XML 30 R15.htm IDEA: XBRL DOCUMENT v3.3.1.900
Property and Equipment, Net
 12 Months Ended
Dec. 31, 2015
Property, Plant and Equipment [Abstract]  
Property and Equipment, Net

9. Property and Equipment, Net

Property and equipment, net as of December 31, 2015 and 2014 consisted of the following:

 

     December 31,  
(in thousands)    2015      2014  

Lab equipment

    $ 19,305       $ 16,214   

IT equipment

      7,742         3,113   

Leasehold improvements

      21,026         18,219   

Furniture and fixtures

      910         624   

Construction in process

      2,243         472   
  

 

 

     

 

 

  

Total property and equipment, gross

      51,226         38,642   

Less: Accumulated depreciation

      (29,311 )       (24,140 ) 
  

 

 

     

 

 

  

Total property and equipment, net

    $ 21,915       $ 14,502   

Depreciation expense was $5.5 million, $4.2 million and $2.8 million for the years ended December 31, 2015, 2014 and 2013, respectively. Capitalized interest costs were insignificant for the years ended December 31, 2015, 2014 and 2013.

During the years ended December 31, 2015, 2014 and 2013, the Company disposed of $0.3 million, $1.6 million and $0.2 million, respectively, of fully depreciated assets. There were no recognized impairment charges related to fixed assets in the years ended December 31, 2015, 2014 or 2013.