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Property and Equipment, Net
 9 Months Ended
Sep. 30, 2017
Property Plant And Equipment [Abstract]  
Property and Equipment, Net

5.

Property and Equipment, Net

Property and equipment, net consisted of the following:

 

 

 

September 30,

2017

 

 

December 31,

2016

 

Laboratory equipment

 

$

12,544

 

 

$

10,711

 

Computer equipment

 

 

2,555

 

 

 

1,335

 

Furniture and office equipment

 

 

1,033

 

 

 

1,010

 

Leasehold improvements

 

 

27,896

 

 

 

27,807

 

Construction in progress

 

 

232

 

 

 

442

 

 

 

 

44,260

 

 

 

41,305

 

Less: Accumulated depreciation and amortization

 

 

(10,536

)

 

 

(5,180

)

 

 

$

33,724

 

 

$

36,125

 

 

Depreciation and amortization expense was $1,866, $5,356, $1,251, and $2,511 for the three and nine months ended September 30, 2017 and 2016, respectively.