Derivatives (Schedule Of Notional Amounts Of Outstanding Derivative Positions) (Details) - Interest Rate Swap - Not Designated as Hedging Instrument - USD ($) $ in Thousands		Dec. 31, 2016	Dec. 31, 2015
Derivative [Line Items]
Derivative Asset, Notional Amount		$ 256,950	$ 169,720
Derivative Liability, Notional Amount		256,950	169,720
Other Assets
Derivative [Line Items]
Gross Amounts Recognized	[1]	5,239	8,646
Other Liabilities
Derivative [Line Items]
Gross Amounts Recognized	[2]	$ 5,239	$ 8,646

[1] Included in other assets on the consolidated balance sheet

[2] Included in other liabilities on the consolidated balance sheet