Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Aug. 31, 2022	Aug. 31, 2021	Aug. 31, 2020
Statement of Comprehensive Income [Abstract]
Net income	$ 1,677,901	$ 553,569	$ 423,609
Other comprehensive (loss) income, net of tax:
Pension and other postretirement benefits	(27,255)	18,295	12,798
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax	4,019	(6,062)	(4,411)
Foreign currency translation adjustment	(15,708)	5,300	(15,378)
Other comprehensive loss, net of tax	(38,944)	17,533	(6,991)
Comprehensive income	1,638,957	571,102	416,618
Comprehensive (loss) income attributable to noncontrolling interests	(861)	(383)	1,170
Comprehensive income attributable to CHS Inc.	$ 1,639,818	$ 571,485	$ 415,448