DERIVATIVES AND RISK MANAGEMENT (Derivatives Not Designated as Hedging Instruments) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Aug. 31, 2014	Aug. 31, 2013	Aug. 31, 2012
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) before taxes for derivatives not designated as hedging instruments	$ (2,236)	$ 7,554	$ 2,888
Commodity | Cost of goods sold
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) before taxes for derivatives not designated as hedging instruments	2,504	2,456	4,496
Foreign exchange | Cost of goods sold
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) before taxes for derivatives not designated as hedging instruments	(1,078)	0	(537)
Foreign exchange | Net sales
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) before taxes for derivatives not designated as hedging instruments	473	0	(199)
Foreign exchange | SG&A expenses
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) before taxes for derivatives not designated as hedging instruments	(4,135)	5,089	(872)
Other | Cost of goods sold
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) before taxes for derivatives not designated as hedging instruments	$ 0	$ 9	$ 0