Guarantor and Non-Guarantor Subsidiaries (Details) (USD $)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2012
Condensed consolidating statement of comprehensive income (loss)
Sales	$ 684,029,000	$ 708,544,000	$ 2,183,794,000	$ 2,157,776,000
Cost of products sold	580,956,000	599,985,000	1,844,616,000	1,804,743,000
Selling, administration & engineering expenses	65,421,000	64,403,000	206,432,000	190,856,000
Amortization of intangibles	3,866,000	3,911,000	11,590,000	11,745,000	15,500,000
Restructuring	10,171,000	6,539,000	15,758,000	48,124,000
Operating profit (loss)	23,615,000	33,706,000	105,398,000	102,308,000
Interest expense, net of interest income	(11,325,000)	(9,603,000)	(33,326,000)	(30,158,000)
Equity earnings	2,342,000	843,000	5,891,000	3,480,000
Other income (expense), net	1,118,000	(8,884,000)	(449,000)	6,191,000
Income (loss) before income taxes	15,750,000	16,062,000	77,514,000	81,821,000
Provision (benefit) for income tax expense	5,392,000	7,963,000	(32,772,000)	26,782,000
Income (loss) before equity in income of subsidiaries	10,400,000	8,099,000	110,300,000	55,039,000
Equity in net income of subsidiaries
Consolidated net income	10,358,000	8,099,000	110,286,000	55,039,000
Net loss attributable to noncontrolling interests	1,266,000	7,559,000	2,441,000	24,576,000
Net income attributable to Cooper-Standard Holdings Inc.	11,624,000	15,658,000	112,727,000	79,615,000
Comprehensive income (loss)	18,790,000	(53,137,000)	104,998,000	32,922,000
Add: Comprehensive loss attributable to noncontrolling interests	825,000	9,030,000	2,758,000	26,961,000
Comprehensive income (loss) attributable to Cooper-Standard Holdings Inc.	19,615,000	(44,107,000)	107,756,000	59,883,000
Parent [Member]
Condensed consolidating statement of comprehensive income (loss)
Sales
Cost of products sold
Selling, administration & engineering expenses
Amortization of intangibles
Restructuring
Operating profit (loss)
Interest expense, net of interest income
Equity earnings
Other income (expense), net
Income (loss) before income taxes
Provision (benefit) for income tax expense
Income (loss) before equity in income of subsidiaries
Equity in net income of subsidiaries	11,600,000	15,700,000	112,700,000	79,600,000
Consolidated net income	11,600,000	15,700,000	112,700,000	79,600,000
Net loss attributable to noncontrolling interests
Net income attributable to Cooper-Standard Holdings Inc.	11,600,000	15,700,000	112,700,000	79,600,000
Comprehensive income (loss)	19,600,000	(44,100,000)	107,800,000	59,900,000
Add: Comprehensive loss attributable to noncontrolling interests
Comprehensive income (loss) attributable to Cooper-Standard Holdings Inc.	19,600,000	(44,100,000)	107,800,000	59,900,000
Issuer [Member]
Condensed consolidating statement of comprehensive income (loss)
Sales	135,100,000	123,100,000	429,700,000	373,600,000
Cost of products sold	113,000,000	99,000,000	356,500,000	304,200,000
Selling, administration & engineering expenses	30,800,000	29,000,000	96,200,000	86,900,000
Amortization of intangibles	2,800,000	2,700,000	8,500,000	8,300,000
Restructuring	100,000	100,000	300,000	300,000
Operating profit (loss)	(11,600,000)	(7,700,000)	(31,800,000)	(26,100,000)
Interest expense, net of interest income	(8,300,000)	(9,000,000)	(24,900,000)	(26,600,000)
Equity earnings	1,000,000	200,000	500,000	300,000
Other income (expense), net	8,700,000	12,500,000	26,600,000	38,000,000
Income (loss) before income taxes	(10,200,000)	(4,000,000)	(29,600,000)	(14,400,000)
Provision (benefit) for income tax expense	300,000	(1,700,000)	18,400,000	(2,700,000)
Income (loss) before equity in income of subsidiaries	(10,500,000)	(2,300,000)	(48,000,000)	(11,700,000)
Equity in net income of subsidiaries	22,100,000	18,000,000	160,700,000	91,300,000
Consolidated net income	11,600,000	15,700,000	112,700,000	79,600,000
Net loss attributable to noncontrolling interests
Net income attributable to Cooper-Standard Holdings Inc.	11,600,000	15,700,000	112,700,000	79,600,000
Comprehensive income (loss)	19,600,000	(44,100,000)	107,800,000	59,900,000
Add: Comprehensive loss attributable to noncontrolling interests
