CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Apr. 30, 2022	Jul. 31, 2021
Accounts receivable, allowance for credit loss	$ 633	$ 892
Preferred stock, par value (in dollars per share)	$ 0.000025	$ 0.000025
Preferred stock, shares authorized (in shares)	200,000,000	200,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.000025	$ 0.000025
Common stock, shares authorized (in shares)	1,042,004,000	1,200,000,000
Common stock, shares issued (in shares)	224,285,000	214,210,000
Common stock, shares outstanding (in shares)	224,285,000	214,210,000
Common Class A
Common stock, par value (in dollars per share)	$ 0.000025	$ 0.000025
Common stock, shares authorized (in shares)	1,000,000,000	1,000,000,000
Common stock, shares issued (in shares)	224,285,000	208,579,000
Common stock, shares outstanding (in shares)	224,285,000	208,579,000
Common Class B
Common stock, par value (in dollars per share)	$ 0.000025	$ 0.000025
Common stock, shares authorized (in shares)	42,004,000	200,000,000
Common stock, shares issued (in shares)	0	5,631,000
Common stock, shares outstanding (in shares)	0	5,631,000