CONSOLIDATED STATEMENTS OF EQUITY - USD ($) $ in Thousands	Total	Total Stockholders' Equity	Common Stock	Additional Paid-in Capital	Cumulative Distributions and Net Income (Loss)	Noncontrolling Interests
Balance (in shares) at Dec. 31, 2018			66,822,861
Balance at Dec. 31, 2018	$ 293,964	$ 291,454	$ 668	$ 547,770	$ (256,984)	$ 2,510
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	11,159	10,532			10,532	627
Issuance of common stock (in shares)			56,814
Issuance of common stock	564	564	$ 1	563
Transfers from redeemable common stock	4,537	4,537		4,537
Redemptions of common stock (in shares)			(536,820)
Redemptions of common stock	(5,107)	(5,107)	$ (6)	(5,101)
Other offering costs	(2)	(2)		(2)
Distributions declared	(1,151)	(1,151)			(1,151)
Noncontrolling interests contributions	12	0				12
Distributions to noncontrolling interests	(1,824)	0				(1,824)
Balance (in shares) at Jun. 30, 2019			66,342,855
Balance at Jun. 30, 2019	302,152	300,827	$ 663	547,767	(247,603)	1,325
Balance (in shares) at Mar. 31, 2019			66,584,729
Balance at Mar. 31, 2019	309,122	307,660	$ 666	547,775	(240,781)	1,462
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(6,301)	(6,249)			(6,249)	(52)
Issuance of common stock (in shares)			28,030
Issuance of common stock	278	278		278
Transfers from redeemable common stock	2,279	2,279		2,279
Redemptions of common stock (in shares)			(269,904)
Redemptions of common stock	(2,568)	(2,568)	$ (3)	(2,565)
Distributions declared	(573)	(573)			(573)
Distributions to noncontrolling interests	(85)	0				(85)
Balance (in shares) at Jun. 30, 2019			66,342,855
Balance at Jun. 30, 2019	$ 302,152	300,827	$ 663	547,767	(247,603)	1,325
Balance (in shares) at Dec. 31, 2019	65,866,765		65,866,765
Balance at Dec. 31, 2019	$ 277,388	276,633	$ 659	553,170	(277,196)	755
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(14,376)	(14,304)			(14,304)	(72)
Issuance of common stock (in shares)			24,645
Issuance of common stock	262	262		262
Transfers from redeemable common stock	562	562		562
Redemptions of common stock (in shares)			(77,530)
Redemptions of common stock	(824)	(824)		(824)
Other offering costs	(7)	(7)		(7)
Distributions declared	(596)	(596)			(596)
Issuance of restricted stock (in shares)			3,411,737
Issuance of restricted stock	0	0	$ 34	(34)
Noncontrolling interests contributions	$ 112	0				112
Balance (in shares) at Jun. 30, 2020	69,225,617		69,225,617
Balance at Jun. 30, 2020	$ 262,521	261,726	$ 693	553,129	(292,096)	795
Balance (in shares) at Mar. 31, 2020			69,259,122
Balance at Mar. 31, 2020	258,900	258,065	$ 693	553,136	(295,764)	835
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	3,628	3,668			3,668	(40)
Transfers from redeemable common stock	356	356		356
Redemptions of common stock (in shares)			(33,505)
Redemptions of common stock	(356)	(356)		(356)
Other offering costs	$ (7)	(7)		(7)
Balance (in shares) at Jun. 30, 2020	69,225,617		69,225,617
Balance at Jun. 30, 2020	$ 262,521	$ 261,726	$ 693	$ 553,129	$ (292,096)	$ 795