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Acquisitions and Divestitures - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended 24 Months Ended
Feb. 07, 2018
Jan. 31, 2018
Feb. 27, 2015
Sep. 30, 2016
Jun. 30, 2016
Dec. 31, 2015
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2015
Business Acquisition [Line Items]                      
Goodwill, Acquired During Period             $ 414 $ 10,147      
Gain on remeasurement of previously held equity interest             0 0 $ 14,199    
Hard coat plastic exterior trim business [Member]                      
Business Acquisition [Line Items]                      
Proceeds from divestiture of businesses           $ 33,500          
Gain (loss) on disposition of business           $ 8,033          
North America [Member]                      
Business Acquisition [Line Items]                      
Purchase price               32,000      
Huayu-Cooper Standard Sealing Systems Co., Ltd. [Member]                      
Business Acquisition [Line Items]                      
Business Acquisition, Percentage of Voting Interests Acquired     47.50%                
Business Combination, Step Acquisition, Equity Interest in Acquiree, Including Subsequent Acquisition, Percentage     95.00%                
Purchase price               5,478 $ 41,474 $ 17,846 $ 59,320
Intangibles     $ 15,340                
Goodwill, Acquired During Period         $ 2,972            
Business Combination, Step Acquisition, Equity Interest in Acquiree, Percentage     47.50%                
Business Combination, Step Acquisition, Equity Interest in Acquiree, Fair Value     $ 41,378                
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners     5.00%                
Shenya Sealing (Guangzhou) Company Limited [Member]                      
Business Acquisition [Line Items]                      
Intangibles       $ 6,605              
Goodwill, Acquired During Period       9,741              
North America [Member]                      
Business Acquisition [Line Items]                      
Intangibles       19,410              
Goodwill, Acquired During Period       $ 7,175     $ 178 $ 7,175      
Subsequent Event [Member] | Cooper-Standard INOAC Pte. Ltd. [Member]                      
Business Acquisition [Line Items]                      
Business Acquisition, Percentage of Voting Interests Acquired 49.00%                    
Purchase price $ 2,450                    
Subsequent Event [Member] | China [Member]                      
Business Acquisition [Line Items]                      
Purchase price   $ 4,124