Balance Sheet Components - Property plant and equipment (Details) - USD ($) $ in Thousands	Jul. 31, 2024	Jan. 31, 2024
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	$ 115,024	$ 129,336
Less: accumulated depreciation and amortization	(68,820)	(81,463)
Total property and equipment, net	46,204	47,873
Equipment
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	70,571	91,645
Capitalized internal-use software
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	27,498	21,191
Leasehold improvements
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	12,584	12,350
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	$ 4,371	$ 4,150