v3.26.1
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, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Segment Reporting [Line Items]        
Total selling, general and administrative expenses and research and development expenses $ 98.5 $ 88.2 $ 190.2 $ 170.2
Operating Segments [Member] | Performance Chemicals [Member]        
Segment Reporting [Line Items]        
Total selling, general and administrative expenses and research and development expenses 16.6 16.2 34.3 31.7
Operating Segments [Member] | Fuel Specialties [Member]        
Segment Reporting [Line Items]        
Total selling, general and administrative expenses and research and development expenses 31.7 27.5 58.2 51.4
Operating Segments [Member] | Oilfield Services [Member]        
Segment Reporting [Line Items]        
Total selling, general and administrative expenses and research and development expenses 28.6 23.6 53.8 48.5
Corporate, Non-Segment [Member]        
Segment Reporting [Line Items]        
Total selling, general and administrative expenses and research and development expenses $ 21.6 $ 20.9 $ 43.9 $ 38.6