Equity - Shares Reserved For Future Issuance (Details) - shares shares in Thousands	Jan. 31, 2023	Jan. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award
Common stock reserved for future issuances (shares)	115,449	105,310
Employee stock purchase rights under the 2020 ESPP
Share-based Compensation Arrangement by Share-based Payment Award
Common stock reserved for future issuances (shares)	11,046	8,209
2012 Plan | Stock options
Share-based Compensation Arrangement by Share-based Payment Award
Common stock reserved for future issuances (shares)	35,212	42,043
2012 Plan | RSUs
Share-based Compensation Arrangement by Share-based Payment Award
Common stock reserved for future issuances (shares)	2,521	4,530
2020 Plan | Stock options
Share-based Compensation Arrangement by Share-based Payment Award
Common stock reserved for future issuances (shares)	642	0
2020 Plan | RSUs
Share-based Compensation Arrangement by Share-based Payment Award
Common stock reserved for future issuances (shares)	13,039	5,082
2020 Plan | Shares available for future grants
Share-based Compensation Arrangement by Share-based Payment Award
Common stock reserved for future issuances (shares)	52,989	45,446