CONSOLIDATED STATEMENTS OF OPERATIONS (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Statement [Abstract]
Property operating expenses from related parties	$ 0	$ 10	$ 46
General and administrative from related parties	$ 213	$ 240	$ 237