Derivatives And Risk Management (Hedged (Underlying) Items Designated As Fair Value Hedging Instruments) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Aug. 31, 2012	Aug. 31, 2011	Aug. 31, 2010
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) before taxes for underlying items of fair value hedges	$ (10,944)	$ (18,439)	$ (28,252)
Net sales [Member] | Foreign exchange [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) before taxes for underlying items of fair value hedges	0	91	39
SG&A expenses [Member] | Foreign exchange [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) before taxes for underlying items of fair value hedges	(383)	14,955	4,147
Interest expense [Member] | Interest rate [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) before taxes for underlying items of fair value hedges	$ (10,561)	$ (33,485)	$ (32,438)