EMPLOYEE BENEFIT PLANS (Schedule of Changes in Benefit Obligations and Plan Assets and Funded Status) (Details) (Pension Plans, Defined Benefit [Member], USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Pension Plans, Defined Benefit [Member]
CHANGE IN BENEFIT OBLIGATION:
Benefit obligation at beginning of year	$ 30,249	$ 29,844
Service cost	1,601	1,703	1,593
Interest cost	1,368	1,189	1,234
Actuarial (gain) loss	3,406	(757)
Curtailments	328
Special/contractual termination benefits	376
Benefits paid	(3,627)	(1,730)
Benefit obligation at end of year	33,701	30,249	29,844
CHANGE IN PLAN ASSETS:
Fair value of plan assets at beginning of year	26,288	21,368
Actual return on plan assets	2,056	3,850
Employer contributions	2,650	2,800
Benefits paid	(3,627)	(1,730)
Fair value of plan assets at end of year	27,367	26,288	21,368
Funded status of the plan-under funded	$ (6,334)	$ (3,961)

EMPLOYEE BENEFIT PLANS (Schedule of Changes in Benefit Obligations and Plan Assets and Funded Status) (Details) (Pension Plans, Defined Benefit [Member], USD $)
In Thousands, unless otherwise specified

12 Months Ended

Dec. 31, 2014

Dec. 31, 2013

Dec. 31, 2012

Pension Plans, Defined Benefit [Member]

CHANGE IN BENEFIT OBLIGATION:

Benefit obligation at beginning of year

$ 30,249us-gaap_DefinedBenefitPlanBenefitObligation
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$ 29,844us-gaap_DefinedBenefitPlanBenefitObligation
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= us-gaap_PensionPlansDefinedBenefitMember

Service cost

1,601us-gaap_DefinedBenefitPlanServiceCost
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= us-gaap_PensionPlansDefinedBenefitMember

1,703us-gaap_DefinedBenefitPlanServiceCost
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= us-gaap_PensionPlansDefinedBenefitMember

1,593us-gaap_DefinedBenefitPlanServiceCost
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= us-gaap_PensionPlansDefinedBenefitMember

Interest cost

1,368us-gaap_DefinedBenefitPlanInterestCost
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= us-gaap_PensionPlansDefinedBenefitMember

1,189us-gaap_DefinedBenefitPlanInterestCost
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= us-gaap_PensionPlansDefinedBenefitMember

1,234us-gaap_DefinedBenefitPlanInterestCost
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Actuarial (gain) loss

3,406us-gaap_DefinedBenefitPlanActuarialGainLoss
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(757)us-gaap_DefinedBenefitPlanActuarialGainLoss
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= us-gaap_PensionPlansDefinedBenefitMember

Curtailments

328us-gaap_DefinedBenefitPlanCurtailments
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Special/contractual termination benefits

376us-gaap_DefinedBenefitPlanSpecialTerminationBenefits
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Benefits paid

(3,627)us-gaap_DefinedBenefitPlanBenefitsPaid
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(1,730)us-gaap_DefinedBenefitPlanBenefitsPaid
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= us-gaap_PensionPlansDefinedBenefitMember

Benefit obligation at end of year

33,701us-gaap_DefinedBenefitPlanBenefitObligation
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30,249us-gaap_DefinedBenefitPlanBenefitObligation
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29,844us-gaap_DefinedBenefitPlanBenefitObligation
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= us-gaap_PensionPlansDefinedBenefitMember

CHANGE IN PLAN ASSETS:

Fair value of plan assets at beginning of year

26,288us-gaap_DefinedBenefitPlanFairValueOfPlanAssets
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21,368us-gaap_DefinedBenefitPlanFairValueOfPlanAssets
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Actual return on plan assets

2,056us-gaap_DefinedBenefitPlanActualReturnOnPlanAssets
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3,850us-gaap_DefinedBenefitPlanActualReturnOnPlanAssets
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Employer contributions

2,650us-gaap_DefinedBenefitPlanContributionsByEmployer
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2,800us-gaap_DefinedBenefitPlanContributionsByEmployer
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Benefits paid

(3,627)us-gaap_DefinedBenefitPlanBenefitsPaid
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= us-gaap_PensionPlansDefinedBenefitMember

(1,730)us-gaap_DefinedBenefitPlanBenefitsPaid
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= us-gaap_PensionPlansDefinedBenefitMember

Fair value of plan assets at end of year

27,367us-gaap_DefinedBenefitPlanFairValueOfPlanAssets
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= us-gaap_PensionPlansDefinedBenefitMember

26,288us-gaap_DefinedBenefitPlanFairValueOfPlanAssets
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= us-gaap_PensionPlansDefinedBenefitMember

21,368us-gaap_DefinedBenefitPlanFairValueOfPlanAssets
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= us-gaap_PensionPlansDefinedBenefitMember

Funded status of the plan-under funded

$ (6,334)us-gaap_DefinedBenefitPlanFundedStatusOfPlan
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$ (3,961)us-gaap_DefinedBenefitPlanFundedStatusOfPlan
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= us-gaap_PensionPlansDefinedBenefitMember

- Definition

The difference between fair value of plan assets at the end of the period and the fair value at the beginning of the period, adjusted for contributions and payments of benefits during the period, and after adjusting for taxes and other expenses, as applicable.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Actual Return on Plan Assets (Component of Net Periodic Postretirement Benefit Cost)

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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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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.

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-Subparagraph (a)

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-Glossary Projected Benefit Obligation

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-Name Accounting Standards Codification

-Glossary Accumulated Postretirement Benefit Obligation

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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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-Glossary Postretirement Benefits

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- Definition

The increase in the fair value of plan assets from contributions made by the employer.

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- Definition

The amount of decrease that is related to an event that significantly reduces the expected years of future service of present employees or eliminates for a significant number of employees the accrual of defined benefits for some or all of their future services.

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Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those non-benefit obligations may be considered as reductions of plan assets.

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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.

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The increase in a defined benefit pension plan's projected benefit obligation or a defined benefit postretirement plan's accumulated postretirement benefit obligation due to the passage of time.

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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.

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The amount of increase related to special termination benefits offered to and accepted by employees in connection with their termination of employment that are only offered for a short period of time. A situation involving termination benefits may also involve a curtailment.

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