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Business Acquisitions and Investments (Details)
$ in Thousands
1 Months Ended 12 Months Ended
Jan. 31, 2018
USD ($)
Dec. 31, 2018
USD ($)
Dec. 31, 2017
USD ($)
Mar. 31, 2018
USD ($)
Mar. 31, 2018
CNY (¥)
Nov. 30, 2017
Sep. 30, 2017
USD ($)
Dec. 31, 2016
USD ($)
Apr. 30, 2014
USD ($)
Business Combination, Description [Abstract]                  
Equity in joint ventures   $ 32,469 $ 31,184         $ 19,924  
Foshan GWO YNG SMP Vehicle Climate Control & Cooling Products Co. Ltd. [Member]                  
Business Combination, Description [Abstract]                  
Percentage of equity interest acquired   65.00%   15.00% 15.00%       50.00%
Equity in joint ventures       $ 4,200 ¥ 26,475,583       $ 14,000
Purchase price payment   $ 4,200              
Foshan FGD SMP Automotive Compressor Co., Ltd. [Member]                  
Business Combination, Description [Abstract]                  
Percentage of equity interest acquired           50.00% 50.00%    
Equity in joint ventures             $ 12,500    
Purchase price payment $ 5,700   $ 6,800