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EMPLOYEE BENEFIT PLANS (Details3) (USD $)
In Thousands, unless otherwise specified |
Dec. 31, 2012
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Dec. 31, 2011
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Dec. 31, 2010
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Dec. 31, 2009
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|---|---|---|---|---|
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Fair Value of Plan Assets | $ 94,164 | $ 87,844 | ||
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Defined benefit pension plan
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| Defined Benefit Plan Disclosure [Line Items] | ||||
| Fair Value of Plan Assets | 94,164 | 87,844 | 84,658 | 79,547 |
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Defined benefit pension plan | U.S. Government Treasury | Level 1
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| Defined Benefit Plan Disclosure [Line Items] | ||||
| Fair Value of Plan Assets | 2,143 | 4,039 | ||
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Defined benefit pension plan | Common Stocks | Level 1
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| Defined Benefit Plan Disclosure [Line Items] | ||||
| Fair Value of Plan Assets | 16,799 | 14,084 | ||
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Defined benefit pension plan | Mutual Funds | Level 1
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| Defined Benefit Plan Disclosure [Line Items] | ||||
| Fair Value of Plan Assets | 58,480 | 44,382 | ||
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Defined benefit pension plan | Cash and Cash Equivalents | Level 1
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| Defined Benefit Plan Disclosure [Line Items] | ||||
| Fair Value of Plan Assets | 7,819 | 12,287 | ||
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Defined benefit pension plan | U.S. Government Agency | Level 2 Inputs
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| Defined Benefit Plan Disclosure [Line Items] | ||||
| Fair Value of Plan Assets | $ 8,923 | $ 13,052 |