Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Statement of Comprehensive Income [Abstract]
Net (loss) income	$ 44,512	$ (1,705)	$ 6,785
Other comprehensive (loss) income:
Foreign currency translation adjustments	(5,675)
Foreign currency translation adjustments		7,141	(3,234)
Minimum pension liability, net of tax	(1,057)	469	(5,957)
Derivative instrument	496	0	0
Other comprehensive (loss) income	(6,236)	7,610	(9,191)
Comprehensive income (loss) attributable to CVG stockholders	$ 38,276	$ 5,905	$ (2,406)