Annual report pursuant to Section 13 and 15(d)

Property and Equipment, Net - Summary of Property and Equipment, Net (Details)

v3.19.1
Property and Equipment, Net - Summary of Property and Equipment, Net (Details) - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Property Plant And Equipment [Line Items]    
Total $ 40,230 $ 39,011
Less accumulated depreciation and amortization (29,296) (25,014)
Total property and equipment, net 10,934 13,997
Computer Equipment and Software    
Property Plant And Equipment [Line Items]    
Total 1,484 1,372
Furniture and Office Equipment    
Property Plant And Equipment [Line Items]    
Total 492 492
Laboratory Equipment    
Property Plant And Equipment [Line Items]    
Total 22,464 21,375
Leasehold Improvements    
Property Plant And Equipment [Line Items]    
Total $ 15,790 $ 15,772