Concentration of Risk and Segment Data (Details)	3 Months Ended		9 Months Ended		12 Months Ended
	May. 31, 2015 Country	May. 31, 2014	May. 31, 2015 Country Customer Segment	May. 31, 2014	Aug. 31, 2014 Segment
Entity Wide Revenue Major Customer [Line Items]
Number of operating segments | Segment			2		3
Number of operating countries | Country	25		25
Geographic Concentration Risk [Member] | Net revenue [Member] | Foreign [Member]
Entity Wide Revenue Major Customer [Line Items]
Concentration Risk, Percentage	86.60%	83.40%	87.10%	84.10%
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			79
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%