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Prepaid Expenses and Other Assets (Tables)
9 Months Ended
Sep. 29, 2012
Prepaid Expenses and Other Assets  
Schedule of prepaid expenses and other assets

   Prepaid expenses and other assets consist of the following (in thousands):

 
  September 29,
2012
  December 31,
2011
 

Loans and advances to employees and non-employee experts

  $ 12,779   $ 3,218  

Prepaid rent and deposits

    2,508     1,191  

Prepaid insurance

    2,309     1,515  

Subscriptions and licenses

    1,481     1,170  

Other

    1,455     1,130  
           

Total

  $ 20,532   $ 8,224