Derivative Instruments (Schedule Of Fair Values Of Derivative Instruments) (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Derivatives, Fair Value [Line Items]
Other assets	$ 10,621	$ 10,457
Other liabilities	(10,348)	(10,948)
Not Designated as Hedging Instrument [Member] | Interest Rate Swaps [Member]
Derivatives, Fair Value [Line Items]
Other assets	10,067	10,144
Other liabilities	(10,067)	(10,166)
Not Designated as Hedging Instrument [Member] | Interest Rate Caps [Member]
Derivatives, Fair Value [Line Items]
Other assets	30	62
Other liabilities	(30)	(62)
Not Designated as Hedging Instrument [Member] | Credit Risk Participation Agreements [Member]
Derivatives, Fair Value [Line Items]
Other assets	2	3
Other liabilities	(177)	(226)
Not Designated as Hedging Instrument [Member] | Foreign Exchange Contracts [Member]
Derivatives, Fair Value [Line Items]
Other assets	109	248
Other liabilities	(33)	(494)
Not Designated as Hedging Instrument [Member] | Mortgage Loan Commitments [Member]
Derivatives, Fair Value [Line Items]
Other assets	353	0
Other liabilities	(8)	0
Not Designated as Hedging Instrument [Member] | Mortgage Loan Forward Sale Contracts [Member]
Derivatives, Fair Value [Line Items]
Other assets	14	0
Other liabilities	(13)	0
Not Designated as Hedging Instrument [Member] | Forward TBA Contracts [Member]
Derivatives, Fair Value [Line Items]
Other assets	46	0
Other liabilities	$ (20)	$ 0