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Severance and Other Charges (Tables)
12 Months Ended
Dec. 31, 2014
Restructuring and Related Activities [Abstract]  
Summary of Activity Related to Severance Charges

A summary of the activity related to the severance charges, is as follows (in thousands):

 

Balance as of December 31, 2013

$ —    

Charges

  1,904  

Payments

  —    
  

 

 

 

Balance as of December 31, 2014

$ 1,904