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Segment Reporting - Segment Information About Reported Segment Product Revenues by Product Category (Detail) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Segment Reporting Information [Line Items] |  |  |  |
Product revenues |  | $ 1,469,076 | $ 1,204,656 | $ 1,046,150
Automotive Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Product revenues |  | 1,422,952 | 1,161,616 | 1,004,633
Automotive Segments | Climate Control Seat |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Product revenues |  | 482,665 | 426,046 | 393,816
Automotive Segments | Seat Heaters |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Product revenues |  | 308,588 | 283,970 | 270,054
Automotive Segments | Steering Wheel Heaters |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Product revenues |  | 153,943 | 120,949 | 102,496
Automotive Segments | Lumbar and Massage Comfort Solutions |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Product revenues | [1] | 144,923 | 56,980 |
Automotive Segments | Valve Systems |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Product revenues | [1] | 106,262 | 41,980 |
Automotive Segments | Automotive Cables |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Product revenues |  | 79,993 | 76,962 | 84,114
Automotive Segments | Battery Performance Solutions |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Product revenues |  | 75,484 | 71,907 | 69,594
Automotive Segments | Electronics |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Product revenues |  | 40,387 | 44,106 | 51,648
Automotive Segments | Other Automotive |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Product revenues |  | 30,707 | 38,716 | 32,911
Industrial Segments | Medical |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Product revenues | [1] | $ 46,124 | $ 43,040 | $ 41,517
[1] | Includes product revenues from acquisitions since their respective acquisition dates (see Note 4).

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