Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 3,818	$ 3,639	$ 12,769	$ 19,339
Other comprehensive income/(loss):
Unrealized losses on interest rate caps	(7)	(15)	(75)	(94)
Amortization of interest rate cap fees	23	23	69	69
Total other comprehensive income/(loss):	16	8	(6)	(25)
Total comprehensive income	$ 3,834	$ 3,647	$ 12,763	$ 19,314