Annual report pursuant to Section 13 and 15(d)

Balance Sheet Details - Property and Equipment (Detail)

v3.20.4
Balance Sheet Details - Property and Equipment (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Property, Plant and Equipment [Line Items]      
Depreciation $ 11,300 $ 7,300 $ 11,100
Property and equipment, Gross 109,300 75,956  
Less accumulated depreciation and amortization (69,830) (59,343)  
Property and equipment, net $ 39,470 16,613  
Minimum [Member]      
Property, Plant and Equipment [Line Items]      
Property, Plant and Equipment, Useful Life 2 years    
Maximum [Member]      
Property, Plant and Equipment [Line Items]      
Property, Plant and Equipment, Useful Life 5 years    
Furniture and fixtures [Member]      
Property, Plant and Equipment [Line Items]      
Property, Plant and Equipment, Useful Life 5 years    
Property and equipment, Gross $ 2,524 2,199  
Machinery and equipment [Member]      
Property, Plant and Equipment [Line Items]      
Property and equipment, Gross $ 55,456 35,660  
Machinery and equipment [Member] | Minimum [Member]      
Property, Plant and Equipment [Line Items]      
Property, Plant and Equipment, Useful Life 3 years    
Machinery and equipment [Member] | Maximum [Member]      
Property, Plant and Equipment [Line Items]      
Property, Plant and Equipment, Useful Life 5 years    
Masks and production equipment [Member]      
Property, Plant and Equipment [Line Items]      
Property and equipment, Gross $ 19,205 15,209  
Masks and production equipment [Member] | Minimum [Member]      
Property, Plant and Equipment [Line Items]      
Property, Plant and Equipment, Useful Life 2 years    
Masks and production equipment [Member] | Maximum [Member]      
Property, Plant and Equipment [Line Items]      
Property, Plant and Equipment, Useful Life 5 years    
Software [Member]      
Property, Plant and Equipment [Line Items]      
Property, Plant and Equipment, Useful Life 3 years    
Software and Software Development Costs [Member]      
Property, Plant and Equipment [Line Items]      
Property and equipment, Gross $ 7,194 5,956  
Leasehold improvements [Member]      
Property, Plant and Equipment [Line Items]      
Property and equipment, Gross $ 16,871 16,186  
Leasehold improvements [Member] | Minimum [Member]      
Property, Plant and Equipment [Line Items]      
Property, Plant and Equipment, Useful Life 1 year    
Leasehold improvements [Member] | Maximum [Member]      
Property, Plant and Equipment [Line Items]      
Property, Plant and Equipment, Useful Life 5 years    
Construction in progress [Member]      
Property, Plant and Equipment [Line Items]      
Property and equipment, Gross $ 8,050 $ 746