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Borrowed Funds (Summary Of Short-Term Borrowings) (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Dec. 31, 2016
[1]
Debt Instrument [Line Items]      
Beginning Balance $ 228,868 $ 153,448 $ 224,461
Short-term FHLB Advances [Member]      
Debt Instrument [Line Items]      
Beginning Balance 225,400 150,000  
Average balance outstanding for the period 193,481 165,102  
Maximum balance outstanding at any month end during period $ 225,400 $ 188,450  
Weighted average interest rate for the period 1.02% 0.58%  
Weighted average interest rate for balances outstanding 0.84% 0.57%  
Federal Funds Purchased and Lines of Credit [Member]      
Debt Instrument [Line Items]      
Beginning Balance $ 3,468 $ 3,448  
Average balance outstanding for the period 3,465 3,446  
Maximum balance outstanding at any month end during period $ 3,468 $ 3,448  
Weighted average interest rate for the period 1.00% 0.50%  
Weighted average interest rate for balances outstanding 0.78% 0.50%  
[1] December 31, 2016 financial information has been extracted from audited consolidated financial statements