Equity - Shares Reserved For Future Issuance (Details) - shares shares in Thousands	Jan. 31, 2026	Jan. 31, 2025
Share-based Compensation Arrangement by Share-based Payment Award
Common stock reserved for future issuances (shares)	132,860	127,723
ESPP Rights
Share-based Compensation Arrangement by Share-based Payment Award
Common stock reserved for future issuances (shares)	5,700
2012 Plan | Stock options
Share-based Compensation Arrangement by Share-based Payment Award
Common stock reserved for future issuances (shares)	12,274	20,067
2020 Plan
Share-based Compensation Arrangement by Share-based Payment Award
Common stock reserved for future issuances (shares)	34,100
2020 Plan | Stock options
Share-based Compensation Arrangement by Share-based Payment Award
Common stock reserved for future issuances (shares)	1,492	1,586
2020 Plan | RSUs
Share-based Compensation Arrangement by Share-based Payment Award
Common stock reserved for future issuances (shares)	21,537	24,790
2020 Plan | Shares available for future grants
Share-based Compensation Arrangement by Share-based Payment Award
Common stock reserved for future issuances (shares)	78,590	64,834
2020 Employee Stock Purchase Plan | ESPP Rights
Share-based Compensation Arrangement by Share-based Payment Award
Common stock reserved for future issuances (shares)	18,967	16,446