Consolidated Statements of Operations (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Feb. 28, 2013	Feb. 29, 2012	Feb. 28, 2013	Feb. 29, 2012
Income Statement [Abstract]
Revenues	$ 9,882,378	$ 8,843,812	$ 21,592,316	$ 18,577,971
Cost of goods sold	9,411,731	8,612,235	20,576,151	17,706,387
Gross profit	470,647	231,577	1,016,165	871,584
Marketing, general and administrative	134,680	126,556	259,162	239,076
Operating earnings	335,967	105,021	757,003	632,508
Loss (gain) on investments	(45)	484	(45)	446
Interest, net	53,385	34,631	120,595	55,438
Equity income from investments	(16,760)	(19,952)	(44,832)	(44,081)
Income before income taxes	299,387	89,858	681,285	620,705
Income taxes	23,869	10,623	59,886	52,588
Net income	275,518	79,235	621,399	568,117
Net income attributable to noncontrolling interests	432	765	2,606	73,439
Net income attributable to CHS Inc.	$ 275,086	$ 78,470	$ 618,793	$ 494,678