XML 60 R63.htm IDEA: XBRL DOCUMENT v2.4.0.8
Employee Benefit Plans (Pension And Other Postretirement Benefit Costs) (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2013
Jun. 30, 2012
Pension Plans, Defined Benefit [Member]
       
Defined Benefit Plan Disclosure [Line Items]        
Service cost $ 6,790 $ 7,310 $ 14,490 $ 14,906
Interest cost 3,876 4,092 7,802 8,072
Curtailments    324    324
Expected return on plan assets (6,036) (5,477) (11,842) (11,015)
Amortization of prior service cost (credit) 57 (37) (101) (73)
Amortization of other actuarial (gains) losses 4,264 4,200 8,814 7,771
Total net benefit 8,951 10,412 19,163 19,985
Other Postretirement Benefit Plans, Defined Benefit [Member]
       
Defined Benefit Plan Disclosure [Line Items]        
Service cost 538 539 1,094 1,088
Interest cost 415 520 846 1,011
Curtailments    (1,837)    (1,837)
Amortization of prior service cost (credit) (2,730) (2,876) (5,480) (5,871)
Amortization of other actuarial (gains) losses (75) (171) 2 (261)
Total net benefit $ (1,852) $ (3,825) $ (3,538) $ (5,870)