Concentration of Risk and Segment Data (Details 1)	3 Months Ended
	Nov. 30, 2016 Country Customer Segment	Nov. 30, 2015
Entity Wide Revenue Major Customer [Line Items]
Number of operating segments | Segment	2
Number of operating countries | Country	28
Geographic Concentration Risk [Member] | Net revenue [Member] | Foreign [Member]
Entity Wide Revenue Major Customer [Line Items]
Concentration Risk, Percentage	92.30%	92.10%
Customer Concentration Risk [Member] | Net revenue [Member] | Group Of Customers That Account For 90 Percent Of Total Net Revenue [Member]
Entity Wide Revenue Major Customer [Line Items]
Top customers that comprise revenue	70
Concentration Risk, Percentage	90.00%
Customer Concentration Risk [Member] | Net revenue [Member] | Five Largest Customers That Account For A Percentage Of Net Revenue [Member]
Entity Wide Revenue Major Customer [Line Items]
Top customers that comprise revenue	5
Concentration Risk, Percentage	51.00%