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Property and Equipment (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Property and Equipment    
Property and equipment, gross $ 62,378 $ 58,350
Less accumulated depreciation (19,882) (14,487)
Net property and equipment 42,496 43,863
Depreciation and amortization 5,700 8,400
Leasehold improvements    
Property and Equipment    
Property and equipment, gross 24,168 24,146
Research equipment    
Property and Equipment    
Property and equipment, gross 16,663 15,387
Construction in progress    
Property and Equipment    
Property and equipment, gross 8,229 5,870
Computer equipment    
Property and Equipment    
Property and equipment, gross 5,720 5,546
Land    
Property and Equipment    
Property and equipment, gross 3,190 3,190
Furniture and fixtures    
Property and Equipment    
Property and equipment, gross 3,163 2,880
Computer software    
Property and Equipment    
Property and equipment, gross 1,174 1,207
Vehicles    
Property and Equipment    
Property and equipment, gross $ 71 $ 124