Balance Sheet Components - Property and Equipment, Net (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2023	Jan. 31, 2022	Jan. 31, 2021
Property, Plant and Equipment [Line Items]
Property and equipment	$ 83,600	$ 69,630
Less: Accumulated depreciation	(43,554)	(35,037)
Total Property and Equipment, Net	40,046	34,593
Depreciation expense	13,404	11,840	$ 10,083
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property and equipment	1,244	903
Computers and software
Property, Plant and Equipment [Line Items]
Property and equipment	7,164	6,147
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property and equipment	25,144	16,193
Tooling
Property, Plant and Equipment [Line Items]
Property and equipment	13,782	10,572
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment	9,357	10,549
Owned and operated systems
Property, Plant and Equipment [Line Items]
Property and equipment	24,119	22,546
Construction in progress
Property, Plant and Equipment [Line Items]
Property and equipment	$ 2,790	$ 2,720