Revenue, Accounts Receivable, Deferred Revenue, and Remaining Performance Obligations - Revenue from External Customers by Geographic Areas (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2023	Oct. 31, 2022	Oct. 31, 2023	Oct. 31, 2022
Disaggregation of Revenue [Line Items]
Revenue	$ 734,173	$ 557,028	$ 2,031,790	$ 1,476,647
United States
Disaggregation of Revenue [Line Items]
Revenue	569,743	441,432	1,569,099	1,171,641
Other Americas
Disaggregation of Revenue [Line Items]
Revenue	18,083	11,637	52,781	31,316
EMEA
Disaggregation of Revenue [Line Items]
Revenue	110,412	79,326	311,586	207,010
Asia-Pacific and Japan
Disaggregation of Revenue [Line Items]
Revenue	$ 35,935	$ 24,633	$ 98,324	$ 66,680