PENSION (Plan Assets) (Detail) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2016		Dec. 31, 2015
FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems
Defined Benefit Plan, Fair Value of Plan Assets, Beginning Balance		$ (692,074)
Defined Benefit Plan, Fair Value of Plan Assets, Ending Balance		714,608		$ 692,074
FairValueInputsLevel3Member
FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems
Defined Benefit Plan, Fair Value of Plan Assets, Beginning Balance		(10,475)		(8,940)
DefinedBenefitPlanActualReturnOnPlanAssetsStillHeld		183		164
DefinedBenefitPlanActualReturnOnPlanAssetsSoldDuringPeriod				2
DefinedBenefitPlanPurchasesSalesAndSettlements		1,966		1,505
DefinedBenefitPlanForeignCurrencyExchangeRateChangesPlanAssets		(246)		(136)
Defined Benefit Plan, Fair Value of Plan Assets, Ending Balance		12,378		10,475
Insurance Contracts [Member] | FairValueInputsLevel3Member
FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems
Defined Benefit Plan, Fair Value of Plan Assets, Beginning Balance		(9,720)		(8,169)
DefinedBenefitPlanActualReturnOnPlanAssetsStillHeld		148		127
DefinedBenefitPlanPurchasesSalesAndSettlements		1,095		1,554
DefinedBenefitPlanForeignCurrencyExchangeRateChangesPlanAssets		(203)		(130)
Defined Benefit Plan, Fair Value of Plan Assets, Ending Balance		10,760		9,720
Other Assets [Member]
FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems
Defined Benefit Plan, Fair Value of Plan Assets, Beginning Balance	[1]	(755)
Defined Benefit Plan, Fair Value of Plan Assets, Ending Balance	[1]	1,618		755
Other Assets [Member] | FairValueInputsLevel3Member
FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems
Defined Benefit Plan, Fair Value of Plan Assets, Beginning Balance		(755)	[1]	(771)
DefinedBenefitPlanActualReturnOnPlanAssetsStillHeld		35		37
DefinedBenefitPlanActualReturnOnPlanAssetsSoldDuringPeriod				2
DefinedBenefitPlanPurchasesSalesAndSettlements		871		(49)
DefinedBenefitPlanForeignCurrencyExchangeRateChangesPlanAssets		(43)		(6)
Defined Benefit Plan, Fair Value of Plan Assets, Ending Balance	[1]	$ 1,618		$ 755

[1] This category consists primarily of real estate investment trusts in Switzerland.