Segment Reporting - Segment Results (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Segment Reporting Information [Line Items]
Revenues	$ 262,194	$ 250,849	$ 524,903	$ 495,223
Gross profit	38,401	21,879	73,610	47,262
Selling, general & administrative expenses	22,457	15,652	43,022	32,651
Operating income	15,944	6,227	30,588	14,611
Vehicle Solutions
Segment Reporting Information [Line Items]
Revenues	152,730	142,785	313,315	282,941
Electrical Systems
Segment Reporting Information [Line Items]
Revenues	63,625	47,345	118,373	87,222
Aftermarket and Accessories
Segment Reporting Information [Line Items]
Revenues	36,829	32,172	74,458	62,387
Industrial Automation
Segment Reporting Information [Line Items]
Revenues	9,010	28,547	18,757	62,673
Operating Segments | Vehicle Solutions
Segment Reporting Information [Line Items]
Revenues	152,730	142,785	313,315	282,941
Gross profit	20,904	8,912	40,374	21,817
Selling, general & administrative expenses	6,769	7,403	12,847	13,990
Operating income	14,135	1,509	27,527	7,827
Operating Segments | Electrical Systems
Segment Reporting Information [Line Items]
Revenues	63,625	47,345	118,373	87,222
Gross profit	10,345	7,245	18,643	10,647
Selling, general & administrative expenses	2,686	1,303	4,914	2,942
Operating income	7,659	5,942	13,729	7,705
Operating Segments | Aftermarket and Accessories
Segment Reporting Information [Line Items]
Revenues	36,829	32,172	74,458	62,387
Gross profit	7,788	2,867	15,015	6,952
Selling, general & administrative expenses	2,262	1,735	3,913	3,199
Operating income	5,526	1,132	11,102	3,753
Operating Segments | Industrial Automation
Segment Reporting Information [Line Items]
Revenues	9,010	28,547	18,757	62,673
Gross profit	(636)	2,855	(422)	7,846
Selling, general & administrative expenses	1,425	1,547	2,501	2,871
Operating income	(2,061)	1,308	(2,923)	4,975
Corporate/Other
Segment Reporting Information [Line Items]
Revenues	0	0	0	0
Gross profit	0	0	0	0
Selling, general & administrative expenses	9,315	3,664	18,847	9,649
Operating income	$ (9,315)	$ (3,664)	$ (18,847)	$ (9,649)