Net Income Per Share Attributable to Cooper-Standard Holdings Inc - Preferred Shares (as if Converted) and Options (Detail) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Preferred dividends, undistributed earnings and premium allocated to participating securities that would be added back in the diluted calculation	$ 5,460	$ 3,587	$ 17,670	$ 26,139
Stock Option [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount	131,000	272,800	131,000	272,800
Stock Option [Member] | Minimum [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price	$ 52.25	$ 43.50	$ 52.25	$ 43.50
Stock Option [Member] | Maximum [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price	$ 52.50	$ 46.75	$ 52.50	$ 46.75
Convertible Preferred Stock [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount	3,479,719	4,099,692	3,751,800	4,076,150