Balance Sheet Components - Property plant and equipment (Details) - USD ($) $ in Thousands	Apr. 30, 2024	Jan. 31, 2024
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	$ 108,863	$ 129,336
Less: accumulated depreciation and amortization	(62,880)	(81,463)
Total property and equipment, net	45,983	47,873
Equipment
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	68,799	91,645
Capitalized internal-use software
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	23,555	21,191
Leasehold improvements
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	12,264	12,350
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	$ 4,245	$ 4,150