BALANCE SHEET COMPONENTS - Accrued Liabilities (Details) - USD ($) $ in Thousands	Apr. 30, 2018	Jul. 31, 2017
Other Liabilities Disclosure [Abstract]
Accrued professional services	$ 4,614	$ 4,167
Income taxes payable	2,903	3,873
Other	4,128	1,667
Total accrued expenses and other current liabilities	$ 11,645	$ 9,707	[1]

[1] See Note 3 for a summary of adjustments related to the adoption of the new revenue recognition standard.