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EMPLOYEE BENEFIT PLANS Table 4 - Amounts Recorded as a Component of Accumulated Other Comprehensive (Loss) (Details) - USD ($) $ in Thousands | Dec. 31, 2017 | Dec. 31, 2016
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Pension Plans (The Pension Plan, Excess Pension Plan and SERP) [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Unrecognized actuarial loss (b) | $ (31,178) | $ (28,427)
Prior service credit (b) | 16,604 | 18,663
Deferred tax asset (liability) | 219 | 57
Accumulated other comprehensive income (loss), net of tax | (14,355) | (9,707)
Other Postretirement Benefits Plan [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Unrecognized actuarial loss (b) | (4,154) | (3,755)
Prior service credit (b) | 9,464 | 10,609
Deferred tax asset (liability) | 25 | 3
Accumulated other comprehensive income (loss), net of tax | $ 5,335 | $ 6,857

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