CONSOLIDATED AND COMBINED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	5 Months Ended	7 Months Ended	12 Months Ended
	Dec. 31, 2015	Jul. 31, 2015	Dec. 31, 2017	Dec. 31, 2016
Net (loss) income	$ (14,437)		$ 23,562	$ (111,560)
Other comprehensive (loss) income:
Foreign currency translation adjustments	(5,580)		(8,038)	1,263
Unrealized loss on hedging activity			(358)
Pension and other postretirement benefit plans adjustment, net of tax of $0, $11, $11, and $0, respectively	21		0	(77)
Comprehensive income (loss), net of tax	$ (19,996)		$ 15,166	$ (110,374)
Predecessor
Net (loss) income		$ (14,057)
Other comprehensive (loss) income:
Foreign currency translation adjustments		(1,725)
Pension and other postretirement benefit plans adjustment, net of tax of $0, $11, $11, and $0, respectively		0
Comprehensive income (loss), net of tax		$ (15,782)