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Segment Reporting and Geographical Area Data - Summary of Segment Reporting related to Selling, General and Administrative Expense and Research and Development Expense (Detail) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Segment Reporting Information [Line Items] |  |  |
Total selling, general and administrative expenses and research and development expenses | $ 336.1 | $ 361.8 | $ 429.5
Operating Segments [Member] | Performance Chemicals [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Total selling, general and administrative expenses and research and development expenses | 61.0 | 65.5 | 51.1
Operating Segments [Member] | Fuel Specialties [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Total selling, general and administrative expenses and research and development expenses | 107.4 | 110.3 | 105.4
Operating Segments [Member] | Oilfield Services [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Total selling, general and administrative expenses and research and development expenses | 94.9 | 115.8 | 191.8
Corporate, Non-Segment [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Total selling, general and administrative expenses and research and development expenses | $ 72.8 | $ 70.2 | $ 81.2

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- Definition Selling, general and administrative expense and research and development expense. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Details
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- Details
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- Details
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- Details
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- Details
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