Quarterly report pursuant to Section 13 or 15(d)

Property and Equipment - Schedule of Property and Equipment (Detail)

v3.20.2
Property and Equipment - Schedule of Property and Equipment (Detail) - USD ($)
$ in Thousands
Sep. 30, 2020
Dec. 31, 2019
Property Plant And Equipment [Line Items]    
Property and equipment, gross $ 69,571 $ 65,854
Less: accumulated depreciation and amortization (17,617) (11,678)
Property and equipment, net 51,954 54,176
Leasehold Improvements    
Property Plant And Equipment [Line Items]    
Property and equipment, gross 50,038 49,028
Lab Equipment    
Property Plant And Equipment [Line Items]    
Property and equipment, gross 7,862 6,815
Machinery and Equipment    
Property Plant And Equipment [Line Items]    
Property and equipment, gross 4,531 3,832
Computer Equipment and Software    
Property Plant And Equipment [Line Items]    
Property and equipment, gross 4,071 3,299
Furniture and Fixtures    
Property Plant And Equipment [Line Items]    
Property and equipment, gross 2,052 1,764
Construction in Progress    
Property Plant And Equipment [Line Items]    
Property and equipment, gross $ 1,017 $ 1,116