Annual report pursuant to Section 13 and 15(d)

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

v3.6.0.2
Property and Equipment - Summary of Property and Equipment (Detail) - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Property, Plant and Equipment [Line Items]    
Property and equipment, Gross $ 12,196 $ 7,762
Less accumulated depreciation and amortization (5,639) (4,846)
Property and equipment, Net 6,557 2,916
Laboratory equipment [Member]    
Property, Plant and Equipment [Line Items]    
Property and equipment, Gross 6,206 5,801
Furniture and fixtures [Member]    
Property, Plant and Equipment [Line Items]    
Property and equipment, Gross 636 652
Leasehold improvements [Member]    
Property, Plant and Equipment [Line Items]    
Property and equipment, Gross 1,330 $ 1,309
Buildings [Member]    
Property, Plant and Equipment [Line Items]    
Property and equipment, Gross 3,876  
Construction in Progress [Member]    
Property, Plant and Equipment [Line Items]    
Property and equipment, Gross $ 148