DERIVATIVES AND RISK MANAGEMENT (Derivative Assets) (Details) - USD ($) $ in Thousands		Feb. 29, 2016	Aug. 31, 2015
Derivatives, Fair Value [Line Items]
Derivative assets (other current assets)	[1]	$ 4,385	$ 5,453
Commodity | Designated
Derivatives, Fair Value [Line Items]
Derivative assets (other current assets)		24	19
Commodity | Not designated
Derivatives, Fair Value [Line Items]
Derivative assets (other current assets)		96	846
Foreign exchange | Designated
Derivatives, Fair Value [Line Items]
Derivative assets (other current assets)		1,273	1,500
Foreign exchange | Not designated
Derivatives, Fair Value [Line Items]
Derivative assets (other current assets)		$ 2,992	$ 3,088

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