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Loans (Commercial Loan Portfolio Categorized By Internally Assigned Asset Classification) (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2014
Dec. 31, 2013
Financing Receivable, Recorded Investment [Line Items]    
Total Loans $ 1,817,471 $ 1,802,105
Commercial Business [Member]
   
Financing Receivable, Recorded Investment [Line Items]    
Total Loans 268,308 265,751
Commercial Business [Member] | Uncriticized [Member]
   
Financing Receivable, Recorded Investment [Line Items]    
Total Loans 249,625 250,553
Commercial Business [Member] | Special Mention [Member]
   
Financing Receivable, Recorded Investment [Line Items]    
Total Loans 8,133 6,311
Commercial Business [Member] | Substandard [Member]
   
Financing Receivable, Recorded Investment [Line Items]    
Total Loans 10,550 8,887
Commercial Business [Member] | Doubtful [Member]
   
Financing Receivable, Recorded Investment [Line Items]    
Total Loans      
Commercial Mortgage [Member]
   
Financing Receivable, Recorded Investment [Line Items]    
Total Loans 469,725 470,312
Commercial Mortgage [Member] | Uncriticized [Member]
   
Financing Receivable, Recorded Investment [Line Items]    
Total Loans 449,042 449,447
Commercial Mortgage [Member] | Special Mention [Member]
   
Financing Receivable, Recorded Investment [Line Items]    
Total Loans 3,713 6,895
Commercial Mortgage [Member] | Substandard [Member]
   
Financing Receivable, Recorded Investment [Line Items]    
Total Loans 16,970 13,970
Commercial Mortgage [Member] | Doubtful [Member]
   
Financing Receivable, Recorded Investment [Line Items]    
Total Loans