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, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Earnings Per Share [Abstract]
Net income available to Cooper-Standard Holdings Inc. common stockholders	$ (13,853)	$ 32,156	$ 127,983	$ 130,825
Basic weighted average shares of common stock outstanding	16,880,736	17,828,358	17,240,366	17,939,544
Dilutive effect of common stock equivalents	0	380,810	64,428	409,072
Diluted weighted average shares of common stock outstanding	16,880,736	18,209,168	17,304,794	18,348,616
Basic net income per share attributable to Cooper-Standard Holdings Inc.	$ (0.82)	$ 1.80	$ 7.42	$ 7.29
Diluted net income per share attributable to Cooper-Standard Holdings Inc.	$ (0.82)	$ 1.77	$ 7.40	$ 7.13