XML 31 R11.htm IDEA: XBRL DOCUMENT v2.3.0.15
Employee Benefit Plans
9 Months Ended
Sep. 30, 2011
Employee Benefit Plans [Abstract] 
Employee Benefit Plans
Note F — Employee Benefit Plans
Net periodic benefit cost included the following components for the three months ended September 30:
                                 
                    Other Post-retirement  
    Pension Benefits     Benefits  
    2011     2010     2011     2010  
    (in thousands)  
 
                               
Service cost
  $ 3,440     $ 1,711     $     $  
Interest cost
    24,807       23,055       123       143  
Expected return on plan assets
    (30,918 )     (28,564 )            
Amortization of prior service credit
    (1,720 )     (1,745 )     (168 )     (264 )
Amortization of actuarial loss
    14,417       7,623       415       423  
 
                       
Net periodic benefit cost
  $ 10,026     $ 2,080     $ 370     $ 302  
 
                       
Net periodic benefit cost included the following components for the nine months ended September 30:
                                 
                    Other Post-retirement  
    Pension Benefits     Benefits  
    2011     2010     2011     2010  
    (in thousands)  
 
                               
Service cost
  $ 9,822     $ 9,216     $     $  
Interest cost
    72,948       71,598       356       455  
Expected return on plan assets
    (93,044 )     (85,582 )            
Amortization of prior service credit
    (5,223 )     (5,228 )     (698 )     (794 )
Amortization of actuarial loss
    39,766       26,444       1,282       1,319  
 
                       
Net periodic benefit cost
  $ 24,269     $ 16,448     $ 940     $ 980  
 
                       
Pension benefits also include amounts related to a supplemental retirement plan. In August 2011, the Company contributed $43.0 million to the pension plan.