Interest Rate Swap Derivatives (Schedule Of Notional Amounts Of Outstanding Derivative Positions) (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Derivative [Line Items]
Swap fee income		$ 666	$ 515
Collateral already posted, fair value		14,200		$ 8,600
Interest Rate Swap | Not Designated as Hedging Instrument
Derivative [Line Items]
Asset derivative, notional/contract amount		185,781		169,720
Liability derivatives, notional/contract amount		185,781		169,720
Interest Rate Swap | Not Designated as Hedging Instrument | Other Assets
Derivative [Line Items]
Asset derivative, fair value	[1]	14,620		8,646
Interest Rate Swap | Not Designated as Hedging Instrument | Other Liabilities
Derivative [Line Items]
Liability derivatives, fair value	[2]	$ 14,620		$ 8,646

[1] Included in Other Assets on the condensed consolidated balance sheet.

[2] Included in Other Liabilities on the condensed consolidated balance sheet.