XML 37 R75.htm IDEA: XBRL DOCUMENT v2.4.0.6
Amounts Recognized (Pre-tax) in Accumulated Other Comprehensive Loss (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2011
Dec. 31, 2010
PENSION BENEFIT PLANS
    
Defined Benefit Plan Disclosure [Line Items]    
Net loss $ 176,439 $ 141,614
Prior service cost (credit) 2,525 6,494
Net amount recognized 178,964 148,108
OTHER POSTRETIREMENT EMPLOYEE BENEFIT PLANS
    
Defined Benefit Plan Disclosure [Line Items]    
Net loss 21,258 26,693
Prior service cost (credit) (3,906) (5,701)
Net amount recognized $ 17,352 $ 20,992