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GOODWILL (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
GOODWILL [Abstract]      
Goodwill $ 105,647us-gaap_GoodwillGross $ 105,647us-gaap_GoodwillGross $ 105,647us-gaap_GoodwillGross
Accumulated impairment losses (41,777)us-gaap_GoodwillImpairedAccumulatedImpairmentLoss [1] (41,777)us-gaap_GoodwillImpairedAccumulatedImpairmentLoss [1] (41,777)us-gaap_GoodwillImpairedAccumulatedImpairmentLoss [1]
Goodwill net 63,870us-gaap_Goodwill 63,870us-gaap_Goodwill 63,870us-gaap_Goodwill
Impairment loss $ 0us-gaap_GoodwillImpairmentLoss $ 0us-gaap_GoodwillImpairmentLoss $ 23,931us-gaap_GoodwillImpairmentLoss
[1] During the year ended December 31, 2012, the Company recorded an impairment loss of $ 23,931.