v3.25.4
Derivative Financial Instruments and Hedging (Gain) Loss recognized in Statement of Operations from derivative instruments (Details) - USD ($)
$ in Millions
 3 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Commodity and energy contracts    
Derivative Instruments, (Gain) Loss    
(Gain) Loss Recognized in Statement of Operations $ 3.2 $ 0.8
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Cost of goods sold Cost of goods sold
Foreign Exchange Contract - Forward Contracts    
Derivative Instruments, (Gain) Loss    
(Gain) Loss Recognized in Statement of Operations $ 1.0 $ (2.3)
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Selling, general and administrative expenses Selling, general and administrative expenses
Derivatives Not Designated as Hedging Instruments | Interest Rate Swaps    
Derivative Instruments, (Gain) Loss    
(Gain) Loss Recognized in Statement of Operations $ (1.9) $ (15.4)