v3.25.2
Supplemental Financial Information - Disaggregation of Sales by Timing of Revenue Recognized and Revenue by Category (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Disaggregation of Revenue [Line Items]        
Net revenues $ 439.0 $ 421.4 $ 1,256.5 $ 1,183.5
Oil changes and related fees        
Disaggregation of Revenue [Line Items]        
Net revenues 319.3 307.9 912.0 868.6
Non-oil changes and related fees        
Disaggregation of Revenue [Line Items]        
Net revenues 93.9 93.6 275.2 258.6
Franchise fees and other        
Disaggregation of Revenue [Line Items]        
Net revenues 25.8 19.9 69.3 56.3
Net revenues transferred at a point in time        
Disaggregation of Revenue [Line Items]        
Net revenues 416.1 401.7 1,191.9 1,127.7
Franchised revenues transferred over time        
Disaggregation of Revenue [Line Items]        
Net revenues $ 22.9 $ 19.7 $ 64.6 $ 55.8