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)	13,449	11,304			11,304	2,145
Issuance of common stock (in shares)			84,248
Issuance of common stock	835	835	$ 1	834
Transfers from redeemable common stock	6,577	6,577		6,577
Redemptions of common stock (in shares)			(782,391)
Redemptions of common stock	(7,433)	(7,433)	$ (8)	(7,425)
Distributions declared	(1,721)	(1,721)			(1,721)
Other offering costs	(6)	(6)		(6)
Noncontrolling interests contributions	12	0				12
Distributions to noncontrolling interests	(3,793)	0				(3,793)
Balance (in shares) at Sep. 30, 2019			66,124,718
Balance at Sep. 30, 2019	301,884	301,010	$ 661	547,750	(247,401)	874
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
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	2,290	772			772	1,518
Issuance of common stock (in shares)			27,434
Issuance of common stock	271	271		271
Transfers from redeemable common stock	2,040	2,040		2,040
Redemptions of common stock (in shares)			(245,571)
Redemptions of common stock	(2,326)	(2,326)	$ (2)	(2,324)
Distributions declared	(570)	(570)			(570)
Other offering costs	(4)	(4)		(4)
Distributions to noncontrolling interests	(1,969)	0				(1,969)
Balance (in shares) at Sep. 30, 2019			66,124,718
Balance at Sep. 30, 2019	$ 301,884	301,010	$ 661	547,750	(247,401)	874
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)	(21,912)	(21,797)			(21,797)	(115)
Issuance of common stock (in shares)			24,645
Issuance of common stock	262	262		262
Transfers from redeemable common stock	567	567		567
Redemptions of common stock (in shares)			(78,131)
Redemptions of common stock	(830)	(830)		(830)
Distributions declared	(596)	(596)			(596)
Other offering costs	(6)	(6)		(6)
Issuance of restricted stock (in shares)			3,411,737
Issuance of restricted stock	0	0	$ 34	(34)
Noncontrolling interests contributions	112	0				112
Distributions to noncontrolling interests	$ (28)	0				(28)
Balance (in shares) at Sep. 30, 2020	69,225,016		69,225,016
Balance at Sep. 30, 2020	$ 254,957	254,233	$ 693	553,129	(299,589)	724
Balance (in shares) at Jun. 30, 2020			69,225,617
Balance at Jun. 30, 2020	262,521	261,726	$ 693	553,129	(292,096)	795
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(7,536)	(7,493)			(7,493)	(43)
Transfers from redeemable common stock	6	6		6
Redemptions of common stock (in shares)			(601)
Redemptions of common stock	(6)	(6)		(6)
Distributions to noncontrolling interests	$ (28)	0				(28)
Balance (in shares) at Sep. 30, 2020	69,225,016		69,225,016
Balance at Sep. 30, 2020	$ 254,957	$ 254,233	$ 693	$ 553,129	$ (299,589)	$ 724