Net Income (Loss) 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		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Earnings Per Share [Abstract]
Net income available to Cooper-Standard Holdings Inc. common stockholders	$ 4,381	$ (4,877)	$ (240,426)	$ 134,913
Basic weighted average shares of common stock outstanding	16,927,924	16,880,736	16,908,940	17,240,366
Dilutive effect of common stock equivalents	87,031	0	0	64,428
Diluted weighted average shares of common stock outstanding	17,014,955	16,880,736	16,908,940	17,304,794
Basic net income per share attributable to Cooper-Standard Holdings Inc.	$ 0.26	$ (0.29)	$ (14.22)	$ 7.83
Diluted net income per share attributable to Cooper-Standard Holdings Inc.	$ 0.26	$ (0.29)	$ (14.22)	$ 7.80