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OVERVIEW AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Concentration Risk (Details) - Partner Concentration Risk	12 Months Ended
	Jul. 31, 2018	Jul. 31, 2017	Jul. 31, 2016
Revenue | Partner A
Concentration Risk [Line Items]
Concentration risk percentage	10.00%		14.00%
Revenue | Partner B
Concentration Risk [Line Items]
Concentration risk percentage	20.00%	19.00%	18.00%
Revenue | Partner C
Concentration Risk [Line Items]
Concentration risk percentage	18.00%	16.00%	13.00%
Revenue | Partner D
Concentration Risk [Line Items]
Concentration risk percentage		10.00%	11.00%
Revenue | Partner E
Concentration Risk [Line Items]
Concentration risk percentage			10.00%
Revenue | Partner F
Concentration Risk [Line Items]
Concentration risk percentage	13.00%	14.00%	15.00%
Accounts Receivable | Partner A
Concentration Risk [Line Items]
Concentration risk percentage	16.00%
Accounts Receivable | Partner B
Concentration Risk [Line Items]
Concentration risk percentage	13.00%	12.00%
Accounts Receivable | Partner C
Concentration Risk [Line Items]
Concentration risk percentage	15.00%	14.00%
Accounts Receivable | Partner D
Concentration Risk [Line Items]
Concentration risk percentage		20.00%
Accounts Receivable | Partner F
Concentration Risk [Line Items]
Concentration risk percentage	12.00%	18.00%

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