Restructuring Charges (Tables)
 12 Months Ended
Dec. 31, 2015
Restructuring and Related Activities [Abstract]  
Components of Restructuring Charges

The components of the restructuring charges were as follows:

 

     Year ended  
     December 31, 2014  
     (in thousands)  

Severance

    $ 499   

Other

      27   
  

 

 

  

Total

    $ 526