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Goodwill and Other Intangible Assets, Goodwill (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022
Goodwill by operating segment [Abstract] |  |
Goodwill impairment charge | $ 0 |
Goodwill gross, beginning balance | 170,575 | $ 170,140
Goodwill accumulated impairment losses, Beginning balance | (38,488) | (38,488)
Goodwill net, beginning balance | 132,087 | 131,652
Goodwill foreign currency exchange rate change | 434 | (331)
Goodwill gross, ending balance | 173,217 | 170,575
Goodwill accumulated impairment losses, Ending balance | (38,488) | (38,488)
Goodwill net, ending balance | 134,729 | 132,087
Kade Trading GmbH [Member] |  |
Goodwill by operating segment [Abstract] |  |
Goodwill acquisition |  | 766
Gwo Yng [Member] |  |
Goodwill by operating segment [Abstract] |  |
Goodwill acquisition | 2,208 |
Vehicle Control [Member] |  |
Goodwill by operating segment [Abstract] |  |
Goodwill gross, beginning balance | 129,008 | 129,318
Goodwill accumulated impairment losses, Beginning balance | (38,488) | (38,488)
Goodwill net, beginning balance | 90,520 | 90,830
Goodwill foreign currency exchange rate change | 286 | (310)
Goodwill gross, ending balance | 129,294 | 129,008
Goodwill accumulated impairment losses, Ending balance | (38,488) | (38,488)
Goodwill net, ending balance | 90,806 | 90,520
Vehicle Control [Member] | Kade Trading GmbH [Member] |  |
Goodwill by operating segment [Abstract] |  |
Goodwill acquisition |  | 0
Vehicle Control [Member] | Gwo Yng [Member] |  |
Goodwill by operating segment [Abstract] |  |
Goodwill acquisition | 0 |
Temperature Control [Member] |  |
Goodwill by operating segment [Abstract] |  |
Goodwill gross, beginning balance | 11,474 | 10,839
Goodwill accumulated impairment losses, Beginning balance | 0 | 0
Goodwill net, beginning balance | 11,474 | 10,839
Goodwill foreign currency exchange rate change | 42 | 53
Goodwill gross, ending balance | 12,730 | 11,474
Goodwill accumulated impairment losses, Ending balance | 0 | 0
Goodwill net, ending balance | 12,730 | 11,474
Temperature Control [Member] | Kade Trading GmbH [Member] |  |
Goodwill by operating segment [Abstract] |  |
Goodwill acquisition |  | 582
Temperature Control [Member] | Gwo Yng [Member] |  |
Goodwill by operating segment [Abstract] |  |
Goodwill acquisition | 1,214 |
Engineered Solutions [Member] |  |
Goodwill by operating segment [Abstract] |  |
Goodwill gross, beginning balance | 30,093 | 29,983
Goodwill accumulated impairment losses, Beginning balance | 0 | 0
Goodwill net, beginning balance | 30,093 | 29,983
Goodwill foreign currency exchange rate change | 106 | (74)
Goodwill gross, ending balance | 31,193 | 30,093
Goodwill accumulated impairment losses, Ending balance | 0 | 0
Goodwill net, ending balance | 31,193 | 30,093
Engineered Solutions [Member] | Kade Trading GmbH [Member] |  |
Goodwill by operating segment [Abstract] |  |
Goodwill acquisition |  | $ 184
Engineered Solutions [Member] | Gwo Yng [Member] |  |
Goodwill by operating segment [Abstract] |  |
Goodwill acquisition | $ 994 |

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