Revenues - Disaggregation of Revenue by Product and Service (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2025	Oct. 31, 2024	Oct. 31, 2025	Oct. 31, 2024
Disaggregation of Revenue [Line Items]
Total revenue	$ 244,353	$ 196,047	$ 694,822	$ 547,818
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	$ 223,262	$ 175,257	$ 630,427	$ 489,617
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%	91.00%	89.00%
Subscription—self-managed
Disaggregation of Revenue [Line Items]
Total revenue	$ 146,379	$ 118,525	$ 417,329	$ 333,744
Subscription—self-managed | Revenue from Contract with Customer, Product and Service Benchmark | Product Concentration Risk
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	60.00%	60.00%	59.00%	61.00%
SaaS
Disaggregation of Revenue [Line Items]
Total revenue	$ 76,883	$ 56,732	$ 213,098	$ 155,873
SaaS | Revenue from Contract with Customer, Product and Service Benchmark | Product Concentration Risk
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	31.00%	29.00%	32.00%	28.00%
License—self-managed and other
Disaggregation of Revenue [Line Items]
Total revenue	$ 21,091	$ 20,790	$ 64,395	$ 58,201
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%	9.00%	11.00%
License—self-managed
Disaggregation of Revenue [Line Items]
Total revenue	$ 15,525	$ 16,655	$ 48,696	$ 47,294
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%	7.00%	9.00%
Professional services and other
Disaggregation of Revenue [Line Items]
Total revenue	$ 5,566	$ 4,135	$ 15,699	$ 10,907
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%	2.00%