Revenues - Disaggregation of Revenue by Product and Service (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2026	Jan. 31, 2025	Jan. 31, 2024
Disaggregation of Revenue [Line Items]
Total revenue	$ 955,224	$ 759,249	$ 579,906
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	$ 864,704	$ 675,179	$ 506,306
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	91.00%	89.00%	87.00%
Subscription—self-managed
Disaggregation of Revenue [Line Items]
Total revenue	$ 568,459	$ 458,883	$ 355,707
Subscription—self-managed | Revenue from Contract with Customer, Product and Service Benchmark | Product Concentration Risk
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	59.00%	61.00%	61.00%
SaaS
Disaggregation of Revenue [Line Items]
Total revenue	$ 296,245	$ 216,296	$ 150,599
SaaS | Revenue from Contract with Customer, Product and Service Benchmark | Product Concentration Risk
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	32.00%	28.00%	26.00%
License—self-managed and other
Disaggregation of Revenue [Line Items]
Total revenue	$ 90,520	$ 84,070	$ 73,600
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	9.00%	11.00%	13.00%
License—self-managed
Disaggregation of Revenue [Line Items]
Total revenue	$ 68,870	$ 68,366	$ 63,110
License—self-managed | Revenue from Contract with Customer, Product and Service Benchmark | Product Concentration Risk
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	7.00%	9.00%	11.00%
Professional services and other
Disaggregation of Revenue [Line Items]
Total revenue	$ 21,650	$ 15,704	$ 10,490
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%