XML 38 R109.htm IDEA: XBRL DOCUMENT v2.4.0.6
OTHER POSTRETIREMENT BENEFIT PLANS (Detail) (United States Postretirement Benefit Plans Of US Entity Defined Benefit [Member], USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
United States Postretirement Benefit Plans Of US Entity Defined Benefit [Member]
     
Defined Benefit Plan Disclosure [Line Items]      
Service Cost $ 448 $ 388 $ 578
Interest Cost 939 1,009 1,342
Prior Service Cost (629) (629) (105)
Recognized net actuarial loss (682) (901) (1,132)
Net periodic postretirement benefit cost $ 76 $ (133) $ 683