XML 45 R38.htm IDEA: XBRL DOCUMENT

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
	Mar. 31, 2025	Mar. 31, 2024
Segment Reporting Information [Line Items]
Total selling, general and administrative expenses and research and development expenses	$ 82.0	$ 104.5
Operating Segments [Member] \| Performance Chemicals [Member]
Segment Reporting Information [Line Items]
Total selling, general and administrative expenses and research and development expenses	15.5	16.6
Operating Segments [Member] \| Fuel Specialties [Member]
Segment Reporting Information [Line Items]
Total selling, general and administrative expenses and research and development expenses	23.9	27.2
Operating Segments [Member] \| Oilfield Services [Member]
Segment Reporting Information [Line Items]
Total selling, general and administrative expenses and research and development expenses	24.9	40.5
Corporate, Non-Segment [Member]
Segment Reporting Information [Line Items]
Total selling, general and administrative expenses and research and development expenses	$ 17.7	$ 20.2