| **EMPLOYEE BENEFIT PLANS (Defined Benefit Plans Narrative) (Details) - USD ($) $ in Thousands** | 12 Months Ended |            |             |            |
|-------------------------------------------------------------------------------------------------|-----------------|------------|-------------|------------|
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| **Defined Benefit Plan Disclosure [Line Items]**                                                |            |       |        |       |
| Unfunded status of plan                                                                         | $ 67,400        | $ 70,900   |        |       |
| Unrecognized actuarial losses, net of tax                                                       | (139,641)       | (96,410)   | $ (254,368) | $ 54,334   |
| Estimated future contributions to the Plan in 2016                                              | 2,700           |       |        |       |
| Supplemental Employee Retirement Plan [Member]                                                  |            |       |        |       |
| **Defined Benefit Plan Disclosure [Line Items]**                                                |            |       |        |       |
| Benefit obligation                                                                              | 24,400          | 25,600     |        |       |
| Other Postretirement Benefit Plan [Member]                                                      |            |       |        |       |
| **Defined Benefit Plan Disclosure [Line Items]**                                                |            |       |        |       |
| Benefit obligation                                                                              | 8,500           | 9,200      |        |       |
| Pension Plan [Member]                                                                           |            |       |        |       |
| **Defined Benefit Plan Disclosure [Line Items]**                                                |            |       |        |       |
| Unfunded status of plan                                                                         | 34,500          | 36,100     |        |       |
| Benefit obligation                                                                              | 99,700          | 109,422    | 89,062      |       |
| Pension and post-retirement actuarial gain/(loss)                                               |            |       |        |       |
| **Defined Benefit Plan Disclosure [Line Items]**                                                |            |       |        |       |
| Unrecognized actuarial losses, net of tax                                                       | $ (27,033)      | $ (29,635) | $ (15,553)  | $ (26,716) |

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| - Definition
Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=36458714&loc=d3e637-108580Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=36458714&loc=d3e681-108580Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=36458714&loc=SL7669686-108580Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 31 -Article 5Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3
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| - Definition
1) For defined benefit pension plans, the benefit obligation is the projected benefit obligation, which is the actuarial present value as of a date of all benefits attributed by the pension benefit formula to employee service rendered prior to that date.  2) For other postretirement defined benefit plans, the benefit obligation is the accumulated postretirement benefit obligation, which is the actuarial present value of benefits attributed to employee service rendered to a particular date.
+ References
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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.
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| - Definition
The funded status is measured as the difference between the fair value of plan assets and the benefit obligation. Will normally be the same as the net Defined Benefit Plan, Amounts Recognized in Balance Sheet, Total.
+ References
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| - Definition
Amount of employer's best estimate of contributions expected to be paid to the plan during the next fiscal year beginning after the date of the latest statement of financial position.
+ References
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