Revenues - Disaggregation of Revenue by Product and Service (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2024	Jan. 31, 2023	Jan. 31, 2022
Disaggregation of Revenue [Line Items]
Total revenue	$ 579,906	$ 424,336	$ 252,653
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	$ 506,306	$ 369,349	$ 226,163
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%	87.00%	90.00%
Subscription—self-managed
Disaggregation of Revenue [Line Items]
Total revenue	$ 355,707	$ 275,275	$ 179,564
Subscription—self-managed | Revenue from Contract with Customer, Product and Service Benchmark | Product Concentration Risk
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	61.00%	65.00%	72.00%
SaaS
Disaggregation of Revenue [Line Items]
Total revenue	$ 150,599	$ 94,074	$ 46,599
SaaS | Revenue from Contract with Customer, Product and Service Benchmark | Product Concentration Risk
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	26.00%	22.00%	18.00%
License—self-managed and other
Disaggregation of Revenue [Line Items]
Total revenue	$ 73,600	$ 54,987	$ 26,490
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%	13.00%	10.00%
License—self-managed
Disaggregation of Revenue [Line Items]
Total revenue	$ 63,110	$ 46,046	$ 20,171
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%	11.00%	8.00%
Professional services and other
Disaggregation of Revenue [Line Items]
Total revenue	$ 10,490	$ 8,941	$ 6,319
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%	2.00%