REVENUE AND CONTRACT BALANCES - Schedule of Revenue from External Customers by Geographic Areas (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]
Revenue	$ 258,913	$ 210,648	$ 730,125	$ 595,940
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	$ 154,804	$ 133,012	$ 446,895	$ 377,514
United States | Revenue from Contract with Customer Benchmark | Geographic Concentration Risk
Disaggregation of Revenue [Line Items]
% of Revenue	60.00%	63.00%	61.00%	63.00%
International
Disaggregation of Revenue [Line Items]
Revenue	$ 104,109	$ 77,636	$ 283,230	$ 218,426
International | Revenue from Contract with Customer Benchmark | Geographic Concentration Risk
Disaggregation of Revenue [Line Items]
% of Revenue	40.00%	37.00%	39.00%	37.00%