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Commitments And Contingencies (Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Aug. 31, 2013	Aug. 31, 2012	Aug. 31, 2011
Commitments And Contingencies [Abstract]
Outsourcing contract expense	$ 5.0	$ 5.0	$ 6.6
Freight charges	2.2	1.8	1.6
Purchase commitments	$ 4.3

The floor amount as of the balance sheet date that the entity must expend to satisfy the terms of disclosed arrangements (excluding long-term commitments) in which the entity has agreed to expend funds to procure goods or services from one or more suppliers, other than under a long-term purchase commitment or an unconditional purchase obligation.

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