Balance Sheet Components - Summary of Deferred Revenue (Detail) - USD ($) $ in Thousands	Jul. 31, 2016	Jul. 31, 2015
Deferred revenue:
Total deferred revenue	$ 53,889	$ 40,802
Less: current portion of deferred revenue	(44,833)	(35,648)
Non-current portion of deferred revenue	9,056	5,154
License [Member]
Deferred revenue:
Total deferred revenue	5,548	8,066
Subscription [Member]
Deferred revenue:
Total deferred revenue	28,529	19,856
Support [Member]
Deferred revenue:
Total deferred revenue	11,415	8,716
Professional services and other [Member]
Deferred revenue:
Total deferred revenue	$ 8,397	$ 4,164