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Segment Reporting - Segment Information About Reported Segment Product Revenues by Product Category (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Segment Reporting Information [Line Items]
Product revenues	$ 267,657	$ 288,535
Automotive Segments
Segment Reporting Information [Line Items]
Product revenues	257,864	279,370
Automotive Segments | Climate Control Seat
Segment Reporting Information [Line Items]
Product revenues	102,734	109,173
Automotive Segments | Seat Heaters
Segment Reporting Information [Line Items]
Product revenues	68,896	76,721
Automotive Segments | Steering Wheel Heaters
Segment Reporting Information [Line Items]
Product revenues	28,736	28,864
Automotive Segments | Automotive Cables
Segment Reporting Information [Line Items]
Product revenues	22,045	24,281
Automotive Segments | Battery Performance Solutions
Segment Reporting Information [Line Items]
Product revenues	17,613	17,760
Automotive Segments | Electronics
Segment Reporting Information [Line Items]
Product revenues	10,828	15,105
Automotive Segments | Other Automotive
Segment Reporting Information [Line Items]
Product revenues	7,012	7,466
Industrial Segments | Medical Segments
Segment Reporting Information [Line Items]
Product revenues	$ 9,793	$ 9,165

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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