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PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS (Nonunion) (Details) $ in Thousands | 3 Months Ended
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Mar. 31, 2018 USD ($) | Mar. 31, 2017 USD ($) person
Pension and other postretirement benefit plans |  |
Pension settlement expense, pre-tax | $ 654 | $ 1,957
Pension settlement expense, net of tax | 486 | 1,196
Nonunion Defined Benefit Pension Plan |  |
Pension and other postretirement benefit plans |  |
Pension settlement expense, pre-tax | 654 | 1,957
Pension settlement expense, net of tax | 500 | 1,200
Lump-sum distributions | $ 4,800 | 4,800
Premium paid to purchase nonparticipating annuity contract |  | $ 7,600
Number of plan participants for which vested pension benefits were settled | person |  | 50

X
- Definition The amount of lump sum benefit distributions paid. + References No definition available. + Details
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- Definition Amount of premium paid for nonparticipating annuity contract to settle vested benefit obligations of participants and beneficiaries receiving monthly benefits. + References No definition available. + Details
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- Definition Net of tax amount of the gain (loss) adjustment to other comprehensive income (loss) resulting from the settlement of the entity's defined benefit pension and other postretirement plans. + References No definition available. + Details
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- Definition Number of participants and beneficiaries for which vested benefit obligations were settled with nonparticipating annuity contract. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Amount of gain (loss) recognized in net periodic benefit (cost) credit from irrevocable action relieving primary responsibility for benefit obligation and eliminating risk related to obligation and assets used to effect settlement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h)(7) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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- Details
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