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Pension Plans and Other Postretirement Benefits
6 Months Ended
Jun. 30, 2011
Pension Plans and Other Postretirement Benefits [Abstract]  
Pension Plans and Other Postretirement Benefits
 
NOTE H — Pension Plans and Other Postretirement Benefits
 
The components of net periodic benefit cost recognized during interim periods was as follows:
 
                                                                 
    Pension Benefits     Postretirement Benefits  
    Three Months
    Six Months
    Three Months
    Six Months
 
    Ended June 30,     Ended June 30,     Ended June 30,     Ended June 30,  
    2011     2010     2011     2010     2011     2010     2011     2010  
 
Service costs
  $ 604     $ 81     $ 713     $ 162     $ 12     $ 9     $ 24     $ 18  
Interest costs
    596       643       1,192       1,286       228       248       456       496  
Expected return on plan assets
    (2,239 )     (1,984 )     (4,468 )     (3,968 )     -0-       -0-       -0-       -0-  
Transition obligation
    (10 )     (10 )     (20 )     (20 )     -0-       -0-       -0-       -0-  
Amortization of prior service cost
    11       15       22       30       (24 )     (24 )     (48 )     (48 )
Recognized net actuarial loss
    -0-       82       -0-       164       129       107       258       214  
                                                                 
Benefit (income) costs
  $ (1,038 )   $ (1,173 )   $ (2,561 )   $ (2,346 )   $ 345     $ 340     $ 690     $ 680