XML 22 R70.htm IDEA: XBRL DOCUMENT v2.4.0.8
Pre-tax Components of Net Periodic Cost (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Pension Benefit Plans
      
Defined Benefit Plan Disclosure [Line Items]      
Service cost $ 1,738 $ 2,485 $ 7,725
Interest cost 13,375 14,693 15,092
Expected return on plan assets (18,352) (19,685) (19,532)
Amortization of prior service cost (credit) 337 634 1,193
Amortization of actuarial loss 14,840 12,085 8,382
Curtailments 769 477 2,776
Net periodic cost 12,707 10,689 15,636
Other Postretirement Employee Benefit Plans
      
Defined Benefit Plan Disclosure [Line Items]      
Service cost 552 693 702
Interest cost 4,730 5,815 6,857
Expected return on plan assets 0 0 0
Amortization of prior service cost (credit) (502) (2,680) (1,795)
Amortization of actuarial loss 0 0 0
Curtailments 0 0 0
Net periodic cost $ 4,780 $ 3,828 $ 5,764