PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Pension Plans Defined Benefit [Member]
DefinedBenefitPlanChangeInBenefitObligationRollForward
Defined Benefit Plan, Benefit Obligation, Beginning Balance	$ 797,360	$ 674,192
Service cost	26,873	25,262	$ 40,170
Interest cost	30,050	30,403	27,777
DefinedBenefitPlanContributionsByPlanParticipants	1,825	1,734
DefinedBenefitPlanPlanAmendments	(2,951)	178
DefinedBenefitPlanActuarialGainLoss	(10,803)	114,763
DefinedBenefitPlanBenefitsPaid	(60,662)	(40,765)
Defined Benefit Plan, Actual Expense	(1,787)	(1,299)
DefinedBenefitPlanForeignCurrencyExchangeRateChangesBenefitObligation	(5,195)	(7,108)
Defined Benefit Plan, Benefit Obligation, Ending Balance	774,710	797,360	674,192
Other Postretirement Benefit Plans, Defined Benefit [Member]
DefinedBenefitPlanChangeInBenefitObligationRollForward
Defined Benefit Plan, Benefit Obligation, Beginning Balance	23,250	20,416
Service cost	286	246	373
Interest cost	842	877	839
DefinedBenefitPlanContributionsByPlanParticipants	345	364
DefinedBenefitPlanPlanAmendments	0	0
DefinedBenefitPlanActuarialGainLoss	(1,133)	3,276
DefinedBenefitPlanBenefitsPaid	(1,610)	(1,929)
Defined Benefit Plan, Actual Expense	0	0
DefinedBenefitPlanForeignCurrencyExchangeRateChangesBenefitObligation	0	0
Defined Benefit Plan, Benefit Obligation, Ending Balance	$ 21,980	$ 23,250	$ 20,416