Property and Equipment, Net - Schedule of Property and Equipment, Net (Details) - USD ($) $ in Thousands	Oct. 31, 2025	Jan. 31, 2025
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	$ 117,774	$ 116,028
Less: accumulated depreciation	(84,837)	(76,339)
Total property and equipment, net	32,937	39,689
Computer software
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	25,486	24,086
Office equipment
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	23,792	23,529
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	7,227	7,894
Leasehold improvements
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	59,919	59,944
Construction in progress
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	40	27
Software in progress
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	$ 1,310	$ 548