Net Loss Per Share - Schedule of Net Loss Per Share, Basic and Diluted (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Jul. 31, 2024	Jul. 31, 2023	Jul. 31, 2022
Earnings Per Share [Abstract]
Net loss, basic	$ (57,706)	$ (202,335)	$ (390,278)
Net loss, diluted	$ (57,706)	$ (202,335)	$ (390,278)
Weighted-average shares used in computing net loss per share, basic (in shares)	149,586	144,942	140,895
Weighted-average shares used in computing net loss per share, diluted (in shares)	149,586	144,942	140,895
Net loss per share, basic (in dollars per share)	$ (0.39)	$ (1.40)	$ (2.77)
Net loss per share, diluted (in dollars per share)	$ (0.39)	$ (1.40)	$ (2.77)