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PENSION (Fair Value) (Detail) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Defined Benefit Plan Fair Value Disclosure [Line Items] |  |
DefinedBenefitPlanFairValueOfPlanAssets | $ 963,364 | $ 912,702
Cash And Cash Equivalents [Member] |  |
Defined Benefit Plan Fair Value Disclosure [Line Items] |  |
DefinedBenefitPlanFairValueOfPlanAssets | 16,105 | 33,272
EquitySecuritiesMember |  |
Defined Benefit Plan Fair Value Disclosure [Line Items] |  |
DefinedBenefitPlanFairValueOfPlanAssets | 358,082 | 388,343
DebtSecuritiesMember |  |
Defined Benefit Plan Fair Value Disclosure [Line Items] |  |
DefinedBenefitPlanFairValueOfPlanAssets | 578,797 | 481,169
Other Plan Assets |  |
Defined Benefit Plan Fair Value Disclosure [Line Items] |  |
DefinedBenefitPlanFairValueOfPlanAssets | 10,380 | 9,918
FairValueInputsLevel1Member |  |
Defined Benefit Plan Fair Value Disclosure [Line Items] |  |
DefinedBenefitPlanFairValueOfPlanAssets | 370,668 | 748,888
FairValueInputsLevel1Member | Cash And Cash Equivalents [Member] |  |
Defined Benefit Plan Fair Value Disclosure [Line Items] |  |
DefinedBenefitPlanFairValueOfPlanAssets | 16,105 | 730
FairValueInputsLevel1Member | EquitySecuritiesMember |  |
Defined Benefit Plan Fair Value Disclosure [Line Items] |  |
DefinedBenefitPlanFairValueOfPlanAssets | 341,575 | 370,028
FairValueInputsLevel1Member | DebtSecuritiesMember |  |
Defined Benefit Plan Fair Value Disclosure [Line Items] |  |
DefinedBenefitPlanFairValueOfPlanAssets | 9,316 | 373,963
FairValueInputsLevel1Member | Other Plan Assets |  |
Defined Benefit Plan Fair Value Disclosure [Line Items] |  |
DefinedBenefitPlanFairValueOfPlanAssets | 3,672 | 4,167
FairValueInputsLevel2Member |  |
Defined Benefit Plan Fair Value Disclosure [Line Items] |  |
DefinedBenefitPlanFairValueOfPlanAssets | 585,988 | 158,063
FairValueInputsLevel2Member | Cash And Cash Equivalents [Member] |  |
Defined Benefit Plan Fair Value Disclosure [Line Items] |  |
DefinedBenefitPlanFairValueOfPlanAssets | 0 | 32,542
FairValueInputsLevel2Member | EquitySecuritiesMember |  |
Defined Benefit Plan Fair Value Disclosure [Line Items] |  |
DefinedBenefitPlanFairValueOfPlanAssets | 16,507 | 18,315
FairValueInputsLevel2Member | DebtSecuritiesMember |  |
Defined Benefit Plan Fair Value Disclosure [Line Items] |  |
DefinedBenefitPlanFairValueOfPlanAssets | 569,481 | 107,206
FairValueInputsLevel2Member | Other Plan Assets |  |
Defined Benefit Plan Fair Value Disclosure [Line Items] |  |
DefinedBenefitPlanFairValueOfPlanAssets | 0 | 0
FairValueInputsLevel3Member |  |
Defined Benefit Plan Fair Value Disclosure [Line Items] |  |
DefinedBenefitPlanFairValueOfPlanAssets | 6,708 | 5,751
FairValueInputsLevel3Member | Cash And Cash Equivalents [Member] |  |
Defined Benefit Plan Fair Value Disclosure [Line Items] |  |
DefinedBenefitPlanFairValueOfPlanAssets | 0 | 0
FairValueInputsLevel3Member | EquitySecuritiesMember |  |
Defined Benefit Plan Fair Value Disclosure [Line Items] |  |
DefinedBenefitPlanFairValueOfPlanAssets | 0 | 0
FairValueInputsLevel3Member | DebtSecuritiesMember |  |
Defined Benefit Plan Fair Value Disclosure [Line Items] |  |
DefinedBenefitPlanFairValueOfPlanAssets | 0 | 0
FairValueInputsLevel3Member | Other Plan Assets |  |
Defined Benefit Plan Fair Value Disclosure [Line Items] |  |
DefinedBenefitPlanFairValueOfPlanAssets | $ 6,708 | $ 5,751

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