Net Income Per Share Attributable to Cooper-Standard Holdings Inc. - Common Stock Equivalents (Detail) - Stock Option [Member] - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	0	145,900	0	145,900
Minimum [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price	$ 0	$ 64.74	$ 0	$ 64.74
Maximum [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price	$ 0	$ 70.20	$ 0	$ 70.20