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Goodwill - Additional Information (Detail) - USD ($) $ in Millions | 6 Months Ended
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Jun. 30, 2025 | Jun. 30, 2023
Goodwill [Line Items] |  |
Goodwill, foreign currency translation gain (loss) | $ (15.1) |
Performance Chemicals [Member] |  |
Goodwill [Line Items] |  |
Goodwill, foreign currency translation gain (loss) | $ 14.9 |
Fuel Specialties [Member] |  |
Goodwill [Line Items] |  |
Goodwill, foreign currency translation gain (loss) |  | $ 0.2

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