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PROPERTY AND EQUIPMENT, NET (Tables)
 12 Months Ended
Dec. 31, 2015
Property and Equipment, Net

Property and equipment consist of the following at December 31, 2015 and 2014, in thousands:

 

            At December 31,  
     Useful Life      2015      2014  

Laboratory equipment

      5 years       $ 33,558       $ 28,559   

Computer equipment and software

      3 years         5,732         4,440   

Furniture and fixtures

      5 years         2,906         1,999   

Leasehold improvements

      *         35,825         30,853   

Construction in progress

      —         1,285         1,982   
     

 

 

     

 

 

  
        79,306         67,833   

Less: accumulated depreciation

         (51,494 )       (46,093 ) 
     

 

 

     

 

 

  
      $ 27,812       $ 21,740   
     

 

 

     

 

 

  

 

* Shorter of asset life or lease term