Revenue, Accounts Receivable, Deferred Revenue, and Remaining Performance Obligations - Revenue from External Customers by Geographic Areas (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2024	Jan. 31, 2023	Jan. 31, 2022
Disaggregation of Revenue [Line Items]
Revenue	$ 2,806,489	$ 2,065,659	$ 1,219,327
United States
Disaggregation of Revenue [Line Items]
Revenue	2,166,448	1,633,843	977,077
Other Americas
Disaggregation of Revenue [Line Items]
Revenue	72,784	46,577	26,324
EMEA
Disaggregation of Revenue [Line Items]
Revenue	432,634	292,666	169,268
Asia-Pacific and Japan
Disaggregation of Revenue [Line Items]
Revenue	$ 134,623	$ 92,573	$ 46,658