Selected Quarterly Information - Selected Quarterly Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Selected Quarterly Financial Information [Abstract]
Sales	$ 937,914	$ 869,016	$ 909,145	$ 902,051	$ 875,434	$ 855,656	$ 879,304	$ 862,497	$ 3,618,126	$ 3,472,891	$ 3,342,804
Gross profit	178,144	150,829	172,240	170,085	168,385	164,672	171,961	159,824	671,298	664,842	587,113
Net income	28,961	25,458	41,650	42,504	32,016	36,646	40,240	31,537	138,573	140,439	111,770
Net income attributable to Cooper-Standard Holdings Inc.	$ 28,501	$ 24,640	$ 40,456	$ 41,706	$ 31,114	$ 36,362	$ 40,189	$ 31,323	$ 135,303	$ 138,988	$ 111,880
Basic net income per share attributable to Cooper-Standard Holdings Inc. (in dollars per share)	$ 1.60	$ 1.39	$ 2.26	$ 2.35	$ 1.76	$ 2.08	$ 2.33	$ 1.80	$ 7.61	$ 7.96	$ 6.50
Diluted net income per share attributable to Cooper-Standard Holdings Inc. (in dollars per share)	$ 1.53	$ 1.32	$ 2.14	$ 2.20	$ 1.65	$ 1.94	$ 2.16	$ 1.67	$ 7.21	$ 7.42	$ 6.08