PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
DefinedBenefitPlanChangeInBenefitObligationRollForward
Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Settlement	$ (2,228)	$ (4,151)
Pension Plan [Member]
DefinedBenefitPlanChangeInBenefitObligationRollForward
Defined Benefit Plan, Benefit Obligation, Beginning Balance	868,887	798,605
Service cost	27,116	25,093	$ 25,100
Interest cost	26,149	25,895	30,495
Defined Benefit Plan, Expected Return (Loss) on Plan Assets	(58,641)	(53,552)	(54,101)
Prior service cost	(252)	(100)	(46)
Defined Benefit Plan, Amortization of Gain (Loss)	16,867	12,925	12,029
Curtailment charge	337	327	0
DefinedBenefitPlanContributionsByPlanParticipants	1,402	1,655
DefinedBenefitPlanActuarialGainLoss	58,913	(56,727)
DefinedBenefitPlanBenefitsPaid	(41,962)	(41,233)
Defined Benefit Plan, Actual Expense	(1,371)	(1,301)
DefinedBenefitPlanForeignCurrencyExchangeRateChangesBenefitObligation	(4,186)	7,597
Defined Benefit Plan, Benefit Obligation, Ending Balance	814,894	868,887	798,605
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)	11,576	10,588	13,477
Other Postretirement Benefits Plan [Member]
DefinedBenefitPlanChangeInBenefitObligationRollForward
Defined Benefit Plan, Benefit Obligation, Beginning Balance	25,035	24,436
Service cost	490	435	338
Interest cost	719	762	996
Prior service cost	(656)	(656)	(657)
Defined Benefit Plan, Amortization of Gain (Loss)	(131)	(223)	(296)
DefinedBenefitPlanContributionsByPlanParticipants	319	253
DefinedBenefitPlanActuarialGainLoss	1,982	(2,056)
DefinedBenefitPlanBenefitsPaid	(2,521)	(2,907)
Defined Benefit Plan, Benefit Obligation, Ending Balance	22,060	25,035	24,436
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)	$ 422	$ 318	$ 381