Balance Sheet Components - Property plant and equipment (Details) - USD ($) $ in Thousands	Apr. 30, 2025	Jan. 31, 2025
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	$ 138,557	$ 129,147
Less: accumulated depreciation and amortization	(83,622)	(75,953)
Total property and equipment, net	54,935	53,194
Equipment
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	78,224	75,589
Capitalized internal-use software
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	41,164	36,132
Leasehold improvements
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	14,371	12,739
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	$ 4,798	$ 4,687