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Acquisition and Goodwill (Tables)
 9 Months Ended
Sep. 30, 2014
Business Combinations [Abstract]  
Summary of Goodwill Activity

The following table summarizes the goodwill activity for the nine months ended September 30, 2014:

 

Balance at January 1, 2014

    $ —    

Goodwill acquired during the period

      1,676   
  

 

 

  

Balance at September 30, 2014

    $ 1,676