Revenues - Disaggregation of Revenue by Product and Service (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2022	Jul. 31, 2021	Jul. 31, 2022	Jul. 31, 2021
Disaggregation of Revenue [Line Items]
Total revenue	$ 101,041	$ 58,127	$ 188,448	$ 108,057
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%	100.00%
Subscription—self-managed and SaaS
Disaggregation of Revenue [Line Items]
Total revenue	$ 88,936	$ 51,860	$ 165,859	$ 96,768
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	88.00%	89.00%	88.00%	90.00%
Subscription—self-managed
Disaggregation of Revenue [Line Items]
Total revenue	$ 66,896	$ 41,412	$ 126,615	$ 77,527
Subscription—self-managed | Revenue from Contract with Customer, Product and Service Benchmark | Product Concentration Risk
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	66.00%	71.00%	67.00%	72.00%
SaaS
Disaggregation of Revenue [Line Items]
Total revenue	$ 22,040	$ 10,448	$ 39,244	$ 19,241
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%	21.00%	18.00%
License—self-managed and other
Disaggregation of Revenue [Line Items]
Total revenue	$ 12,105	$ 6,267	$ 22,589	$ 11,289
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	12.00%	11.00%	12.00%	10.00%
License—self-managed
Disaggregation of Revenue [Line Items]
Total revenue	$ 10,009	$ 4,776	$ 18,786	$ 8,443
License—self-managed | Revenue from Contract with Customer, Product and Service Benchmark | Product Concentration Risk
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	10.00%	8.00%	10.00%	8.00%
Professional services and other
Disaggregation of Revenue [Line Items]
Total revenue	$ 2,096	$ 1,491	$ 3,803	$ 2,846
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%	3.00%	2.00%	2.00%