Balance Sheet Components - Schedule of Property and Equipment (Details) - USD ($) $ in Thousands	Oct. 31, 2025	Jan. 31, 2025
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 664,119	$ 658,596
Less: accumulated depreciation and amortization	(379,268)	(328,121)
Property and equipment, net	284,851	330,475
Servers
Property, Plant and Equipment [Line Items]
Property and equipment, gross	406,523	427,664
Software
Property, Plant and Equipment [Line Items]
Property and equipment, gross	148,035	123,259
Computer and office equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	46,233	47,021
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	57,591	54,885
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 5,737	$ 5,767