CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 25,876	$ 1,950	$ 976
Other comprehensive income (loss): cash flow hedge adjustment	6,693	(1,742)	(1,402)
Comprehensive income (loss)	32,569	208	(426)
Less: comprehensive (income) loss attributable to noncontrolling interests	(965)	(36)	(9)
Comprehensive income (loss) attributable to common stockholders	$ 31,604	$ 172	$ (435)