BALANCE SHEET COMPONENTS - Property and Equipment (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Property, Plant and Equipment, Gross	$ 94,036	$ 86,863
Less: accumulated depreciation and amortization	(48,017)	(49,525)
Total property and equipment	46,019	37,338
Computer Equipment
Property, Plant and Equipment, Gross	11,919	12,515
Software
Property, Plant and Equipment, Gross	5,647	5,596
Furniture, Fixtures, and Equipment
Property, Plant and Equipment, Gross	2,543	2,501
Leasehold Improvements
Property, Plant and Equipment, Gross	6,705	6,475
Laboratory and Other Equipment
Property, Plant and Equipment, Gross	5,621	4,891
Test Equipment
Property, Plant and Equipment, Gross	26,286	25,044
DFI System Assets
Property, Plant and Equipment, Gross	27,991	22,864
CV System and Other Assets
Property, Plant and Equipment, Gross	$ 7,324	$ 6,977