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OTHER ASSETS (Details 2) (USD $)
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Other assets      
Mortgage loans sold and serviced for others $ 625,400,000us-gaap_ProceedsFromSaleOfMortgageLoansHeldForSale $ 641,200,000us-gaap_ProceedsFromSaleOfMortgageLoansHeldForSale $ 603,700,000us-gaap_ProceedsFromSaleOfMortgageLoansHeldForSale
Servicing fees 1,500,000us-gaap_ServicingFeesNet 1,500,000us-gaap_ServicingFeesNet 2,800,000us-gaap_ServicingFeesNet
Significant assumptions used in the valuation of servicing rights      
Weighted average discount rate (as a percent) 10.40%us-gaap_ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueDiscountRate    
Mortgage servicing rights activity      
Balance at beginning of year 4,112,000us-gaap_ServicingAssetAtAmortizedValue 3,198,000us-gaap_ServicingAssetAtAmortizedValue  
Additions 680,000us-gaap_ServicingAssetAtAmortizedValueAdditions 1,056,000us-gaap_ServicingAssetAtAmortizedValueAdditions  
Amortization (1,035,000)us-gaap_ServicingAssetAtAmortizedValueAmortization1 (915,000)us-gaap_ServicingAssetAtAmortizedValueAmortization1  
Allowance Adjustment   773,000us-gaap_ServicingAssetAtAmortizedCostOtherThanTemporaryImpairments  
Balance at end of year $ 3,757,000us-gaap_ServicingAssetAtAmortizedValue $ 4,112,000us-gaap_ServicingAssetAtAmortizedValue $ 3,198,000us-gaap_ServicingAssetAtAmortizedValue
Minimum      
Significant assumptions used in the valuation of servicing rights      
Pre-payment speed (as a percent) 7.83%us-gaap_ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValuePrepaymentSpeed
/ us-gaap_RangeAxis
= us-gaap_MinimumMember		    
Maximum      
Significant assumptions used in the valuation of servicing rights      
Pre-payment speed (as a percent) 19.00%us-gaap_ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValuePrepaymentSpeed
/ us-gaap_RangeAxis
= us-gaap_MaximumMember