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, 2011	Dec. 31, 2010	Dec. 31, 2009
United States Postretirement Benefit Plans Of US Entity Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Service Cost	$ 388	$ 578	$ 666
Interest Cost	1,009	1,342	1,601
Prior Service Cost	(629)	(105)	0
Defined Benefit Plan, Amortization of Gains (Losses)	(901)	(1,132)	(853)
Net periodic postretirement benefit cost	$ (133)	$ 683	$ 1,414