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

The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.