CONDENSED CONSOLIDATED STATEMENTS OF NET INCOME - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Income Statement [Abstract]
Sales	$ 764,806	$ 928,262	$ 1,644,844	$ 1,895,653
Cost of products sold	666,828	776,897	1,429,318	1,573,408
Gross profit	97,978	151,365	215,526	322,245
Selling, administration & engineering expenses	74,170	76,339	161,144	156,779
Gain on sale of business	(189,910)	0	(189,910)	0
Amortization of intangibles	5,148	3,399	8,923	6,805
Restructuring charges	5,927	10,013	23,642	17,138
Impairment charges	2,188	0	2,188	0
Operating profit	200,455	61,614	209,539	141,523
Interest expense, net of interest income	(11,575)	(9,973)	(23,507)	(19,773)
Equity in earnings of affiliates	1,891	1,248	4,249	2,935
Loss on refinancing and extinguishment of debt	0	0	0	(770)
Other expense, net	(1,781)	(557)	(2,577)	(2,276)
Income before income taxes	188,990	52,332	187,704	121,639
Income tax expense	44,239	9,130	46,570	21,021
Net income	144,751	43,202	141,134	100,618
Net loss (income) attributable to noncontrolling interests	545	(1,325)	702	(1,949)
Net income attributable to Cooper-Standard Holdings Inc.	$ 145,296	$ 41,877	$ 141,836	$ 98,669
Earnings per share
Basic	$ 8.39	$ 2.33	$ 8.14	$ 5.48
Diluted	$ 8.36	$ 2.28	$ 8.11	$ 5.36