Condensed Consolidated Statements of Other Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Condensed Consolidated Statements of Other Comprehensive Income (Loss)
Net income	$ 1,612	$ 3,903	$ 4,191	$ 16,436
Other comprehensive income (loss):
Unrealized gain (loss) on derivative financial instruments	(677)	2,348	(6,792)	(2,466)
Total other comprehensive income ( loss)	(677)	2,348	(6,792)	(2,466)
Comprehensive income (loss)	$ 935	$ 6,251	$ (2,601)	$ 13,970