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Pension (Tables)
6 Months Ended
Jun. 30, 2011
Pension  
Employee Benefit Plans
                               
    For the     For the  
    Three Months     Six Months  
    Ended June 30     Ended June 30  
 
(In thousands)   2011     2010     2011     2010  
 
Service cost — benefits earned during the period
  $ 88     $ 183     $ 176     $ 366  
Interest cost on projected benefit obligation
    1,362       1,367       2,724       2,734  
Expected return on plan assets
    (1,675 )     (1,640 )     (3,350 )     (3,280 )
Amortization of unrecognized net loss
    540       567       1,080       1,134  
 
Net periodic pension cost
  $ 315     $ 477     $ 630     $ 954