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, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Earnings Per Share [Abstract]
Net income attributable to Cooper-Standard Holdings Inc.	$ 36,496	$ 13,194	$ 57,483	$ 32,929
Increase in fair value of share-based awards	12	94	17	0
Diluted net income available to Cooper-Standard Holdings Inc. common stockholders	$ 36,508	$ 13,288	$ 57,500	$ 32,929
Basic weighted average shares of common stock outstanding	17,077,732	16,919,521	17,057,620	16,788,787
Dilutive effect of:
Restricted common stock	183,640	199,644	189,337	148,797
Warrants	889,443	1,008,182	842,670	1,023,260
Options	259,652	302,879	234,445	102,900
Diluted weighted average shares of common stock outstanding	18,410,467	18,430,226	18,324,072	18,063,744
Basic net income per share attributable to Cooper-Standard Holdings Inc.	$ 2.14	$ 0.78	$ 3.37	$ 1.96
Diluted net income per share attributable to Cooper-Standard Holdings Inc.	$ 1.98	$ 0.72	$ 3.14	$ 1.82