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10. Employee Benefits (Tables)
9 Months Ended
Sep. 30, 2014
Employee Benefits  
Net periodic cost (benefit)
   Three Months Ended   Nine Months Ended 
   September 30,   September 30, 
   2014   2013   2014   2013 
   (In thousands)   (In thousands) 
Components of net periodic cost (benefit)                    
Service cost  $   $   $   $ 
Interest cost   220    210    660    630 
Expected return on assets   (432)   (335)   (1,296)   (1,005)
Amortization of transition (asset)/obligation                
Amortization of net (gain) / loss       117        351 
   Net periodic cost (benefit)  $(212)  $(8)  $(636)  $(24)