v3.25.2
Income Taxes (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Sep. 30, 2024
Income Tax Disclosure [Abstract]          
Effective income tax rate 14.30% 9.40% 15.80% 14.10%  
Income tax liabilities $ 97.0   $ 97.0    
Gross unrecognized tax benefits 30.0   30.0   $ 25.0
Accrued interest and penalties related to unrecognized tax benefits 2.0   2.0   $ 2.0
Reasonably possible amount of reduction in gross unrecognized tax benefits for the next twelve months 25.0   25.0    
Reasonably possible amount of net reduction to income tax provision if unrecognized tax benefits were recognized $ 26.0   $ 26.0