Property and Equipment, Net - Schedule of Property and Equipment, Net (Details) - USD ($) $ in Thousands	Oct. 31, 2025	Jan. 31, 2025
Property, Plant and Equipment
Total property and equipment, gross	$ 476,242	$ 449,834
Less: accumulated depreciation and amortization	(210,398)	(153,441)
Total property and equipment, net	265,844	296,393
Leasehold improvements
Property, Plant and Equipment
Total property and equipment, gross	125,781	97,324
Computers, equipment, and software
Property, Plant and Equipment
Total property and equipment, gross	68,069	49,575
Furniture and fixtures
Property, Plant and Equipment
Total property and equipment, gross	31,396	25,473
Capitalized software development costs
Property, Plant and Equipment
Total property and equipment, gross	228,715	209,684
Less: accumulated depreciation and amortization	(135,200)	(84,800)
Construction in progress—capitalized software development costs
Property, Plant and Equipment
Total property and equipment, gross	7,851	28,672
Construction in progress—other
Property, Plant and Equipment
Total property and equipment, gross	$ 14,430	$ 39,106