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RETIREMENT ANNUITY AND GUARANTEED CONTINUOUS EMPLOYMENT PLANS (Textual) (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2015 USD ($) hours | Dec. 31, 2014 USD ($) | Dec. 31, 2013 USD ($)
After-tax amounts included in Accumulated other comprehensive loss |  |  |
Unrecognized actuarial net loss | $ 101,288 |  |
Unrecognized prior service credits | (1,548) |  |
Unrecognized transition obligations | 36 |  |
Pre-tax amounts expected to be recognized as components of net periodic benefit cost during next fiscal year |  |  |
Unrecognized actuarial net loss | 10,367 |  |
Unrecognized prior service credits | (398) |  |
Unrecognized transition obligations | 3 |  |
Total accumulated benefit obligation for all plans | 523,728 | $ 1,003,296 |
Contributions to Plans |  |  |
Expected contribution to the plans during the next fiscal year | 20,000 |  |
Supplemental Executive Retirement Plan |  |  |
Total net pension costs | 162,815 | 12,395 | $ 29,908
Projected benefit obligation | 558,169 | 1,045,471 | 941,442
Multi-Employer Plans |  |  |
Annual pension costs of multi-employer plans for operations in Europe | $ 830 | 1,068 | 1,048
Other Benefits |  |  |
Minimum percentage of every standard work week for which, the Company will provide work to employees in Cleveland, Ohio, area operations, covered under the guaranteed continuous employment plan (as a percent) | 75.00% |  |
Hours in a standard work week under Guaranteed Continuous Employment Plan (hours) | hours | 40 |  |
Minimum notice period for the termination of Guaranteed Continuous Employment Plan (in months) | 6 months |  |
Supplemental executive retirement plan (SERP) |  |  |
Supplemental Executive Retirement Plan |  |  |
Total net pension costs | $ 1,703 | 3,012 | 2,329
Projected benefit obligation | $ 14,643 | $ 17,953 | $ 22,877
Equity Securities |  |  |
Target allocation for pension plan assets |  |  |
Target plan asset allocations range minimum | 45.00% |  |
Target plan asset allocations range maximum | 55.00% |  |
Debt Securities |  |  |
Target allocation for pension plan assets |  |  |
Target plan asset allocations range minimum | 45.00% |  |
Target plan asset allocations range maximum | 55.00% |  |

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- Definition Represents the minimum notice period prior to the end of calendar year for termination of Guaranteed Continuous Employment Plan by the entity at the end of the year. + References No definition available. + Details
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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 Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Projected Benefit Obligation -URI http://asc.fasb.org/extlink&oid=6522206 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Accumulated Postretirement Benefit Obligation -URI http://asc.fasb.org/extlink&oid=6503904 + Details
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