Consolidated Statements of Comprehensive (Loss) Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Consolidated Statements of Comprehensive (Loss) Income
Net (loss) income	$ (91,996)	$ 5,362	$ (94,828)	$ 9,649
Other comprehensive loss, net of tax:
Foreign currency translation adjustment	(2,660)	2,901	(2,007)	(1,486)
Unrealized loss on cash flow hedges, net of tax benefit of $291 and $903	(455)	0	(1,423)	0
Reclassification of pension liability adjustments to earnings, net of tax expense of $38, $47 and $77, $93*	74	92	150	181
Other comprehensive (loss) income, net of tax	(3,041)	2,993	(3,280)	(1,305)
Comprehensive (loss) income	$ (95,037)	$ 8,355	$ (98,108)	$ 8,344