Concentration Of Risk And Segment Data (Percentage Of Sales To Customers More Than Ten Percent Of Revenues) (Details)	12 Months Ended
	Aug. 31, 2011		Aug. 31, 2010		Aug. 31, 2009
Sales Concentration Floor Percentage	10.00%		10.00%
Cisco Systems, Inc [Member]
Percentage of Net Revenue	13.00%		15.00%		13.00%
Percentage of Accounts Receivable		[1]		[1]
Research In Motion Limited [Member]
Percentage of Net Revenue	15.00%		15.00%		12.00%
Percentage of Accounts Receivable	10.00%			[1]

[1] Amount was less than 10% of total