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Allowance For Loan Losses And Credit Quality Of Financing Receivables (Summary Of Troubled Debt Restructuring Subsequent Default) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
contract
Dec. 31, 2013
contract
Financing Receivable, Modifications [Line Items]    
Number of loans with subsequent default 0us-gaap_FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1  
Residential Real Estate [Member]    
Financing Receivable, Modifications [Line Items]    
Number of loans with subsequent default   1us-gaap_FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_ResidentialRealEstateMember
Recorded investment of loans with subsequent default   $ 269us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_ResidentialRealEstateMember
Commercial Real Estate [Member]    
Financing Receivable, Modifications [Line Items]    
Number of loans with subsequent default   3us-gaap_FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_CommercialRealEstateMember
Recorded investment of loans with subsequent default   $ 1,302us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= us-gaap_CommercialRealEstateMember