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 loss	17,460	16,781			16,781	679
Issuance of common stock (in shares)			28,784
Issuance of common stock	286	286	$ 1	285
Transfers from redeemable common stock	2,258	2,258		2,258
Redemptions of common stock (in shares)			(266,916)
Redemptions of common stock	(2,539)	(2,539)	$ (3)	(2,536)
Distributions declared	(578)	(578)			(578)
Other offering costs	(2)	(2)		(2)
Noncontrolling interests contributions	12	0				12
Distributions to noncontrolling interests	(1,739)	0				(1,739)
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
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
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 loss	(18,004)	(17,972)			(17,972)	(32)
Net loss	(17,639)
Issuance of common stock (in shares)			24,645
Issuance of common stock	262	262		262
Transfers from redeemable common stock	206	206		206
Redemptions of common stock (in shares)			(44,025)
Redemptions of common stock	(468)	(468)		(468)
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 Mar. 31, 2020	69,259,122		69,259,122
Balance at Mar. 31, 2020	$ 258,900	$ 258,065	$ 693	$ 553,136	$ (295,764)	$ 835