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Pension Plans And Postretirement Benefits (Tables)
3 Months Ended
Mar. 31, 2016
Pension and Other Postretirement Benefit Expense [Abstract]  
Components Of Pension Expense
The following table summarizes the components of net periodic pension cost charged to operations for the three months ended March 31, 2016 and 2015 (in thousands):
 
 
For the Three Months Ended March 31,
 
 
2016
 
2015
Components of net periodic pension cost:
 
 
 
 
Interest cost
 
$
2,259

 
$
3,476

Expected return on plan assets (1)
 
(1,916
)
 
(2,690
)
Actuarial losses
 
578

 
1,912

Net periodic pension cost
 
$
921

 
$
2,698


(1) In connection with a lump sum buyout completed in the fourth quarter of 2015, pension assets decreased by approximately $110.7 million.