Segment Reporting - Summary of Segment Reporting related to Selling, General and Administrative Expense and Research and Development Expense (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 selling, general and administrative expenses and research and development expenses	$ 88.2	$ 85.6	$ 170.2	$ 190.1
Operating Segments [Member] \| Performance Chemicals [Member]
Segment Reporting Information [Line Items]
Total selling, general and administrative expenses and research and development expenses	16.2	15.0	31.7	31.6
Operating Segments [Member] \| Fuel Specialties [Member]
Segment Reporting Information [Line Items]
Total selling, general and administrative expenses and research and development expenses	27.5	27.2	51.4	54.4
Operating Segments [Member] \| Oilfield Services [Member]
Segment Reporting Information [Line Items]
Total selling, general and administrative expenses and research and development expenses	23.6	25.8	48.5	66.3
Corporate, Non-Segment [Member]
Segment Reporting Information [Line Items]
Total selling, general and administrative expenses and research and development expenses	$ 20.9	$ 17.6	$ 38.6	$ 37.8