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FAIR VALUE (Details 3) (Level 3, Recurring basis, USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
State and municipal      
Reconciliation and income statement classification of gains and losses      
Balance at the beginning of the period $ 14,420us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue
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$ 15,470us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue
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Included in other comprehensive income 5us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss
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(99)us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss
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Settlements (1,615)us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements
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(951)us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements
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Balance at the end of the period 12,810us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue
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14,420us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue
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Equity securities      
Reconciliation and income statement classification of gains and losses      
Balance at the beginning of the period 250us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue
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= us-gaap_EquitySecuritiesMember
  250us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue
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= us-gaap_EquitySecuritiesMember
Settlements (250)us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements
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= us-gaap_EquitySecuritiesMember
   
Balance at the end of the period     250us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue
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= us-gaap_EquitySecuritiesMember
Other securities      
Reconciliation and income statement classification of gains and losses      
Balance at the beginning of the period 2,526us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue
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2,557us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue
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Included in other comprehensive income (23)us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss
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(31)us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss
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Balance at the end of the period $ 2,503us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue
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$ 2,526us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue
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