Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Feb. 28, 2022	Feb. 28, 2021	Feb. 28, 2022	Feb. 28, 2021
Net income (loss)	$ 218,896	$ (38,358)	$ 670,839	$ 31,011
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest [Abstract]
Pension and other postretirement benefits	4,581	3,869	8,349	7,514
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax	(553)	(559)	(9,694)	1,110
Foreign currency translation adjustment	5,926	(761)	(4,119)	2,842
Other comprehensive income, net of tax	9,954	2,549	(5,464)	11,466
Comprehensive income (loss)	228,850	(35,809)	665,375	42,477
Less comprehensive income attributable to noncontrolling interests	(104)	(129)	(122)	(431)
Comprehensive Income (Loss) Attributable to CHS	$ 228,954	$ (35,680)	$ 665,497	$ 42,908