Revenue, Accounts Receivable, Deferred Revenue, and Remaining Performance Obligations - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2025	Jul. 31, 2024	Jul. 31, 2025	Jul. 31, 2024
Disaggregation of Revenue [Line Items]
Revenue	$ 1,144,969	$ 868,823	$ 2,187,043	$ 1,697,532
Product revenue
Disaggregation of Revenue [Line Items]
Revenue	1,090,496	829,250	2,087,309	1,618,837
Professional services and other revenue
Disaggregation of Revenue [Line Items]
Revenue	$ 54,473	$ 39,573	$ 99,734	$ 78,695