DERIVATIVES AND RISK MANAGEMENT (Derivative Assets) (Details) - USD ($) $ in Thousands		Aug. 31, 2015	Aug. 31, 2014
Derivatives, Fair Value [Line Items]
Derivative assets (other current assets)	[1]	$ 5,453	$ 2,900
Commodity | Designated
Derivatives, Fair Value [Line Items]
Derivative assets (other current assets)		19	42
Commodity | Not designated
Derivatives, Fair Value [Line Items]
Derivative assets (other current assets)		846	869
Foreign exchange | Designated
Derivatives, Fair Value [Line Items]
Derivative assets (other current assets)		1,500	136
Foreign exchange | Not designated
Derivatives, Fair Value [Line Items]
Derivative assets (other current assets)		$ 3,088	$ 1,853

[1] * Derivative assets and liabilities do not include the hedged items designated as fair value hedges.