Overview (Policies)	9 Months Ended
Sep. 30, 2018
Accounting Policies [Abstract]
Basis of presentation	Basis of Presentation Cooper-Standard Holdings Inc. (together with its consolidated subsidiaries, the “Company” or “Cooper Standard”), through its wholly-owned subsidiary, Cooper-Standard Automotive Inc. (“CSA U.S.”), is a leading manufacturer of sealing, fuel and brake delivery, fluid transfer, and anti-vibration systems. The Company’s products are primarily for use in passenger vehicles and light trucks that are manufactured by global automotive original equipment manufacturers (“OEMs”) and replacement markets. The Company conducts substantially all of its activities through its subsidiaries. Subsequent to the end of the Company's third quarter, on November 2, 2018, the Company entered into a definitive agreement to divest the anti-vibration systems product line. See Note 3. Acquisitions and Divestitures and Note 4. Assets Held for Sale. The accompanying unaudited condensed consolidated financial statements have been prepared pursuant to the rules and regulations of the U.S. Securities and Exchange Commission (the “SEC”) for interim financial information and should be read in conjunction with the consolidated financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2017 (the “2017 Annual Report”), as filed with the SEC. Accordingly, they do not include all of the information and footnotes required by accounting principles generally accepted in the United States (“U.S. GAAP”) for complete financial statements. These financial statements include all adjustments (consisting of normal, recurring adjustments) considered necessary for a fair presentation of the financial position and results of operations of the Company. The operating results for the interim period ended September 30, 2018 are not necessarily indicative of results for the full year. In preparing these financial statements, the Company has evaluated events and transactions for potential recognition or disclosure through the date the financial statements were issued. The Company’s financial statements for the three and nine months ended September 30, 2017 have been recast to reflect the effects of the adoption of Accounting Standards Update (“ASU”) 2017-07, Compensation-Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost, and ASU 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash, both of which were adopted in the first quarter of 2018. The financial statement line items affected due to the adoption of ASU 2017-07 were cost of products sold, selling, administration & engineering expenses and other expense, net. The financial statement line items affected due to the adoption of ASU 2016-18 were cash flows from operating activities and beginning and ending cash, cash equivalents and restricted cash. Amounts included in restricted cash are maintained to meet local regulatory requirements in Europe and Korea in support of employee related programs.

Basis of Presentation

Cooper-Standard Holdings Inc. (together with its consolidated subsidiaries, the “Company” or “Cooper Standard”), through its wholly-owned subsidiary, Cooper-Standard Automotive Inc. (“CSA U.S.”), is a leading manufacturer of sealing, fuel and brake delivery, fluid transfer, and anti-vibration systems. The Company’s products are primarily for use in passenger vehicles and light trucks that are manufactured by global automotive original equipment manufacturers (“OEMs”) and replacement markets. The Company conducts substantially all of its activities through its subsidiaries.

Subsequent to the end of the Company's third quarter, on November 2, 2018, the Company entered into a definitive agreement to divest the anti-vibration systems product line. See Note 3. Acquisitions and Divestitures and Note 4. Assets Held for Sale.

The accompanying unaudited condensed consolidated financial statements have been prepared pursuant to the rules and regulations of the U.S. Securities and Exchange Commission (the “SEC”) for interim financial information and should be read in conjunction with the consolidated financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2017 (the “2017 Annual Report”), as filed with the SEC. Accordingly, they do not include all of the information and footnotes required by accounting principles generally accepted in the United States (“U.S. GAAP”) for complete financial statements. These financial statements include all adjustments (consisting of normal, recurring adjustments) considered necessary for a fair presentation of the financial position and results of operations of the Company. The operating results for the interim period ended September 30, 2018 are not necessarily indicative of results for the full year. In preparing these financial statements, the Company has evaluated events and transactions for potential recognition or disclosure through the date the financial statements were issued.

The Company’s financial statements for the three and nine months ended September 30, 2017 have been recast to reflect the effects of the adoption of Accounting Standards Update (“ASU”) 2017-07, Compensation-Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost, and ASU 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash, both of which were adopted in the first quarter of 2018. The financial statement line items affected due to the adoption of ASU 2017-07 were cost of products sold, selling, administration & engineering expenses and other expense, net. The financial statement line items affected due to the adoption of ASU 2016-18 were cash flows from operating activities and beginning and ending cash, cash equivalents and restricted cash. Amounts included in restricted cash are maintained to meet local regulatory requirements in Europe and Korea in support of employee related programs.