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Accrued Expenses and Other Current Liabilities (Tables)
 9 Months Ended
Sep. 30, 2012
Accrued expenses and other current liabilities [Abstract]  
Accrued expenses and other current liabilities
                 
    September 30,
2012		     December 31,
2011		  

Salary and related expenses

   $ 7,760     $ 8,997  

Research and clinical trial costs

     7,013       2,383  

Accrued interest

     4,347       8,262  

Construction in progress

     2,540       —    

Accrued litigation settlement liability*

     25,448       —    

Other

     1,490       1,094  
   

 

 

    

 

 

  

Accrued expenses and other current liabilities

   $ 48,598     $ 20,736