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Other Income (Expense), Net
 9 Months Ended
Sep. 30, 2013
Other Income And Expenses [Abstract]  
Other Income (Expense), Net
3. Other Income (Expense), Net

Other income (expense), net consists of the following:

 

     THREE MONTHS ENDED
SEPTEMBER 30,		     NINE MONTHS ENDED
SEPTEMBER 30,		     PERIOD FROM
INCEPTION
(JUNE 22, 2005) TO
SEPTEMBER 30,
2013		  
(in thousands)    2013     2012     2013     2012    

Interest expense

    $ (1,477 )   $ (15 )   $ (2,865 )   $ (15 )   $ (5,399 )

Gain on conversion of notes payable to related parties

      —         —         —         —          821  

Sale of New Jersey state tax benefit

      —         —         1,268       —         1,268  

(Expense)/income due to change in fair value measurements(1)

      (3,585 )     (788 )      (3,850 )     (441 )      (3,851 )

Other income, net

      —         —          1       29        973  
  

 

 

    

 

 

    

 

 

    

 

 

    

 

 

  
   $ (5,062 )   $ (803 )    $ (5,446 )   $ (427 )    $ (6,188 ) 
  

 

 

    

 

 

    

 

 

    

 

 

    

 

 

  

 

(1) Includes change in fair value of warrant liabilities and change in fair value of a certain conversion feature related to the 2012 Notes that was determined to be an embedded derivative requiring bifurcation and separate accounting. See Note 7 and Note 5, respectively.