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Pension Plans (Tables)
3 Months Ended
Mar. 31, 2015
Compensation and Retirement Disclosure [Abstract]  
Components of Net Periodic Benefit Cost

Net periodic benefit cost for this plan included the following components:

 

     Three Months Ended March 31  
     2015      2014  

Service cost

   $ 27       $ 23   

Interest cost

     358         340   

Expected return on plan assets

     (465      (449

Recognized net actuarial loss

     139         3   
  

 

 

    

 

 

 

Net periodic benefit cost (income)

$ 59    $ (83