Derivative Financial Instruments and Hedging (Details) - USD ($) $ in Millions	Dec. 31, 2024	Sep. 30, 2024
Commodity and energy contracts \| Derivatives Not Designated as Hedging Instruments
Derivatives, Fair Value
Notional Amount of Derivative	$ 116.9	$ 111.8
Foreign Exchange Contract - Forward Contracts \| Derivatives Not Designated as Hedging Instruments
Derivatives, Fair Value
Notional Amount of Derivative	31.1	40.5
Interest Rate Swap \| Derivatives Not Designated as Hedging Instruments
Derivatives, Fair Value
Notional Amount of Derivative	300.0	300.0
Other Current Assets \| Commodity and energy contracts
Derivatives, Fair Value
Derivative Asset, Fair Value, Gross Asset	5.1	4.2
Other Current Assets \| Foreign Exchange Contract - Forward Contracts
Derivatives, Fair Value
Derivative Asset, Fair Value, Gross Asset	1.1	0.1
Other Current Assets \| Interest Rate Swap
Derivatives, Fair Value
Derivative Asset, Fair Value, Gross Asset	1.3	1.0
Other Assets \| Interest Rate Swap
Derivatives, Fair Value
Derivative Asset, Fair Value, Gross Asset	6.8	0.0
Assets, Total
Derivatives, Fair Value
Derivative Asset, Fair Value, Gross Asset	14.3	5.3
Other Current Liabilities \| Commodity and energy contracts
Derivatives, Fair Value
Derivative Liability, Fair Value, Gross Liability	2.8	6.5
Other Current Liabilities \| Foreign Exchange Contract - Forward Contracts
Derivatives, Fair Value
Derivative Liability, Fair Value, Gross Liability	0.0	0.9
Other Current Liabilities \| Interest Rate Swap
Derivatives, Fair Value
Derivative Liability, Fair Value, Gross Liability	0.0	0.4
Other Liabilities \| Interest Rate Swap
Derivatives, Fair Value
Derivative Liability, Fair Value, Gross Liability	0.0	7.0
Liabilities, Total
Derivatives, Fair Value
Derivative Liability, Fair Value, Gross Liability	$ 2.8	$ 14.8