Common Stock and Stockholders' Equity (Deficit) - Schedule of Reserved Shares of Common Stock for Future Issuance (Details) - shares	Jul. 31, 2022	Jan. 31, 2022
Class Of Stock [Line Items]
Common stock capital shares reserved for future issuance	49,024,402	42,248,307
2021 Plan
Class Of Stock [Line Items]
Remaining shares available for future issuance	23,084,726	17,560,879
2021 Employee Stock Purchase Plan
Class Of Stock [Line Items]
Common stock capital shares reserved for future issuance	3,370,329	1,900,000
Options Outstanding
Class Of Stock [Line Items]
Common stock capital shares reserved for future issuance	10,583,909	12,381,134
Restricted stock units outstanding
Class Of Stock [Line Items]
Common stock capital shares reserved for future issuance	11,985,438	10,406,294