Stockholders' Equity
Contributions to noncontrolling interests		455					455
Distributions to noncontrolling interests		(468)					(468)
Extinguishment of noncontrolling interest		(113)					(113)
Stock-based compensation expense (in shares)			324
Stock-based compensation expense		56		56
Retirement of fractional shares		(1)		(1)
Retirement of fractional shares (in shares)			(88)
Change in par value		0	$ (29)	29
Special cash dividends ($42.00 per share)		(613,294)				(613,294)
Common dividends	[1]	(1,095)				(1,095)
Issuance of Series A Preferred Warrants		252		252
Dividends to holders of Series A Preferred Stock ($0.34375 per share)		(1,318)				(1,318)
Reclassification of Series A Preferred Stock to permanent equity (in shares)								307,856
Reclassification of Series A Preferred Stock to permanent equity		7,014		(649)				$ 7,663
Redemption of Series A Preferred Stock (in shares)								(115)
Redemption of Series A Preferred Stock		(3)						$ (3)
Other comprehensive income (loss)		0
NET INCOME (LOSS)		2,856				2,848	8
Ending balance (in shares) at Sep. 30, 2019			14,602,149					2,450,417	8,080,740
Ending balance at Sep. 30, 2019		$ 360,601	$ 15	$ 788,342	$ 0	$ (718,493)	$ 499	$ 60,987	$ 229,251

[1] All share and per share amounts have been adjusted to give retroactive effect to the one-for-three reverse stock split of our common stock effected on September 3, 2019.