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Condensed consolidated financial statement details - Property and Equipment, Net (Details) - USD ($)
$ in Thousands
Jun. 30, 2024
Dec. 31, 2023
Property, Plant and Equipment [Line Items]    
Gross property and equipment $ 86,648 $ 88,126
Less: Accumulated depreciation and amortization (77,637) (79,440)
Property and equipment, net 9,011 8,686
Leasehold Improvements [Member]    
Property, Plant and Equipment [Line Items]    
Gross property and equipment 23,936 23,818
Production, engineering and other equipment [Member]    
Property, Plant and Equipment [Line Items]    
Gross property and equipment 37,010 38,574
Tooling [Member]    
Property, Plant and Equipment [Line Items]    
Gross property and equipment 5,647 5,678
Computers and software [Member]    
Property, Plant and Equipment [Line Items]    
Gross property and equipment 13,807 13,896
Furniture and office equipment [Member]    
Property, Plant and Equipment [Line Items]    
Gross property and equipment 3,790 4,575
Tradeshow Equipment and other [Member]    
Property, Plant and Equipment [Line Items]    
Gross property and equipment 1,452 1,502
Construction in Progress [Member]    
Property, Plant and Equipment [Line Items]    
Gross property and equipment $ 1,006 $ 83