Net Sales (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2022	Mar. 31, 2021
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	$ 322,831	$ 276,553
Aftermarket [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	239,657	222,380
OE/OES [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	75,051	47,425
Export [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	8,123	6,748
Ignition, Emission Control, Fuel and Safety Related System Products [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	202,674	175,335
Wire and Cable [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	38,820	38,359
Compressors [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	43,226	33,392
Other Climate Control Parts [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	38,111	29,467
United States [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	277,272	239,837
Canada [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	15,709	13,962
Europe [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	11,537	5,205
Asia [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	8,503	9,711
Mexico [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	7,791	6,212
Other Foreign [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	2,019	1,626
Engine Management [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	239,257	212,018
Engine Management [Member] | Aftermarket [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	165,125	164,633
Engine Management [Member] | OE/OES [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	66,557	41,045
Engine Management [Member] | Export [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	7,575	6,340
Engine Management [Member] | Ignition, Emission Control, Fuel and Safety Related System Products [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	200,354	173,666
Engine Management [Member] | Wire and Cable [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	38,903	38,352
Engine Management [Member] | Compressors [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	0	0
Engine Management [Member] | Other Climate Control Parts [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	0	0
Engine Management [Member] | United States [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	201,823	181,101
Engine Management [Member] | Canada [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	8,140	8,574
Engine Management [Member] | Europe [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	11,492	5,149
Engine Management [Member] | Asia [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	8,341	9,635
Engine Management [Member] | Mexico [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	7,707	6,147
Engine Management [Member] | Other Foreign [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	1,754	1,412
Temperature Control [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	81,321	62,473
Temperature Control [Member] | Aftermarket [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	72,279	55,685
Temperature Control [Member] | OE/OES [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	8,494	6,380
Temperature Control [Member] | Export [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	548	408
Temperature Control [Member] | Ignition, Emission Control, Fuel and Safety Related System Products [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	0	0
Temperature Control [Member] | Wire and Cable [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	0	0
Temperature Control [Member] | Compressors [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	43,277	33,374
Temperature Control [Member] | Other Climate Control Parts [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	38,044	29,099
Temperature Control [Member] | United States [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	75,449	58,736
Temperature Control [Member] | Canada [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	5,316	3,326
Temperature Control [Member] | Europe [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	45	56
Temperature Control [Member] | Asia [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	162	76
Temperature Control [Member] | Mexico [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	84	65
Temperature Control [Member] | Other Foreign [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1]	265	214
Other [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1],[2]	2,253	2,062
Other [Member] | Aftermarket [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1],[2]	2,253	2,062
Other [Member] | OE/OES [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1],[2]	0	0
Other [Member] | Export [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1],[2]	0	0
Other [Member] | Ignition, Emission Control, Fuel and Safety Related System Products [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1],[2]	2,320	1,669
Other [Member] | Wire and Cable [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1],[2]	(83)	7
Other [Member] | Compressors [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1],[2]	(51)	18
Other [Member] | Other Climate Control Parts [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1],[2]	67	368
Other [Member] | United States [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1],[2]	0	0
Other [Member] | Canada [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1],[2]	2,253	2,062
Other [Member] | Europe [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1],[2]	0	0
Other [Member] | Asia [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1],[2]	0	0
Other [Member] | Mexico [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1],[2]	0	0
Other [Member] | Other Foreign [Member]
Disaggregation of Revenue [Abstract]
Disaggregation of net sales	[1],[2]	$ 0	$ 0

[1] Segment net sales include intersegment sales in our Engine Management and Temperature Control segments.

[2] Other consists of the elimination of intersegment sales from our Engine Management and Temperature Control segments as well as sales from our Canadian business unit that does not meet the criteria of a reportable operating segment.  Intersegment wire and cable and compressor sales for the three months ended March 31, 2022 exceeded third party sales from our Canadian business unit.