Revenue, Accounts Receivable, Deferred Revenue, and Remaining Performance Obligations - Revenue from External Customers by Geographic Areas (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
United States
Disaggregation of Revenue [Line Items]
Revenue	861,469	663,630	1,645,976	1,295,671
Other Americas
Disaggregation of Revenue [Line Items]
Revenue	30,570	22,777	60,231	46,512
EMEA
Disaggregation of Revenue [Line Items]
Revenue	185,315	137,872	354,124	269,529
Asia-Pacific and Japan
Disaggregation of Revenue [Line Items]
Revenue	$ 67,615	$ 44,544	$ 126,712	$ 85,820