Residential Mortgage Servicing Rights (Schedule Of Information Relates To Serviced Loan Portfolio) (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Transfers and Servicing [Abstract]
Balance of loans serviced for others	$ 8,081,039	$ 8,175,664
MSR as a percentage of serviced loans	1.37%	1.34%