Common Stock - Reserved for Future Issuance (Details)	Oct. 31, 2021 shares
Class of Stock [Line Items]
Total shares of common stock reserved (in shares)	111,132,060
2021 Stock Option Plan
Class of Stock [Line Items]
Total shares of common stock reserved (in shares)	36,436,447
Common Stock Warrants
Class of Stock [Line Items]
Total shares of common stock reserved (in shares)	37,756,829
Options to purchase common stock
Class of Stock [Line Items]
Total shares of common stock reserved (in shares)	24,855,043
Restricted stock units
Class of Stock [Line Items]
Total shares of common stock reserved (in shares)	3,906,058
Employee stock purchase plan
Class of Stock [Line Items]
Total shares of common stock reserved (in shares)	8,177,683