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Commitments and Contingencies (Tables)
 12 Months Ended
Dec. 31, 2013
Commitments And Contingencies Disclosure [Abstract]  
Summary of Minimum Rental Commitments under Operating Leases

Minimum rental commitments as of December 31, 2013 under such operating leases were as follows (in thousands):

 

                                                                                                         
                                                                                                                                                 

2014

      1,477   

2015

      1,699   

2016

      2,840   

2017

      2,764   

2018 and thereafter

      18,471   
  

 

 

  
   $ 27,251