Derivative Financial Instruments and Hedging Activities - Purchase and Sale Contracts (Details) - Not Designated as Hedging Instrument t in Thousands, T in Thousands, MMBtu in Thousands, Bushels in Thousands, Barrels in Thousands	Nov. 30, 2023 T Bushels MMBtu t Barrels	Aug. 31, 2023 Bushels MMBtu Barrels T t
Grain and oilseed (bushels) | Long [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount | Bushels	502,650	506,654
Grain and oilseed (bushels) | Short [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount | Bushels	719,364	630,803
Energy products (barrels) | Long [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount | Barrels	7,166	11,839
Energy products (barrels) | Short [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount | Barrels	6,097	8,085
Processed grain and oilseed (tons) | Long [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	6,594	7,380
Processed grain and oilseed (tons) | Short [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	12,252	9,437
Crop nutrients (tons) | Long [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	61	70
Crop nutrients (tons) | Short [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	0	10
Ocean Freight Contracts [Member] | Long [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount | t	10	40
Ocean Freight Contracts [Member] | Short [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount | t	0	0
Natural gas (metric million Btu) | Long [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount | MMBtu	180	460
Natural gas (metric million Btu) | Short [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount | MMBtu	0	0