Comprehensive income (loss) attributable to Cooper-Standard Holdings Inc.	19,600,000	(44,100,000)	107,800,000	59,900,000
Guarantors [Member]
Condensed consolidating statement of comprehensive income (loss)
Sales	150,700,000	150,600,000	475,500,000	462,300,000
Cost of products sold	129,100,000	124,100,000	401,900,000	381,500,000
Selling, administration & engineering expenses		(100,000)	900,000	(5,200,000)
Amortization of intangibles
Restructuring	200,000	1,700,000	300,000	4,700,000
Operating profit (loss)	21,400,000	24,900,000	72,400,000	81,300,000
Interest expense, net of interest income
Equity earnings	500,000		2,700,000	500,000
Other income (expense), net	(100,000)	200,000	1,000,000	12,800,000
Income (loss) before income taxes	21,800,000	25,100,000	76,100,000	94,600,000
Provision (benefit) for income tax expense	4,600,000	8,900,000	(48,500,000)	15,200,000
Income (loss) before equity in income of subsidiaries	17,200,000	16,200,000	124,600,000	79,400,000
Equity in net income of subsidiaries
Consolidated net income	17,200,000	16,200,000	124,600,000	79,400,000
Net loss attributable to noncontrolling interests
Net income attributable to Cooper-Standard Holdings Inc.	17,200,000	16,200,000	124,600,000	79,400,000
Comprehensive income (loss)	17,200,000	16,200,000	124,600,000	79,400,000
Add: Comprehensive loss attributable to noncontrolling interests
Comprehensive income (loss) attributable to Cooper-Standard Holdings Inc.	17,200,000	16,200,000	124,600,000	79,400,000
Non-Guarantors [Member]
Condensed consolidating statement of comprehensive income (loss)
Sales	441,400,000	471,000,000	1,420,200,000	1,426,700,000
Cost of products sold	382,000,000	413,100,000	1,227,800,000	1,223,900,000
Selling, administration & engineering expenses	34,600,000	35,500,000	109,300,000	109,200,000
Amortization of intangibles	1,100,000	1,200,000	3,100,000	3,400,000
Restructuring	9,900,000	4,700,000	15,200,000	43,100,000
Operating profit (loss)	13,800,000	16,500,000	64,800,000	47,100,000
Interest expense, net of interest income	(3,000,000)	(600,000)	(8,400,000)	(3,600,000)
Equity earnings	900,000	600,000	2,700,000	2,700,000
Other income (expense), net	(7,500,000)	(21,500,000)	(28,100,000)	(44,600,000)
Income (loss) before income taxes	4,200,000	(5,000,000)	31,000,000	1,600,000
Provision (benefit) for income tax expense	500,000	800,000	(2,700,000)	14,300,000
Income (loss) before equity in income of subsidiaries	3,700,000	(5,800,000)	33,700,000	(12,700,000)
Equity in net income of subsidiaries
Consolidated net income	3,700,000	(5,800,000)	33,700,000	(12,700,000)
Net loss attributable to noncontrolling interests	1,200,000	7,600,000	2,400,000	24,600,000
Net income attributable to Cooper-Standard Holdings Inc.	4,900,000	1,800,000	36,100,000	11,900,000
Comprehensive income (loss)	11,500,000	(64,700,000)	29,000,000	(37,200,000)
Add: Comprehensive loss attributable to noncontrolling interests	800,000	9,000,000	2,800,000	27,000,000
Comprehensive income (loss) attributable to Cooper-Standard Holdings Inc.	12,300,000	(55,700,000)	31,800,000	(10,200,000)
Eliminations [Member]
Condensed consolidating statement of comprehensive income (loss)
Sales	(43,200,000)	(36,200,000)	(141,600,000)	(104,800,000)
Cost of products sold	(43,200,000)	(36,200,000)	(141,600,000)	(104,800,000)
Selling, administration & engineering expenses
Amortization of intangibles
Restructuring
Operating profit (loss)
Interest expense, net of interest income
Equity earnings
Other income (expense), net
Income (loss) before income taxes
Provision (benefit) for income tax expense
Income (loss) before equity in income of subsidiaries
Equity in net income of subsidiaries	(33,700,000)	(33,700,000)	(273,400,000)	(170,900,000)
Consolidated net income	(33,700,000)	(33,700,000)	(273,400,000)	(170,900,000)
Net loss attributable to noncontrolling interests
Net income attributable to Cooper-Standard Holdings Inc.	(33,700,000)	(33,700,000)	(273,400,000)	(170,900,000)
Comprehensive income (loss)	(49,100,000)	83,600,000	(264,200,000)	(129,100,000)
Add: Comprehensive loss attributable to noncontrolling interests
Comprehensive income (loss) attributable to Cooper-Standard Holdings Inc.	$ (49,100,000)	$ 83,600,000	$ (264,200,000)	$ (129,100,000)