Nature Of Operations And Summary Of Significant Accounting Policies (Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Aug. 31, 2014	Aug. 31, 2013	Aug. 31, 2012
Nature Of Operations And Summary Of Significant Accounting Policies [Abstract]
Capitalized development costs, amortization period	5 years
Capitalized development costs	$ 12.4	$ 7.4
Foreign currency transaction gains (losses)	0.1	0.2	(0.1)
Licensee royalty revenue	13.8	12.9	11.8
Advertising costs	7.5	7.0	5.3
Percent likelihood of being realized upon ultimate settlement	50.00%
Goodwill, Impairment Loss