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PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS (Fair Value) (Detail) - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Defined Benefit Plan Fair Value Disclosure [Line Items] |  |
DefinedBenefitPlanFairValueOfPlanAssets | $ 956,884 | $ 963,364
Cash And Cash Equivalents |  |
Defined Benefit Plan Fair Value Disclosure [Line Items] |  |
DefinedBenefitPlanFairValueOfPlanAssets | 22,742 | 16,105
Total equity |  |
Defined Benefit Plan Fair Value Disclosure [Line Items] |  |
DefinedBenefitPlanFairValueOfPlanAssets | 275,109 | 358,082
DebtSecuritiesMember |  |
Defined Benefit Plan Fair Value Disclosure [Line Items] |  |
DefinedBenefitPlanFairValueOfPlanAssets | 650,832 | 578,797
Other Plan Assets |  |
Defined Benefit Plan Fair Value Disclosure [Line Items] |  |
DefinedBenefitPlanFairValueOfPlanAssets | 8,201 | 10,380
Quoted Prices in Active Markets for Identical Assets (Level 1) |  |
Defined Benefit Plan Fair Value Disclosure [Line Items] |  |
DefinedBenefitPlanFairValueOfPlanAssets | 291,821 | 370,668
Quoted Prices in Active Markets for Identical Assets (Level 1) | Cash And Cash Equivalents |  |
Defined Benefit Plan Fair Value Disclosure [Line Items] |  |
DefinedBenefitPlanFairValueOfPlanAssets | 22,742 | 16,105
Quoted Prices in Active Markets for Identical Assets (Level 1) | Total equity |  |
Defined Benefit Plan Fair Value Disclosure [Line Items] |  |
DefinedBenefitPlanFairValueOfPlanAssets | 258,246 | 341,575
Quoted Prices in Active Markets for Identical Assets (Level 1) | DebtSecuritiesMember |  |
Defined Benefit Plan Fair Value Disclosure [Line Items] |  |
DefinedBenefitPlanFairValueOfPlanAssets | 8,245 | 9,316
Quoted Prices in Active Markets for Identical Assets (Level 1) | Other Plan Assets |  |
Defined Benefit Plan Fair Value Disclosure [Line Items] |  |
DefinedBenefitPlanFairValueOfPlanAssets | 2,588 | 3,672
Significant Observable Inputs (Level 2) |  |
Defined Benefit Plan Fair Value Disclosure [Line Items] |  |
DefinedBenefitPlanFairValueOfPlanAssets | 659,450 | 585,988
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 | 16,863 | 16,507
Significant Observable Inputs (Level 2) | DebtSecuritiesMember |  |
Defined Benefit Plan Fair Value Disclosure [Line Items] |  |
DefinedBenefitPlanFairValueOfPlanAssets | 642,587 | 569,481
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 | 5,613 | 6,708
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 | $ 5,613 | $ 6,708

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