CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)
Net (loss) / income	$ (67,468)	$ (37,351)	$ (123,149)	$ 61,502
Other comprehensive (loss) income:
Amount recognized in other comprehensive income (loss) on derivative	(2,003)	5,207	(6,359)	(8,901)
Amount reclassified from AOCI to net (loss) income on derivative	319	1,342	1,228	1,502
Foreign subsidiaries liquidation				(730)
Foreign currency translation adjustments				63
Comprehensive (loss) income	$ (69,152)	$ (30,802)	$ (128,280)	$ 53,436