PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS (Fair Value) (Detail) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Defined Benefit Plan Fair Value Disclosure [Line Items]
DefinedBenefitPlanFairValueOfPlanAssets	$ 1,014,731	$ 956,884
Cash And Cash Equivalents
Defined Benefit Plan Fair Value Disclosure [Line Items]
DefinedBenefitPlanFairValueOfPlanAssets	38,957	22,742
Total equity
Defined Benefit Plan Fair Value Disclosure [Line Items]
DefinedBenefitPlanFairValueOfPlanAssets	208,127	275,109
DebtSecuritiesMember
Defined Benefit Plan Fair Value Disclosure [Line Items]
DefinedBenefitPlanFairValueOfPlanAssets	757,058	650,832
Other Plan Assets
Defined Benefit Plan Fair Value Disclosure [Line Items]
DefinedBenefitPlanFairValueOfPlanAssets	10,589	8,201
Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Fair Value Disclosure [Line Items]
DefinedBenefitPlanFairValueOfPlanAssets	242,759	291,821
Quoted Prices in Active Markets for Identical Assets (Level 1) | Cash And Cash Equivalents
Defined Benefit Plan Fair Value Disclosure [Line Items]
DefinedBenefitPlanFairValueOfPlanAssets	38,957	22,742
Quoted Prices in Active Markets for Identical Assets (Level 1) | Total equity
Defined Benefit Plan Fair Value Disclosure [Line Items]
DefinedBenefitPlanFairValueOfPlanAssets	190,146	258,246
Quoted Prices in Active Markets for Identical Assets (Level 1) | DebtSecuritiesMember
Defined Benefit Plan Fair Value Disclosure [Line Items]
DefinedBenefitPlanFairValueOfPlanAssets	11,068	8,245
Quoted Prices in Active Markets for Identical Assets (Level 1) | Other Plan Assets
Defined Benefit Plan Fair Value Disclosure [Line Items]
DefinedBenefitPlanFairValueOfPlanAssets	2,588	2,588
Significant Observable Inputs (Level 2)
Defined Benefit Plan Fair Value Disclosure [Line Items]
DefinedBenefitPlanFairValueOfPlanAssets	763,971	659,450
Significant Observable Inputs (Level 2) | Cash And Cash Equivalents
Defined Benefit Plan Fair Value Disclosure [Line Items]
DefinedBenefitPlanFairValueOfPlanAssets	0	0
Significant Observable Inputs (Level 2) | Total equity
Defined Benefit Plan Fair Value Disclosure [Line Items]
DefinedBenefitPlanFairValueOfPlanAssets	17,981	16,863
Significant Observable Inputs (Level 2) | DebtSecuritiesMember
Defined Benefit Plan Fair Value Disclosure [Line Items]
DefinedBenefitPlanFairValueOfPlanAssets	745,990	642,587
Significant Observable Inputs (Level 2) | Other Plan Assets
Defined Benefit Plan Fair Value Disclosure [Line Items]
DefinedBenefitPlanFairValueOfPlanAssets	0	0
Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Fair Value Disclosure [Line Items]
DefinedBenefitPlanFairValueOfPlanAssets	8,001	5,613
Significant Unobservable Inputs (Level 3) | Cash And Cash Equivalents
Defined Benefit Plan Fair Value Disclosure [Line Items]
DefinedBenefitPlanFairValueOfPlanAssets	0	0
Significant Unobservable Inputs (Level 3) | Total equity
Defined Benefit Plan Fair Value Disclosure [Line Items]
DefinedBenefitPlanFairValueOfPlanAssets	0	0
Significant Unobservable Inputs (Level 3) | DebtSecuritiesMember
Defined Benefit Plan Fair Value Disclosure [Line Items]
DefinedBenefitPlanFairValueOfPlanAssets	0	0
Significant Unobservable Inputs (Level 3) | Other Plan Assets
Defined Benefit Plan Fair Value Disclosure [Line Items]
DefinedBenefitPlanFairValueOfPlanAssets	$ 8,001	$ 5,613