SUPPLEMENTAL FINANCIAL STATEMENT INFORMATION - Schedule of Property and Equipment, Net (Details) - USD ($) $ in Thousands	Jan. 31, 2026	Jan. 31, 2025
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 141,864	$ 108,864
Less: Accumulated depreciation and amortization	(57,856)	(37,090)
Total property and equipment, net	84,008	71,774
Office furniture and fixtures
Property, Plant and Equipment [Line Items]
Total property and equipment	1,490	1,594
Computers, software, and equipment
Property, Plant and Equipment [Line Items]
Total property and equipment	3,997	3,476
Capitalized internal-use software
Property, Plant and Equipment [Line Items]
Total property and equipment	124,678	90,694
Leasehold improvements
Property, Plant and Equipment [Line Items]
Total property and equipment	11,669	12,968
Construction in progress
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 30	$ 132