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Segment Reporting - Segment Information About Reported Segment Product Revenues by Product Category (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Segment Reporting Information [Line Items] |  |  |  |  |
Product revenues |  | $ 386,870 | $ 371,512 | $ 1,115,814 | $ 1,103,210
Automotive Segments |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Product revenues |  | 374,211 | 358,804 | 1,079,937 | 1,067,444
Automotive Segments | Climate Control Seats |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Product revenues | [1] | 201,275 | 189,898 | 592,448 | 581,713
Automotive Segments | Lumbar and Massage Comfort Solutions |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Product revenues |  | 55,799 | 48,970 | 153,642 | 133,090
Automotive Segments | Climate Control Interiors |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Product revenues | [1] | 52,638 | 49,283 | 147,564 | 140,712
Automotive Segments | Climate and Comfort Electronics |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Product revenues | [1] | 8,599 | 4,883 | 22,220 | 13,266
Automotive Segments | Automotive Climate and Comfort Solutions |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Product revenues |  | 318,311 | 293,034 | 915,874 | 868,781
Automotive Segments | Valve Systems |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Product revenues |  | 24,487 | 26,082 | 72,803 | 81,974
Automotive Segments | Other Automotive |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Product revenues | [1] | 31,413 | 39,688 | 91,260 | 116,689
Industrial Segments | Medical |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Product revenues |  | $ 12,659 | $ 12,708 | $ 35,877 | $ 35,766
[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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