CONSOLIDATED STATEMENT OF EQUITY (Unaudited) - USD ($)	Total	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Income (loss)	Accumulated Deficit	Non-Controlling Interest
Beginning balance at Dec. 31, 2017	$ 243,347,000	$ 133,000	$ 202,225,000	$ 1,346,000	$ (33,292,000)	$ 72,935,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Distributions - common stock - $0.20 per share for all periods, $0.22 per share for the three months ended September 30, 2019	(2,897,000)				(2,897,000)
Restricted stock vesting	0	1,000	(1,000)
Compensation expense - restricted stock and restricted stock units	297,000		297,000
Consolidation of investment in limited partnership	12,370,000					12,370,000
Contributions from non-controlling interests	18,088,000					18,088,000
Distributions to non-controlling interests	(32,020,000)					(32,020,000)
Purchase of non-controlling interest	(250,000)		(82,000)			(168,000)
Shares issued through equity offering program, net	1,401,000	2,000	1,399,000
Net income (loss)	49,908,000				25,222,000	24,686,000
Other comprehensive income (loss)	1,132,000			786,000		346,000
Comprehensive income (loss)	51,040,000
Ending balance at Mar. 31, 2018	291,376,000	136,000	203,838,000	2,132,000	(10,967,000)	96,237,000
Beginning balance at Dec. 31, 2017	243,347,000	133,000	202,225,000	1,346,000	(33,292,000)	72,935,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	39,799,000
Other comprehensive income (loss)	1,846,000
Comprehensive income (loss)	41,645,000
Ending balance at Sep. 30, 2018	296,485,000	150,000	220,135,000	2,629,000	(24,927,000)	98,498,000
Beginning balance at Mar. 31, 2018	291,376,000	136,000	203,838,000	2,132,000	(10,967,000)	96,237,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Distributions - common stock - $0.20 per share for all periods, $0.22 per share for the three months ended September 30, 2019	(2,970,000)				(2,970,000)
Compensation expense - restricted stock and restricted stock units	361,000		361,000
Contributions from non-controlling interests	9,930,000					9,930,000
Distributions to non-controlling interests	(2,163,000)					(2,163,000)
Shares issued through equity offering program, net	10,525,000	8,000	10,517,000
Net income (loss)	(5,971,000)				(4,689,000)	(1,282,000)
Other comprehensive income (loss)	398,000			276,000		122,000
Comprehensive income (loss)	(5,573,000)
Ending balance at Jun. 30, 2018	301,486,000	144,000	214,716,000	2,408,000	(18,626,000)	102,844,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Distributions - common stock - $0.20 per share for all periods, $0.22 per share for the three months ended September 30, 2019	(3,190,000)				(3,190,000)
Compensation expense - restricted stock and restricted stock units	15,000		15,000
Distributions to non-controlling interests	(1,525,000)					(1,525,000)
Purchase of non-controlling interest	(4,924,000)		(3,035,000)			(1,889,000)
Shares issued through equity offering program, net	8,486,000	6,000	8,480,000
Shares repurchased	(41,000)		(41,000)
Net income (loss)	(4,138,000)				(3,111,000)	(1,027,000)
Other comprehensive income (loss)	316,000			221,000		95,000
Comprehensive income (loss)	(3,822,000)
Ending balance at Sep. 30, 2018	296,485,000	150,000	220,135,000	2,629,000	(24,927,000)	98,498,000
Beginning balance at Dec. 31, 2018	290,360,000	150,000	216,981,000	1,688,000	(20,044,000)	91,585,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Distributions - common stock - $0.20 per share for all periods, $0.22 per share for the three months ended September 30, 2019	(3,221,000)				(3,221,000)
Restricted stock vesting	0	2,000	(2,000)
Compensation expense - restricted stock and restricted stock units	365,000		365,000
Consolidation of investment in limited partnership	6,047,000					6,047,000
Contributions from non-controlling interests	264,000					264,000
Distributions to non-controlling interests	(2,345,000)					(2,345,000)
Net income (loss)	(5,083,000)				(4,247,000)	(836,000)
Other comprehensive income (loss)	(869,000)			(606,000)		(263,000)
Comprehensive income (loss)	(5,952,000)
Ending balance at Mar. 31, 2019	285,518,000	152,000	217,344,000	1,082,000	(27,512,000)	94,452,000
Beginning balance at Dec. 31, 2018	290,360,000	150,000	216,981,000	1,688,000	(20,044,000)	91,585,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(6,988,000)
Other comprehensive income (loss)	(2,544,000)
Comprehensive income (loss)	(9,532,000)
Ending balance at Sep. 30, 2019	275,127,000	152,000	218,817,000	(75,000)	(35,331,000)	91,564,000
Beginning balance at Mar. 31, 2019	285,518,000	152,000	217,344,000	1,082,000	(27,512,000)	94,452,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Distributions - common stock - $0.20 per share for all periods, $0.22 per share for the three months ended September 30, 2019	(3,220,000)				(3,220,000)
Compensation expense - restricted stock and restricted stock units	373,000		373,000
Contributions from non-controlling interests	3,027,000					3,027,000
Distributions to non-controlling interests	(2,264,000)					(2,264,000)
Shares repurchased	(46,000)		(46,000)
Net income (loss)	(5,250,000)				(4,317,000)	(933,000)
Other comprehensive income (loss)	(1,353,000)			(939,000)		(414,000)
Comprehensive income (loss)	(6,603,000)
Ending balance at Jun. 30, 2019	276,785,000	152,000	217,671,000	143,000	(35,049,000)	93,868,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Distributions - common stock - $0.20 per share for all periods, $0.22 per share for the three months ended September 30, 2019	(3,554,000)				(3,554,000)
Compensation expense - restricted stock and restricted stock units	372,000		372,000
Contributions from non-controlling interests	1,237,000					1,237,000
Distributions to non-controlling interests	(3,510,000)					(3,510,000)
Shares issued through equity offering program, net	774,000		774,000
Net income (loss)	3,345,000				3,272,000	73,000
Other comprehensive income (loss)	(322,000)			(218,000)		(104,000)
Comprehensive income (loss)	3,023,000
Ending balance at Sep. 30, 2019	$ 275,127,000	$ 152,000	$ 218,817,000	$ (75,000)	$ (35,331,000)	$ 91,564,000