Balance Sheet Components Balance Sheet Components (Details 7) - USD ($) $ in Thousands	Jul. 31, 2018	Jul. 31, 2017
Deferred Revenue Arrangement [Line Items]
Total deferred revenue, current	$ 114,138	$ 91,243
Deferred revenue, non-current	23,758	19,892
Total	137,896	111,135
Deferred license and other revenue
Deferred Revenue Arrangement [Line Items]
Total deferred revenue, current	42,235	21,018
Deferred maintenance revenue
Deferred Revenue Arrangement [Line Items]
Total deferred revenue, current	52,010	46,562
Deferred services revenue
Deferred Revenue Arrangement [Line Items]
Total deferred revenue, current	$ 19,893	$ 23,663