CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - USD ($) $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Cooper Standard Holdings Inc Equity [Member]	Noncontrolling Interest [Member]
Beginning balance (shares) at Dec. 31, 2019			16,842,757
Beginning balance at Dec. 31, 2019	$ 875,982	$ (1,573)	$ 17	$ 490,451	$ 619,448	$ (253,741)	$ 856,175	$ 19,807
Share-based compensation, Shares			41,785
Share-based compensation, net	1,874			1,874	0		1,874
Net income (loss)	(112,439)				(110,588)		(110,588)	(1,851)
Other Comprehensive Income (Loss), Net of Tax	(36,283)					(35,776)	(35,776)	(507)
Ending balance (shares) at Mar. 31, 2020			16,884,542
Ending balance at Mar. 31, 2020	$ 727,561		$ 17	492,325	507,287	(289,517)	710,112	17,449
Beginning balance (shares) at Dec. 31, 2020	16,897,085		16,897,085
Beginning balance at Dec. 31, 2020	$ 624,111		$ 17	498,719	350,270	(241,896)	607,110	17,001
Share-based compensation, Shares			45,467
Share-based compensation, net	952			952	0		952
Net income (loss)	(34,713)				(33,864)		(33,864)	(849)
Other Comprehensive Income (Loss), Net of Tax	$ (4,404)					(4,152)	(4,152)	(252)
Ending balance (shares) at Mar. 31, 2021	16,942,552		16,942,552
Ending balance at Mar. 31, 2021	$ 585,946		$ 17	$ 499,671	$ 316,406	$ (246,048)	$ 570,046	$ 15,900