Net Income Per Share Attributable to Cooper-Standard Holdings Inc. (Details 2) (USD $) In Thousands, except Share data, unless otherwise specified	7 Months Ended	12 Months Ended
	Dec. 31, 2010	Dec. 31, 2012	Dec. 31, 2011
Preferred shares (as if converted) and options
Preferred dividends, undistributed earnings and premium allocated to participating securities that would be added back in the diluted calculation	$ 11,853	$ 26,074	$ 27,584
Stock Options [Member]
Preferred shares (as if converted) and options
Antidilutive securities excluded from computation of Earnings Per Share, Amount		519,100	144,000
Stock Options [Member] | Maximum [Member]
Preferred shares (as if converted) and options
Exercise price		$ 52.50	$ 46.75
Stock Options [Member] | Minimum [Member]
Preferred shares (as if converted) and options
Exercise price		$ 43.50	$ 43.50
Convertible Preferred Stock [Member]
Preferred shares (as if converted) and options
Antidilutive securities excluded from computation of Earnings Per Share, Amount	4,335,188	4,077,284	4,351,476