v3.24.2.u1
Derivative Financial Instruments and Hedging (Details) - USD ($)
$ in Millions
9 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Sep. 30, 2023
Derivatives, Fair Value      
Financing portion of cash paid for rate-lock interest rate swaps $ 0.0 $ 43.5  
Commodity and energy contracts | Derivatives Not Designated as Hedging Instruments      
Derivatives, Fair Value      
Notional Amount of Derivative 200.8   $ 263.9
Foreign Exchange Contract - Forward Contracts | Derivatives Not Designated as Hedging Instruments      
Derivatives, Fair Value      
Notional Amount of Derivative 3.7   3.0
Interest Rate Swap | Derivatives Not Designated as Hedging Instruments      
Derivatives, Fair Value      
Derivative, Notional amount of terminated contracts 400.0 200.0  
Derivative, Cash Received for Termination 5.2 6.7  
Notional Amount of Derivative 300.0   700.0
Interest rate swap, rate lock swaps | Derivatives Not Designated as Hedging Instruments      
Derivatives, Fair Value      
Derivative, Cash Settlements paid, net   55.1  
Derivative, Notional amount of terminated contracts   849.3  
Interest rate swap, options | Derivatives Not Designated as Hedging Instruments      
Derivatives, Fair Value      
Derivative, Cash Settlements paid, net   2.1  
Derivative, Notional amount of terminated contracts   $ 332.6  
Other Current Assets | Commodity and energy contracts      
Derivatives, Fair Value      
Derivative Asset, Fair Value, Gross Asset 2.9   3.7
Other Current Assets | Foreign Exchange Contract - Forward Contracts      
Derivatives, Fair Value      
Derivative Asset, Fair Value, Gross Asset 0.1   0.0
Other Current Assets | Interest Rate Swap      
Derivatives, Fair Value      
Derivative Asset, Fair Value, Gross Asset 3.6   10.6
Other Assets | Commodity and energy contracts      
Derivatives, Fair Value      
Derivative Asset, Fair Value, Gross Asset 2.1   0.0
Other Assets | Interest Rate Swap      
Derivatives, Fair Value      
Derivative Asset, Fair Value, Gross Asset 2.4   11.3
Assets, Total      
Derivatives, Fair Value      
Derivative Asset, Fair Value, Gross Asset 11.1   25.6
Other Current Liabilities | Commodity and energy contracts      
Derivatives, Fair Value      
Derivative Liability, Fair Value, Gross Liability 9.7   16.1
Liabilities, Total      
Derivatives, Fair Value      
Derivative Liability, Fair Value, Gross Liability $ 9.7   $ 16.1