DERIVATIVES AND RISK MANAGEMENT (Derivative Assets) (Details) (USD $) In Thousands, unless otherwise specified	Aug. 31, 2014		Aug. 31, 2013
Derivatives, Fair Value [Line Items]
Derivative assets (other current assets)	$ 2,900	[1]	$ 3,930	[1]
Commodity | Designated
Derivatives, Fair Value [Line Items]
Derivative assets (other current assets)	42		0
Commodity | Not designated
Derivatives, Fair Value [Line Items]
Derivative assets (other current assets)	869		1,066
Foreign exchange | Designated
Derivatives, Fair Value [Line Items]
Derivative assets (other current assets)	136		1,626
Foreign exchange | Not designated
Derivatives, Fair Value [Line Items]
Derivative assets (other current assets)	$ 1,853		$ 1,238

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