Balance Sheet Components - Schedule of Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Thousands	Oct. 31, 2021	Jul. 31, 2021
Other Liabilities Disclosure [Abstract]
Income taxes payable	$ 10,409	$ 13,309
Accrued professional services	6,773	3,541
Other	16,327	22,554
Total accrued expenses and other current liabilities	$ 33,509	$ 39,404