ACQUISITIONS - Prompt and Observo Narrative (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Oct. 31, 2025	Oct. 31, 2025	Oct. 31, 2024
Business Combination [Line Items]
Stock-based compensation expense		$ 217,880	$ 193,418
Prompt Security, Inc
Business Combination [Line Items]
Business acquisition, transaction costs	$ 1,800	1,800
Stock-based compensation expense	1,400
Observo
Business Combination [Line Items]
Business acquisition, transaction costs	1,600	$ 1,600
Stock-based compensation expense	$ 2,500