REVENUE AND CONTRACT BALANCES - Schedule of Revenue from External Customers by Geographic Areas (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2026	Jul. 31, 2025	Jul. 31, 2026	Jul. 31, 2025
Disaggregation of Revenue [Line Items]
Revenue	$ 291,981	$ 242,183	$ 568,638	$ 471,212
Revenue from Contract with Customer Benchmark | Geographic Concentration Risk
Disaggregation of Revenue [Line Items]
% of Revenue	100.00%	100.00%	100.00%	100.00%
United States
Disaggregation of Revenue [Line Items]
Revenue	$ 178,044	$ 149,650	$ 346,149	$ 292,091
United States | Revenue from Contract with Customer Benchmark | Geographic Concentration Risk
Disaggregation of Revenue [Line Items]
% of Revenue	61.00%	62.00%	61.00%	62.00%
International
Disaggregation of Revenue [Line Items]
Revenue	$ 113,937	$ 92,533	$ 222,489	$ 179,121
International | Revenue from Contract with Customer Benchmark | Geographic Concentration Risk
Disaggregation of Revenue [Line Items]
% of Revenue	39.00%	38.00%	39.00%	38.00%