Consolidated Statement of Changes in Equity - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Parent [Member]	Noncontrolling Interest [Member]	Total
Balance (in shares) at Dec. 31, 2016	38,493,430
Balance at Dec. 31, 2016	$ 385	$ 843,149	$ (286,852)	$ 556,682	$ 2,761	$ 559,443
Issuance of common stock, net (in shares)	1,125,403
Issuance of common stock, net	$ 11	18,597		18,608		18,608
Repurchase and retirement of common stock (in shares)	(113,091)
Repurchase and retirement of common stock	$ (1)	(762)		(763)		(763)
Net loss before dividends and accretion			(71,387)	(71,387)		(71,387)
Net income (loss) attributable to non-controlling interest					244	244
Dividends paid or declared			(2,014)	(2,014)		(2,373)
Dividends paid or declared, Non-controlling Interest					(359)
Deemed dividend related to beneficial conversion feature of Class C Units		4,535	(4,535)
Cash distributions on Class C Units			(7,862)	(7,862)		(7,862)
Accretion on Class C Units			(1,668)	(1,668)		(1,668)
PIK distributions on Class C Units			(5,241)	(5,241)		(5,241)
Share-based payments		499		499		499
Waiver of obligation from Former Advisor		5,822		5,822		5,822
Less: Net (loss) income attributable to non-controlling interest					244	244
Balance (in shares) at Dec. 31, 2017	39,505,742
Balance at Dec. 31, 2017	$ 395	871,840	(379,559)	492,676	2,646	495,322
Repurchase and retirement of common stock (in shares)	(378,324)
Repurchase and retirement of common stock	$ (4)	(3,071)		(3,075)		(3,075)
Net loss before dividends and accretion			(86,138)	(86,138)		(86,138)
Net income (loss) attributable to non-controlling interest					85	85
Dividends paid or declared, Non-controlling Interest					(196)	(196)
Cash distributions on Class C Units			(12,498)	(12,498)		(12,498)
Accretion on Class C Units			(2,581)	(2,581)		(2,581)
PIK distributions on Class C Units			(8,332)	(8,332)		(8,332)
Share-based payments		1,482		1,482		1,482
Less: Net (loss) income attributable to non-controlling interest					85	$ 85
Share-based payments (in shares)	7,210
Balance (in shares) at Dec. 31, 2018	39,134,628					39,134,628
Balance at Dec. 31, 2018	$ 391	870,251	(489,108)	381,534	2,535	$ 384,069
Repurchase and retirement of common stock (in shares)	(2,177)
Repurchase and retirement of common stock		(20)		(20)		(20)
Net loss before dividends and accretion			(163,419)	(163,419)		(163,419)
Net income (loss) attributable to non-controlling interest					(42)	(42)
Dividends paid or declared, Non-controlling Interest					(218)	(218)
Cash distributions on Class C Units			(27,772)	(27,772)		(27,772)
Accretion on Class C Units			(4,798)	(4,798)		(4,798)
PIK distributions on Class C Units			(18,514)	(18,514)		(18,514)
Less: Net (loss) income attributable to non-controlling interest					(42)	(42)
Share-based payments (in shares)	18,750
Share-based payments	$ 1	1,483		1,484		$ 1,484
Balance (in shares) at Dec. 31, 2019	39,151,201					39,151,201
Balance at Dec. 31, 2019	$ 392	$ 871,714	$ (703,611)	$ 168,495	$ 2,275	$ 170,770