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Derivative Financial Instruments and Hedging Activities - Derivatives (Details)
$ in Thousands, bbl in Millions
 3 Months Ended 12 Months Ended
Nov. 30, 2022
USD ($)
bbl
Aug. 31, 2022
USD ($)
bbl
Derivative [Line Items]    
Derivative Liability, Noncurrent $ 2,400 $ 4,000
Derivative Asset, Fair Value, Amount Not Offset Against Collateral 351,667 504,355
Derivative Asset, Fair Value, Gross Amount Not Offset on Balance Sheet 15,164 12,735
Derivative Liability, Fair Value, Amount Not Offset Against Collateral 220,934 368,041
Derivative Liability, Collateral, Right to Reclaim Cash, Offset 1,442 1,424
Derivative Liability, Fair Value, Gross Amount Not Offset on Balance Sheet 17,237 21,475
Derivative Asset, Noncurrent, Excluding Fair Value Hedges 4,700 8,500
Foreign exchange derivatives | Not Designated as Hedging Instrument    
Derivative [Line Items]    
Derivative Asset, Fair Value, Amount Not Offset Against Collateral 44,137 44,022
Derivative Asset, Fair Value, Gross Amount Not Offset on Balance Sheet 7,372 8,901
Derivative Liability, Fair Value, Amount Not Offset Against Collateral 6,565 3,748
Derivative Liability, Collateral, Right to Reclaim Cash, Offset 0 0
Derivative Liability, Fair Value, Gross Amount Not Offset on Balance Sheet 7,372 8,901
Derivative, Notional Amount 1,600,000 1,900,000
Commodity derivatives | Not Designated as Hedging Instrument    
Derivative [Line Items]    
Derivative Asset, Fair Value, Amount Not Offset Against Collateral 307,530 460,333
Derivative Asset, Fair Value, Gross Amount Not Offset on Balance Sheet 7,792 3,834
Derivative Liability, Fair Value, Amount Not Offset Against Collateral 214,369 364,293
Derivative Liability, Collateral, Right to Reclaim Cash, Offset 1,442 1,424
Derivative Liability, Fair Value, Gross Amount Not Offset on Balance Sheet $ 9,865 $ 12,574
Cash Flow Hedging    
Derivative [Line Items]    
Aggregate notional amount of cash flow hedges (in barrels) | bbl 3.1 3.8