Derivatives And Risk Management (Derivatives Designated As Fair Value Hedging Instruments) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Feb. 28, 2014	Feb. 28, 2013	Feb. 28, 2014	Feb. 28, 2013
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) before income taxes for fair value hedges	$ (813)	$ 549	$ (1,053)	$ 320
Foreign exchange [Member] | Net sales
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) before income taxes for fair value hedges	140	(228)	27	(228)
Foreign exchange [Member] | Cost of goods sold
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) before income taxes for fair value hedges	$ (953)	$ 777	$ (1,080)	$ 548