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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, 2025	Mar. 31, 2024
Segment Reporting Information [Line Items]
Product revenues		$ 353,854	$ 356,015
Automotive Segments
Segment Reporting Information [Line Items]
Product revenues		341,874	344,638
Automotive Segments | Climate Control Seats
Segment Reporting Information [Line Items]
Product revenues	[1]	191,153	192,049
Automotive Segments | Climate Control Interiors
Segment Reporting Information [Line Items]
Product revenues	[1]	45,341	44,398
Automotive Segments | Lumbar and Massage Comfort Solutions
Segment Reporting Information [Line Items]
Product revenues		45,313	38,251
Automotive Segments | Climate and Comfort Electronics
Segment Reporting Information [Line Items]
Product revenues	[1]	7,715	4,226
Automotive Segments | Automotive Climate and Comfort Solutions
Segment Reporting Information [Line Items]
Product revenues		289,522	278,924
Automotive Segments | Valve Systems
Segment Reporting Information [Line Items]
Product revenues		23,173	26,625
Automotive Segments | Other Automotive
Segment Reporting Information [Line Items]
Product revenues	[1]	29,179	39,089
Industrial Segments | Medical
Segment Reporting Information [Line Items]
Product revenues		$ 11,980	$ 11,377
[1] Product categories have been modified, and prior-period amounts have been recast to conform with the current period presentation. Climate Control Seats (CCS) includes CCS Heat (previously Seat Heaters), CCS Vent/CCS Active Cool (previously CCS) and CCS Neck Conditioners (previously included in Other Automotive). Climate Control Interiors (CCI) includes CCI Steering Wheel Heat and CCI Interior Heat (previously included in Other Automotive). Other Automotive includes Automotive Cables, Battery Performance Solutions, non-automotive electronics and contract manufacturing electronics (previously classified as Electronics).

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