Related Party Transactions (Details) - Primarily CF Nitrogen, TEMCO, Horizon Milling, Ardent Mills and Ventura Foods - USD ($) $ in Thousands	12 Months Ended
Aug. 31, 2017	Aug. 31, 2016	Aug. 31, 2015
Related Party Transaction [Line Items]
Related party sales	$ 3,183,944	$ 2,728,793	$ 2,310,875
Purchases	2,610,887	1,707,990	$ 1,762,663
Due from related parties	33,119	25,386
Due to related parties	$ 39,232	$ 40,543

For an unclassified balance sheet, amounts due from related parties including affiliates, employees, joint ventures, officers and stockholders, immediate families thereof, and pension funds.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
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-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864

Reference 2: http://www.xbrl.org/2003/role/presentationRef
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