REVENUE AND CONTRACT BALANCES - Schedule of Revenue from External Customers by Geographic Areas (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 30, 2026	Apr. 30, 2025
Disaggregation of Revenue [Line Items]
Revenue	$ 276,657	$ 229,029
Revenue from Contract with Customer Benchmark | Geographic Concentration Risk
Disaggregation of Revenue [Line Items]
% of Revenue	100.00%	100.00%
United States
Disaggregation of Revenue [Line Items]
Revenue	$ 168,104	$ 142,442
United States | Revenue from Contract with Customer Benchmark | Geographic Concentration Risk
Disaggregation of Revenue [Line Items]
% of Revenue	61.00%	62.00%
International
Disaggregation of Revenue [Line Items]
Revenue	$ 108,553	$ 86,587
International | Revenue from Contract with Customer Benchmark | Geographic Concentration Risk
Disaggregation of Revenue [Line Items]
% of Revenue	39.00%	38.00%