Fair Value Disclosures (Summary Of Gains (Losses) Due To Changes In Instrument Specific Credit Risk For Loans and Other Receivables And Loan Commitments Measured At Fair Value Under Fair Value Option) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Financial Instruments [Line Items]
Loans and other receivables	$ (5,294)	$ 2,038	$ (2,377)	$ 1,430
Financial Instruments Sold [Member]
Financial Instruments [Line Items]
Loans	110	(1,555)	238	(2,591)
Loan commitments	$ 5,544	$ (9,024)	$ (1,622)	$ (11,090)