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Acquisitions - Additional Information (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Feb. 27, 2015
Sep. 30, 2016
Jun. 30, 2016
Mar. 31, 2016
Sep. 30, 2015
Mar. 31, 2015
Sep. 30, 2016
Sep. 30, 2015
Business Acquisition [Line Items]                
Goodwill, Other Increase (Decrease)             $ 10,869  
Acquisition of businesses, net of cash acquired             37,478 $ 34,396
Payments to Acquire Additional Interest in Subsidiaries             0 1,262
Gain on remeasurement of previously held equity interest   $ 0     $ 0   0 $ 14,199
Goodwill, Acquired During Period             10,147  
Series of Individually Immaterial Business Acquisitions [Member]                
Business Acquisition [Line Items]                
Acquisition of businesses, net of cash acquired     $ 2,458 $ 3,020        
Total Payments to Acquire Businesses, Gross             5,478  
Goodwill, Acquired During Period     $ 2,972          
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%              
Business Combination, Consideration Transferred           $ 59,320    
Business Combination, Step Acquisition, Equity Interest in Acquiree, Percentage 47.50%              
Business Combination, Step Acquisition, Equity Interest in Acquiree, Fair Value $ 41,378              
North America [Member]                
Business Acquisition [Line Items]                
Goodwill, Other Increase (Decrease)             0  
Acquisition of businesses, net of cash acquired             32,000  
Goodwill, Acquired During Period             $ 7,175  
Guangzhou [Member]                
Business Acquisition [Line Items]                
Equity Method Investment, Ownership Percentage   51.00%         51.00%