CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 3,345	$ (4,138)	$ (6,988)	$ 39,799
Other comprehensive (loss) income:
Unrealized (loss) gain on derivative instruments	(322)	316	(2,544)	1,846
Other comprehensive (loss) income	(322)	316	(2,544)	1,846
Comprehensive income (loss)	3,023	(3,822)	(9,532)	41,645
Comprehensive loss (income) attributable to non-controlling interests	31	934	2,477	(22,938)
Comprehensive income (loss) attributable to common stockholders	$ 3,054	$ (2,888)	$ (7,055)	$ 18,707