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Segment Reporting - Summary of Segment Reporting related to Cost of Goods Sold (Detail) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024
Segment Reporting Information [Line Items] |  |  |  |
Total cost of goods sold | $ 316.5 | $ 308.1 | $ 632.2 | $ 652.6
Operating Segments [Member] | Performance Chemicals [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total cost of goods sold | 143.3 | 123.9 | 276.4 | 247.0
Operating Segments [Member] | Fuel Specialties [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total cost of goods sold | 102.2 | 109.0 | 211.7 | 225.3
Operating Segments [Member] | Oilfield Services [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total cost of goods sold | $ 71.0 | $ 75.2 | $ 144.1 | $ 180.3

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