Revenues - Disaggregation of Revenue by Product and Service (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2023	Jan. 31, 2022	Jan. 31, 2021
Disaggregation of Revenue [Line Items]
Total revenue	$ 424,336	$ 252,653	$ 152,176
Revenue from Contract with Customer, Product and Service Benchmark | Product Concentration Risk
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	100.00%	100.00%	100.00%
Subscription—self-managed and SaaS
Disaggregation of Revenue [Line Items]
Total revenue	$ 369,349	$ 226,163	$ 132,763
Subscription—self-managed and SaaS | Revenue from Contract with Customer, Product and Service Benchmark | Product Concentration Risk
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	87.00%	90.00%	87.00%
Subscription—self-managed
Disaggregation of Revenue [Line Items]
Total revenue	$ 275,275	$ 179,564	$ 114,949
Subscription—self-managed | Revenue from Contract with Customer, Product and Service Benchmark | Product Concentration Risk
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	65.00%	72.00%	75.00%
SaaS
Disaggregation of Revenue [Line Items]
Total revenue	$ 94,074	$ 46,599	$ 17,814
SaaS | Revenue from Contract with Customer, Product and Service Benchmark | Product Concentration Risk
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	22.00%	18.00%	12.00%
License—self-managed and other
Disaggregation of Revenue [Line Items]
Total revenue	$ 54,987	$ 26,490	$ 19,413
License—self-managed and other | Revenue from Contract with Customer, Product and Service Benchmark | Product Concentration Risk
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	13.00%	10.00%	13.00%
License—self-managed
Disaggregation of Revenue [Line Items]
Total revenue	$ 46,046	$ 20,171	$ 14,525
License—self-managed | Revenue from Contract with Customer, Product and Service Benchmark | Product Concentration Risk
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	11.00%	8.00%	10.00%
Professional services and other
Disaggregation of Revenue [Line Items]
Total revenue	$ 8,941	$ 6,319	$ 4,888
Professional services and other | Revenue from Contract with Customer, Product and Service Benchmark | Product Concentration Risk
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	2.00%	2.00%	3.00%