Stockholders' Equity (Deficit) and Equity Incentive Plans - Stocks Reserved for Future Issuance (Details) - shares	Jan. 31, 2023	Jan. 31, 2022	Sep. 17, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for issuance (in shares)	38,350,000	40,150,000
Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for issuance (in shares)	45,000	94,000
Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for issuance (in shares)	10,556,000	15,928,000
RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for issuance (in shares)	15,699,000	9,502,000
Future issuance under equity incentive plans
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for issuance (in shares)	9,154,000	12,131,000
ESPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for issuance (in shares)	2,885,000	2,484,000	2,000,000
Warrants
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for issuance (in shares)	11,000	11,000

Sumo Logic, Inc. 10-K