Consolidated Statements of Comprehensive (Loss) Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Statement of Comprehensive Income [Abstract]
Net income	$ 6,785	$ 7,061	$ 7,631
Other comprehensive loss:
Foreign currency translation adjustments	(3,234)	(4,572)	(4,600)
Minimum pension liability, net of tax	(5,957)	2,206	(6,380)
Other comprehensive loss	(9,191)	(2,366)	(10,980)
Comprehensive (loss) income	(2,406)	4,695	(3,349)
Less: Comprehensive (loss) income attributed to noncontrolling interests	0	(35)	1
Comprehensive (loss) income attributable to CVG stockholders	$ (2,406)	$ 4,730	$ (3,350)