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Derivative Financial Instruments and Hedging Activities - Purchase and Sales Contracts Outstanding (Details) - Not Designated as Hedging Instrument t in Thousands, T in Thousands, MMBtu in Thousands, Bushels in Thousands, Barrels in Thousands | Aug. 31, 2023 Bushels Barrels T MMBtu t | Aug. 31, 2022 t T MMBtu Barrels Bushels
--- | --- | ---
Grain and oilseed contracts [Member] | Long [Member] |  |
Derivative [Line Items] |  |
Derivative, Nonmonetary Notional Amount | Bushels | 506,654 | 609,300
Grain and oilseed contracts [Member] | Short [Member] |  |
Derivative [Line Items] |  |
Derivative, Nonmonetary Notional Amount | Bushels | 630,803 | 773,239
Energy products [Member] | Long [Member] |  |
Derivative [Line Items] |  |
Derivative, Nonmonetary Notional Amount | Barrels | 11,839 | 10,541
Energy products [Member] | Short [Member] |  |
Derivative [Line Items] |  |
Derivative, Nonmonetary Notional Amount | Barrels | 8,085 | 5,706
Processed grain and oilseed contracts [Member] | Long [Member] |  |
Derivative [Line Items] |  |
Derivative, Nonmonetary Notional Amount | 7,380 | 1,191
Processed grain and oilseed contracts [Member] | Short [Member] |  |
Derivative [Line Items] |  |
Derivative, Nonmonetary Notional Amount | 9,437 | 4,182
Crop nutrient contracts | Long [Member] |  |
Derivative [Line Items] |  |
Derivative, Nonmonetary Notional Amount | 70 | 23
Crop nutrient contracts | Short [Member] |  |
Derivative [Line Items] |  |
Derivative, Nonmonetary Notional Amount | 10 | 22
Ocean freight contracts | Long [Member] |  |
Derivative [Line Items] |  |
Derivative, Nonmonetary Notional Amount | t | 40 | 60
Ocean freight contracts | Short [Member] |  |
Derivative [Line Items] |  |
Derivative, Nonmonetary Notional Amount | t | 0 | 0
Natural gas contracts [Member] | Long [Member] |  |
Derivative [Line Items] |  |
Derivative, Nonmonetary Notional Amount | MMBtu | 460 | 420
Natural gas contracts [Member] | Short [Member] |  |
Derivative [Line Items] |  |
Derivative, Nonmonetary Notional Amount | MMBtu | 0 | 0

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