CONSOLIDATED STATEMENTS OF EQUITY - USD ($) $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment [Member]	Common Stock [Member]	Additional Paid In Capital [Member]	Accumulated Distributions and Net Loss [Member]	Accumulated Distributions and Net Loss [Member] Cumulative Effect, Period of Adoption, Adjustment [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Accumulated Other Comprehensive Income (Loss) [Member] Cumulative Effect, Period of Adoption, Adjustment [Member]
Balance at Dec. 31, 2018	$ 517,078		$ 35	$ 795,409	$ (283,859)		$ 5,493
Balance (ASU 2017-12 [Member]) at Dec. 31, 2018						$ 134		$ (134)
Balance (ASU 2016-02 [Member]) at Dec. 31, 2018		$ (24)				$ (24)
Balance, shares at Dec. 31, 2018			35,343,256
Distributions declared	(43,162)				(43,162)
Proceeds from distribution reinvestment plan	19,642		$ 1	19,641
Proceeds from distribution reinvestment plan, shares			949,012
Shares repurchased	(9,381)			(9,381)
Shares repurchased, shares			(494,435)
Unrealized gain (loss) on derivatives	(11,513)						(11,513)
Reclassification adjustment for amounts included in net loss	(754)						(754)
Equity based compensation	53			53
Equity based compensation, shares			1,555
Net loss	(11,420)				(11,420)
Balance at Dec. 31, 2019	460,519		$ 36	805,722	(338,331)		(6,908)
Balance, shares at Dec. 31, 2019			35,799,388
Distributions declared	(8,173)				(8,173)
Proceeds from distribution reinvestment plan	4,547			4,547
Proceeds from distribution reinvestment plan, shares			225,940
Shares repurchased	(127)			(127)
Shares repurchased, shares			(6,730)
Unrealized gain (loss) on derivatives	(16,497)						(16,497)
Reclassification adjustment for amounts included in net loss	5,837						5,837
Equity based compensation	68			68
Equity based compensation, shares			3,770
Net loss	(10,388)				(10,388)
Balance at Dec. 31, 2020	$ 443,959		$ 36	810,210	(348,719)		(17,568)
Balance, shares at Dec. 31, 2020	36,022,368		36,022,368
Rescission of Q1 2020 distribution (see Note 8)	$ 8,173				8,173
Distributions declared	(14,655)				(14,655)
Proceeds from distribution reinvestment plan	3,749			3,749
Proceeds from distribution reinvestment plan, shares			207,373
Shares repurchased	(2,777)			(2,777)
Shares repurchased, shares			(192,023)
Unrealized gain (loss) on derivatives	2,445						2,445
Reclassification adjustment for amounts included in net loss	7,654						7,654
Equity based compensation	51			51
Equity based compensation, shares			3,210
Net loss	(2,503)				(2,503)
Balance at Dec. 31, 2021	$ 437,923		$ 36	$ 811,233	$ (365,877)		$ (7,469)
Balance, shares at Dec. 31, 2021	36,040,928		36,040,928