Quarterly report pursuant to Section 13 or 15(d)

Balance Sheet Details - Property and Equipment (Details 3)

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Balance Sheet Details - Property and Equipment (Details 3) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2020
Property, Plant and Equipment [Line Items]      
Property and equipment, gross $ 111,861   $ 109,300
Less accumulated depreciation and amortization (71,074)   (69,830)
Property and equipment, net 40,787   39,470
Depreciation $ 3,700 $ 1,600  
Furniture and fixtures      
Property, Plant and Equipment [Line Items]      
Useful life 5 years    
Property and equipment, gross $ 2,519   2,524
Machinery and equipment      
Property, Plant and Equipment [Line Items]      
Property and equipment, gross $ 54,021   55,456
Machinery and equipment | Minimum      
Property, Plant and Equipment [Line Items]      
Useful life 3 years    
Machinery and equipment | Maximum      
Property, Plant and Equipment [Line Items]      
Useful life 5 years    
Masks and production equipment      
Property, Plant and Equipment [Line Items]      
Property and equipment, gross $ 21,601   19,205
Masks and production equipment | Minimum      
Property, Plant and Equipment [Line Items]      
Useful life 2 years    
Masks and production equipment | Maximum      
Property, Plant and Equipment [Line Items]      
Useful life 5 years    
Software      
Property, Plant and Equipment [Line Items]      
Useful life 3 years    
Property and equipment, gross $ 7,831   7,194
Leasehold improvements      
Property, Plant and Equipment [Line Items]      
Property and equipment, gross $ 16,628   16,871
Leasehold improvements | Minimum      
Property, Plant and Equipment [Line Items]      
Useful life 1 year    
Leasehold improvements | Maximum      
Property, Plant and Equipment [Line Items]      
Useful life 5 years    
Construction in progress      
Property, Plant and Equipment [Line Items]      
Property and equipment, gross $ 9,261   $ 8,050