Balance Sheet Components - Schedule of Property and Equipment (Details) - USD ($) $ in Thousands	Jul. 31, 2025	Jan. 31, 2025
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 676,056	$ 658,596
Less: accumulated depreciation and amortization	(374,599)	(328,121)
Property and equipment, net	301,457	330,475
Servers
Property, Plant and Equipment [Line Items]
Property and equipment, gross	423,793	427,664
Software
Property, Plant and Equipment [Line Items]
Property and equipment, gross	144,924	123,259
Computer and office equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	44,489	47,021
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	57,169	54,885
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 5,681	$ 5,767