BUSINESS COMBINATIONS - PernixData Acquisition (Details) - USD ($) $ in Thousands		12 Months Ended
	Sep. 06, 2016	Jul. 31, 2017	Jul. 31, 2016	Jul. 31, 2015
Business Acquisition [Line Items]
Contingent liability adjustment		$ (1,924)	$ 0	$ 0
Purchase Price Allocation:
Goodwill		16,672	$ 0
PernixData Acquisition
Business Acquisition [Line Items]
Consideration transferred	$ 23,007
Business acquisition equity issued (in shares)	1,711,019
Payment term (in years)	3 years
Contingent consideration maximum	$ 19,000
Contingent liability	2,400
Contingent liability adjustment	1,800
Acquisition related costs	700
Purchase Price Allocation:
Cash and cash equivalents	1,051
Accounts receivable	718
Goodwill	11,853
Finite-lived intangible assets, gross		$ 24,270
Other assets	761
Deferred revenue	(6,007)
Debt	(7,124)
Other liabilities	(2,515)
Contingent Consideration, Purchase Price | PernixData Acquisition
Business Acquisition [Line Items]
Contingent consideration maximum	7,500
Contingent Consideration, Compensation | PernixData Acquisition
Business Acquisition [Line Items]
Contingent consideration maximum	$ 11,500
Minimum | In-process R&D | PernixData Acquisition
Business Acquisition [Line Items]
Estimated Life (in years)	5 years
Maximum | In-process R&D | PernixData Acquisition
Business Acquisition [Line Items]
Estimated Life (in years)	7 years