Consolidated Statements of Operations (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Aug. 31, 2013	Aug. 31, 2012	Aug. 31, 2011
Income Statement [Abstract]
Revenues	$ 44,479,857	$ 40,599,286	$ 36,915,834
Cost of goods sold	42,706,205	38,588,143	35,512,988
Gross profit	1,773,652	2,011,143	1,402,846
Marketing, general and administrative	553,623	498,233	438,498
Operating earnings	1,220,029	1,512,910	964,348
Loss (gain) on investments	(182)	5,465	(126,729)
Interest, net	231,567	193,263	74,835
Equity income from investments	(97,350)	(102,389)	(131,414)
Income before income taxes	1,085,994	1,416,571	1,147,656
Income taxes	89,666	80,852	86,628
Net income	996,328	1,335,719	1,061,028
Net Income (Loss) Attributable to Noncontrolling Interest		75,091	99,673
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest	3,942	75,091	101,458
Net income attributable to CHS Inc.	$ 992,386	$ 1,260,628	$ 961,355