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BALANCE SHEET COMPONENTS BALANCE SHEET COMPONENTS - Other Assets, Non-current (Details) - USD ($)
$ in Thousands
Jul. 31, 2018
Jul. 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]    
Other tax assets—non-current $ 30,927 $ 0
Deferred Tax Assets, Net, Noncurrent   3,420
Deferred tax assets—non-current 2,860 3,176
Other 4,068 4,229
Total other assets—non-current $ 37,855 $ 7,649