EMPLOYEE BENEFIT PLANS (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
CHANGE IN ACCUMULATED BENEFIT OBLIGATION
Accumulated Benefit obligation at beginning of year	$ 185,947	$ 210,815
Service cost	74us-gaap_DefinedBenefitPlanServiceCost	112us-gaap_DefinedBenefitPlanServiceCost	100us-gaap_DefinedBenefitPlanServiceCost
Interest cost	9,427	8,551
Actuarial (gain) loss	42,056	(24,724)
Benefits paid	(15,783)us-gaap_DefinedBenefitPlanBenefitsPaid	(8,807)us-gaap_DefinedBenefitPlanBenefitsPaid
Accumulated Benefit obligation at end of year	221,721	185,947	210,815
Non-cash (increases) decreases in the minimum pension liability	$ (41,700)	$ 45,700	$ (15,400)

Defined Benefit Plan, Change in Benefit Obligation Interest Cost

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- Definition

Increase (Decrease) in Minimum Pension Liability

+ References

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For defined benefit pension plans, the actuarial present value of benefits (whether vested or nonvested) attributed by the pension benefit formula to employee service rendered before a specified date and based on employee service and compensation (if applicable) before that date. The accumulated benefit obligation differs from the projected benefit obligation in that it includes no assumption about future compensation levels. For plans with flat-benefit or nonpay-related pension benefit formulas, the accumulated benefit obligation and the projected benefit obligation are the same.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Accumulated Benefit Obligation

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- Definition

Amount of gain (loss) related to change in benefit obligation resulting from changes in actuarial assumptions, for example, but not limited to, interest, mortality, employee turnover, salary, and temporary deviation from the substantive plan.

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-Publisher FASB

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The amount of payments made for which participants are entitled under a pension plan, including pension benefits, death benefits, and benefits due on termination of employment. Also includes payments made under a postretirement benefit plan, including prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services. This item represents a periodic decrease to the plan obligations and a decrease to plan assets.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Glossary Postretirement Benefits

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- Definition

The actuarial present value of benefits attributed by the pension benefit formula to services rendered by employees during the period. The portion of the expected postretirement benefit obligation attributed to employee service during the period. The service cost component is a portion of the benefit obligation and is unaffected by the funded status of the plan.

+ References

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-Glossary Service Cost (Component of Net Periodic Pension Cost)

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