Segment Reporting - Segment Information About Reported Segment Product Revenues by Product Category (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Segment Reporting Information [Line Items]
Product revenues	$ 416,166	$ 375,090	$ 809,872	$ 728,944
Automotive Segments
Segment Reporting Information [Line Items]
Product revenues	404,815	363,852	786,981	705,726
Automotive Segments \| Climate Control Seats
Segment Reporting Information [Line Items]
Product revenues	217,465	200,020	424,053	391,173
Automotive Segments \| Lumbar and Massage Comfort Solutions
Segment Reporting Information [Line Items]
Product revenues	72,588	52,530	134,849	97,843
Automotive Segments \| Climate Control Interiors
Segment Reporting Information [Line Items]
Product revenues	52,538	49,585	103,302	94,926
Automotive Segments \| Climate and Comfort Electronics
Segment Reporting Information [Line Items]
Product revenues	8,746	5,906	17,906	13,621
Automotive Segments \| Automotive Climate and Comfort Solutions
Segment Reporting Information [Line Items]
Product revenues	351,337	308,041	680,110	597,563
Automotive Segments \| Valve Systems
Segment Reporting Information [Line Items]
Product revenues	25,102	25,143	51,675	48,316
Automotive Segments \| Other Automotive
Segment Reporting Information [Line Items]
Product revenues	28,376	30,668	55,196	59,847
Industrial Segments \| Medical
Segment Reporting Information [Line Items]
Product revenues	$ 11,351	$ 11,238	$ 22,891	$ 23,218