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Acquisition and Goodwill (Tables)
 6 Months Ended
Jun. 30, 2015
Business Combinations [Abstract]  
Summary of Goodwill Activity

The following table summarizes the goodwill activity for the six months ended June 30, 2015:

 

Balance at January 1, 2015

    $ 1,676   

Goodwill acquired during the period

      —    
  

 

 

  

Balance at June 30, 2015

    $ 1,676