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