| INTANGIBLE ASSETS (Information Concerning Intangible Assets with Finite Life) (Details) (USD $) In Thousands, unless otherwise specified | Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2013 | 
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| Information concerning intangible assets with finite life | |||
| Gross Carrying Value | $ 76,185 | $ 46,615 | $ 46,615 | 
| Accumulated Amortization | 39,706 | 34,635 | 32,794 | 
| Net Carrying Value | $ 36,479 | $ 11,980 | $ 13,821 | 
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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Details 
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- Definition Gross carrying amount before accumulated amortization as of the balance sheet date of intangible assets not otherwise specified in the taxonomy having a reasonably expected period of economic benefit. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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