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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, 2022 Bushels Barrels t T MMBtu	Aug. 31, 2021 t T MMBtu Bushels Barrels
Grain and oilseed contracts [Member] | Long [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount | Bushels	609,300	666,726
Grain and oilseed contracts [Member] | Short [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount | Bushels	773,239	851,582
Energy products [Member] | Long [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount | Barrels	10,541	9,881
Energy products [Member] | Short [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount | Barrels	5,706	7,656
Processed grain and oilseed contracts [Member] | Long [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	1,191	559
Processed grain and oilseed contracts [Member] | Short [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	4,182	3,418
Crop nutrient contracts | Long [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	23	66
Crop nutrient contracts | Short [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	22	12
Ocean freight contracts | Long [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount | t	60	210
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	420	0
Natural gas contracts [Member] | Short [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount | MMBtu	0	0

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Nominal number of units used to calculate payment on derivative.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 40
-Section 50
-Paragraph 5
-Subparagraph (f)
-URI https://asc.fasb.org/extlink&oid=126731327&loc=d3e90205-114008

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
-URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5580258-113959

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 18
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=126973232&loc=SL123496189-112644

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 1I
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=123466505&loc=SL123495371-112611

Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (d)
-URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5579245-113959

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