CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Statement of Comprehensive Income [Abstract]
Net income	$ 138,573	$ 140,439	$ 111,770
Other comprehensive income (loss):
Currency translation adjustment	49,600	(13,930)	(80,331)
Benefit plan liabilities adjustment, net of tax	(3,137)	(13,488)	2,737
Fair value change of derivatives, net of tax	73	810	(269)
Other comprehensive income (loss), net of tax	46,536	(26,608)	(77,863)
Comprehensive income	185,109	113,831	33,907
Comprehensive (income) loss attributable to noncontrolling interests	(4,874)	(341)	451
Comprehensive income attributable to Cooper-Standard Holdings Inc.	$ 180,235	$ 113,490	$ 34,358