Net Income Per Share Attributable to Cooper-Standard Holdings Inc. - Basic and Diluted Net Income Per Share Attributable (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Earnings Per Share [Abstract]
Net income attributable to Cooper-Standard Holdings Inc.	$ 40,456	$ 40,189	$ 82,162	$ 71,512
Increase (decrease) in fair value of share-based awards	(24)	12	(6)	12
Diluted net income available to Cooper-Standard Holdings Inc. common stockholders	$ 40,432	$ 40,201	$ 82,156	$ 71,524
Basic weighted average shares of common stock outstanding	17,863,203	17,242,277	17,803,430	17,342,321
Dilutive effect of common stock equivalents	1,002,764	1,349,370	1,116,161	1,326,802
Diluted weighted average shares of common stock outstanding	18,865,967	18,591,647	18,919,591	18,669,123
Basic net income per share attributable to Cooper-Standard Holdings Inc. (usd per share)	$ 2.26	$ 2.33	$ 4.61	$ 4.12
Diluted net income per share attributable to Cooper-Standard Holdings Inc. (usd per share)	$ 2.14	$ 2.16	$ 4.34	$ 3.83