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Benefit Plans (Tables)
3 Months Ended
Mar. 31, 2014
Compensation And Retirement Disclosure [Abstract]  
Components of Net Periodic Benefit Cost

Components of the net periodic benefit cost of the plan for the three months ended March 31, 2014 and 2013 were as follows:

 

    

For the three months

ended March 31,

 
     2014     2013  
     (in thousands)  

Service cost

   $ 87      $ 118   

Interest cost

     67        70   

Expected return on plan assets

     (79     (76

Amortization of net loss

     —          27   
  

 

 

   

 

 

 

Net periodic benefit cost

   $ 75      $ 139