ACCUMULATED OTHER COMPREHENSIVE INCOME (Details 2) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2013
Reclassifications out of Accumulated Other Comprehensive Income
General and administrative: Other	$ 16,313
Investment income	(3,619)
Amounts reclassified from accumulated other comprehensive income	(27)
Gains Reclassified from Accumulated Other Comprehensive Income
Reclassifications out of Accumulated Other Comprehensive Income
Amounts reclassified from accumulated other comprehensive income	(27)
Amortization of pension and other benefit adjustments
Reclassifications out of Accumulated Other Comprehensive Income
Amounts reclassified from accumulated other comprehensive income	(19)
Amortization of pension and other benefit adjustments \| Gains Reclassified from Accumulated Other Comprehensive Income
Reclassifications out of Accumulated Other Comprehensive Income
General and administrative: Other	(19)
Unrealized gains on marketable securities
Reclassifications out of Accumulated Other Comprehensive Income
Amounts reclassified from accumulated other comprehensive income	(8)
Unrealized gains on marketable securities \| Gains Reclassified from Accumulated Other Comprehensive Income
Reclassifications out of Accumulated Other Comprehensive Income
Investment income	$ (8)

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Amount after tax of reclassification adjustments of other comprehensive income (loss).

+ References

No definition available.

+ Details

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- Definition

The aggregate amount of income from investments (for example, dividends) not considered a component of the entity's core operations.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.7)

-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 7

-Article 5

+ Details

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- Definition

The sum of expenses not otherwise specified in the taxonomy for managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

+ References

+ Details

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