Derivative Financial Instruments (Schedule Of Gain Or Loss On The Hedged Item In The Same Line Item, Other Revenue, As The Offsetting Loss Or Gain On The Related Interest Rate Swaps) (Details) (Other Revenue [Member], USD $) In Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Swaps [Member]
Gain (Loss)	$ (1,707)	$ (961)	$ (3,338)	$ (1,454)
Loan [Member]
Gain (Loss)	$ 1,707	$ 961	$ 3,338	$ 1,454