CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Income Statement [Abstract]
Sales	$ 668,967	$ 654,890
Cost of products sold	600,675	611,747
Gross profit	68,292	43,143
Selling, administration & engineering expenses	58,054	70,671
Gain on sale of business	(891)	0
Amortization of intangibles	1,772	4,450
Restructuring charges	21,047	7,276
Impairment of assets held for sale	0	74,079
Other impairment charges	0	977
Operating loss	(11,690)	(114,310)
Interest expense, net of interest income	(17,784)	(10,237)
Equity in earnings of affiliates	786	1,431
Other expense, net	(5,089)	(3,440)
Loss before income taxes	(33,777)	(126,556)
Income tax expense (benefit)	936	(14,117)
Net loss	(34,713)	(112,439)
Net loss attributable to noncontrolling interests	849	1,851
Net loss attributable to Cooper-Standard Holdings Inc.	$ (33,864)	$ (110,588)
Earnings per share
Basic	$ (2.00)	$ (6.55)
Diluted	$ (2.00)	$ (6.55)