Revenues - Disaggregation of Revenues (Details) - USD ($) $ in Thousands	3 Months Ended
	Nov. 30, 2022	Nov. 30, 2021
Disaggregation of Revenue [Line Items]
Revenues	$ 12,765,839	$ 10,880,757
Energy
Disaggregation of Revenue [Line Items]
Revenues	3,119,306	2,303,987
Ag
Disaggregation of Revenue [Line Items]
Revenues	9,633,244	8,569,259
Corporate and Other
Disaggregation of Revenue [Line Items]
Revenues	13,289	7,511
ASC Topic 606
Disaggregation of Revenue [Line Items]
Revenues	5,421,314	4,582,823
ASC Topic 606 | Energy
Disaggregation of Revenue [Line Items]
Revenues	2,802,155	2,047,277
ASC Topic 606 | Ag
Disaggregation of Revenue [Line Items]
Revenues	2,613,460	2,531,956
ASC Topic 606 | Corporate and Other
Disaggregation of Revenue [Line Items]
Revenues	5,699	3,590
ASC Topic 815
Disaggregation of Revenue [Line Items]
Revenues	7,326,504	6,285,970
ASC Topic 815 | Energy
Disaggregation of Revenue [Line Items]
Revenues	317,151	256,710
ASC Topic 815 | Ag
Disaggregation of Revenue [Line Items]
Revenues	7,009,353	6,029,260
ASC Topic 815 | Corporate and Other
Disaggregation of Revenue [Line Items]
Revenues	0	0
Other Guidance
Disaggregation of Revenue [Line Items]
Revenues	18,021	11,964
Other Guidance | Energy
Disaggregation of Revenue [Line Items]
Revenues	0	0
Other Guidance | Ag
Disaggregation of Revenue [Line Items]
Revenues	10,431	8,043
Other Guidance | Corporate and Other
Disaggregation of Revenue [Line Items]
Revenues	$ 7,590	$ 3,921