Revenues - Disaggregation of Revenues (Details) - USD ($) $ in Thousands	3 Months Ended
	Nov. 30, 2023	Nov. 30, 2022
Disaggregation of Revenue [Line Items]
Revenues	$ 11,390,658	$ 12,765,839
Energy
Disaggregation of Revenue [Line Items]
Revenues	2,717,940	3,119,306
Ag
Disaggregation of Revenue [Line Items]
Revenues	8,652,165	9,633,244
Corporate and Other
Disaggregation of Revenue [Line Items]
Revenues	20,553	13,289
ASC Topic 606
Disaggregation of Revenue [Line Items]
Revenues	4,632,751	5,421,314
ASC Topic 606 | Energy
Disaggregation of Revenue [Line Items]
Revenues	2,399,552	2,802,155
ASC Topic 606 | Ag
Disaggregation of Revenue [Line Items]
Revenues	2,226,423	2,613,460
ASC Topic 606 | Corporate and Other
Disaggregation of Revenue [Line Items]
Revenues	6,776	5,699
ASC Topic 815
Disaggregation of Revenue [Line Items]
Revenues	6,733,020	7,326,504
ASC Topic 815 | Energy
Disaggregation of Revenue [Line Items]
Revenues	318,388	317,151
ASC Topic 815 | Ag
Disaggregation of Revenue [Line Items]
Revenues	6,414,632	7,009,353
ASC Topic 815 | Corporate and Other
Disaggregation of Revenue [Line Items]
Revenues	0	0
Other Guidance
Disaggregation of Revenue [Line Items]
Revenues	24,887	18,021
Other Guidance | Energy
Disaggregation of Revenue [Line Items]
Revenues	0	0
Other Guidance | Ag
Disaggregation of Revenue [Line Items]
Revenues	11,110	10,431
Other Guidance | Corporate and Other
Disaggregation of Revenue [Line Items]
Revenues	$ 13,777	$ 7,590