Property and Equipment, Net - Schedule of Property and Equipment, Net (Details) - USD ($) $ in Thousands	Jan. 31, 2025	Jan. 31, 2024
Property, Plant and Equipment
Total property and equipment, gross	$ 449,834	$ 322,105
Less: accumulated depreciation and amortization	(153,441)	(74,641)
Total property and equipment, net	296,393	247,464
Leasehold improvements
Property, Plant and Equipment
Total property and equipment, gross	97,324	67,804
Computers, equipment, and software
Property, Plant and Equipment
Total property and equipment, gross	49,575	29,859
Furniture and fixtures
Property, Plant and Equipment
Total property and equipment, gross	25,473	17,593
Capitalized internal-use software development costs
Property, Plant and Equipment
Total property and equipment, gross	209,684	93,222
Less: accumulated depreciation and amortization	(84,800)	(30,000)
Construction in progress—capitalized internal-use software development costs
Property, Plant and Equipment
Total property and equipment, gross	28,672	78,737
Construction in progress—other
Property, Plant and Equipment
Total property and equipment, gross	$ 39,106	$ 34,890