Revenue, Accounts Receivable, Deferred Revenue, and Remaining Performance Obligations - Disaggregation of Revenue (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	$ 1,212,909	$ 942,094	$ 3,399,952	$ 2,639,626
Product revenue
Disaggregation of Revenue [Line Items]
Revenue	1,158,377	900,282	3,245,686	2,519,119
Professional services and other revenue
Disaggregation of Revenue [Line Items]
Revenue	$ 54,532	$ 41,812	$ 154,266	$ 120,507