Financial Statement Components - Schedule of Property and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 98,431	$ 94,735
Accumulated depreciation and amortization	(46,150)	(28,435)
Total property and equipment, net	52,281	66,300
Machinery and equipment
Property, Plant and Equipment [Line Items]
Total property and equipment	62,982	58,815
Computer hardware and software
Property, Plant and Equipment [Line Items]
Total property and equipment	8,404	7,025
Land
Property, Plant and Equipment [Line Items]
Total property and equipment	1,001	1,001
Leasehold improvements
Property, Plant and Equipment [Line Items]
Total property and equipment	22,620	22,531
Vehicles, including demonstration fleet
Property, Plant and Equipment [Line Items]
Total property and equipment	2,139	2,207
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Total property and equipment	398	900
Construction in progress
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 887	$ 2,256