v3.24.2.u1
Long-Term Debt - Third Incremental Term Loan (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Nov. 18, 2022
Debt Instrument          
Gross Exchanges of Long-term debt $ 0.0 $ 0.0 $ 0.0 $ 99.9  
Gross Repayments of Long-term debt $ 18.0 $ 50.0 $ 1,274.5 201.7  
Third Incremental Term Loan | Term Loan          
Debt Instrument          
Loans Payable to Bank         $ 130.0
Gross Exchanges of Long-term debt       99.9  
Gross Repayments of Long-term debt       $ 30.1