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Investments in Unconsolidated Affiliates (Details) - USD ($) $ in Thousands | 1 Months Ended | 3 Months Ended | 12 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Jan. 31, 2018 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017 | Aug. 31, 2019 | Mar. 31, 2018 | Nov. 30, 2017 | Apr. 30, 2014 | Jan. 31, 2013
Investments in and Advances to Affiliates, Balance [Abstract] |  |  |  |  |  |  |  |  |  |  |
Investments in unconsolidated affiliates |  | $ 32,469 |  | $ 38,858 | $ 32,469 |  |  |  |  |  |
Foshan GWOYNG SMP Vehicle Climate Control & Cooling Products Co. Ltd. [Member] |  |  |  |  |  |  |  |  |  |  |
Investments in and Advances to Affiliates, Balance [Abstract] |  |  |  |  |  |  |  |  |  |  |
Investments in unconsolidated affiliates |  | 17,764 |  | $ 18,099 | 17,764 |  |  | $ 4,200 |  | $ 14,000 |
Percentage of equity interest acquired |  |  |  | 65.00% |  |  |  | 15.00% |  | 50.00% |
Purchase price payment |  |  |  |  | 4,200 |  |  |  |  |  |
Purchases from equity method investment |  |  |  | $ 12,700 | 14,900 |  |  |  |  |  |
Foshan FGD SMP Automotive Compressor Co. Ltd [Member] |  |  |  |  |  |  |  |  |  |  |
Investments in and Advances to Affiliates, Balance [Abstract] |  |  |  |  |  |  |  |  |  |  |
Investments in unconsolidated affiliates |  | 12,547 |  | 13,633 | 12,547 |  |  |  | $ 12,500 |  |
Percentage of equity interest acquired |  |  |  |  |  |  |  |  | 50.00% |  |
Purchase price payment | $ 5,700 |  |  |  |  | $ 6,800 |  |  |  |  |
Purchases from equity method investment |  |  |  | 12,800 | 5,200 |  |  |  |  |  |
Jiangsu Che Yijia New Energy Technology Co., Ltd. [Member] |  |  |  |  |  |  |  |  |  |  |
Investments in and Advances to Affiliates, Balance [Abstract] |  |  |  |  |  |  |  |  |  |  |
Investments in unconsolidated affiliates |  | 0 |  | 4,883 | 0 |  | $ 5,100 |  |  |  |
Percentage of equity interest acquired |  |  |  |  |  |  | 29.00% |  |  |  |
Orange Electronic Co., Ltd [Member] |  |  |  |  |  |  |  |  |  |  |
Investments in and Advances to Affiliates, Balance [Abstract] |  |  |  |  |  |  |  |  |  |  |
Investments in unconsolidated affiliates |  | 2,158 |  | $ 2,243 | 2,158 |  |  |  |  |  | $ 6,300
Percentage of equity interest acquired |  |  |  | 19.40% |  |  |  |  |  |  | 25.00%
Purchases from equity method investment |  |  |  | $ 3,500 | 4,900 |  |  |  |  |  |
Impairment charge |  | $ 1,700 | $ 1,800 |  | $ 1,700 | $ 1,800 |  |  |  |  |

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