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INVESTMENTS IN DEBT AND EQUITY SECURITIES (Gross Realized Gains and Losses) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Gain (Loss) on Investments [Line Items]      
Gross realized gains on sales of available-for-sale securities $ 5,063us-gaap_AvailableForSaleSecuritiesGrossRealizedGains $ 802us-gaap_AvailableForSaleSecuritiesGrossRealizedGains $ 1,675us-gaap_AvailableForSaleSecuritiesGrossRealizedGains
Gross realized losses on sales of available-for-sale securities (3,374)us-gaap_AvailableforsaleSecuritiesGrossRealizedLossesExcludingOtherThanTemporaryImpairments (354)us-gaap_AvailableforsaleSecuritiesGrossRealizedLossesExcludingOtherThanTemporaryImpairments (374)us-gaap_AvailableforsaleSecuritiesGrossRealizedLossesExcludingOtherThanTemporaryImpairments
Other-than-temporary impairment (3)us-gaap_ImpairmentOfInvestments (412)us-gaap_ImpairmentOfInvestments (2)us-gaap_ImpairmentOfInvestments
Gross realized gains on calls of investment securities 0us-gaap_AvailableForSaleSecuritiesGrossRealizedGainLossNet 0us-gaap_AvailableForSaleSecuritiesGrossRealizedGainLossNet 7us-gaap_AvailableForSaleSecuritiesGrossRealizedGainLossNet
Net realized gain on investment securities $ 1,686us-gaap_GainLossOnInvestments $ 36us-gaap_GainLossOnInvestments $ 1,306us-gaap_GainLossOnInvestments