Equity - Shares Reserved For Future Issuance (Details) - shares shares in Thousands	Jul. 31, 2025	Jan. 31, 2025
Share-based Compensation Arrangement by Share-based Payment Award
Common stock reserved for future issuances (in shares)	139,644	127,723
2012 Equity Incentive Plan: | Stock options
Share-based Compensation Arrangement by Share-based Payment Award
Common stock reserved for future issuances (in shares)	15,655	20,067
2020 Equity Incentive Plan | Stock options
Share-based Compensation Arrangement by Share-based Payment Award
Common stock reserved for future issuances (in shares)	1,586	1,586
2020 Equity Incentive Plan | RSUs
Share-based Compensation Arrangement by Share-based Payment Award
Common stock reserved for future issuances (in shares)	25,267	24,790
2020 Equity Incentive Plan | Shares available for future grants
Share-based Compensation Arrangement by Share-based Payment Award
Common stock reserved for future issuances (in shares)	77,906	64,834
2020 Employee Stock Purchase Plan | ESPP Rights
Share-based Compensation Arrangement by Share-based Payment Award
Common stock reserved for future issuances (in shares)	19,230	16,446