Balance Sheet Components - Property plant and equipment (Details) - USD ($) $ in Thousands	Jan. 31, 2025	Jan. 31, 2024
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	$ 129,147	$ 129,336
Less: accumulated depreciation and amortization	(75,953)	(81,463)
Total property and equipment, net	53,194	47,873
Equipment
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	75,589	91,645
Capitalized internal-use software
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	36,132	21,191
Leasehold improvements
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	12,739	12,350
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	$ 4,687	$ 4,150