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Derivative Financial Instruments and Hedging Activities - Narrative (Details)
bbl in Millions, $ in Millions
 12 Months Ended
Aug. 31, 2025
USD ($)
bbl
Aug. 31, 2024
USD ($)
bbl
Derivative Instruments, Gain (Loss) [Line Items]    
Derivative Asset, Noncurrent, Excluding Fair Value Hedges $ 2.0 $ 2.9
Derivative Liability, Noncurrent, Excluding Fair Value Hedges $ 1.7 $ 6.0
Cash Flow Hedging [Member]    
Derivative Instruments, Gain (Loss) [Line Items]    
Derivative, Nonmonetary Notional Amount, Volume | bbl 5.1 5.5
Foreign exchange derivatives | Not Designated as Hedging Instrument    
Derivative Instruments, Gain (Loss) [Line Items]    
Derivative, Notional Amount $ 1,700.0 $ 1,500.0