Goodwill And Other Intangible Assets (Schedule Of Changes In Carrying Amount Of Goodwill And Net Other Intangible Assets) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Goodwill [Roll Forward]
Goodwill, Acquired During Period	$ 7,600
Amortization	1,400	$ 2,000	$ 3,100
Impairment, Intangible Asset, Finite-Lived, Statement of Income or Comprehensive Income [Extensible Enumeration]		Other intangible assets – net
Disposal of intangible assets	25,700
Goodwill [Member]
Goodwill [Roll Forward]
Balance, beginning	138,921	$ 138,921
Goodwill, Acquired During Period	7,618
Originations	0	0
Amortization	0	0
(Impairment) Recovery of Intangible Assets, Finite-lived		0
Balance, ending	146,539	138,921	138,921
Easement
Goodwill [Roll Forward]
Balance, beginning	3,600	3,600
Goodwill, Acquired During Period	0
Originations	0	0
Amortization	0	0
(Impairment) Recovery of Intangible Assets, Finite-lived		0
Balance, ending	3,600	3,600	3,600
Core Deposit Premium [Member]
Goodwill [Roll Forward]
Balance, beginning	705	1,004
Goodwill, Acquired During Period	0
Originations	0	0
Amortization	(247)	(299)
(Impairment) Recovery of Intangible Assets, Finite-lived		0
Balance, ending	458	705	1,004
Mortgage Servicing Rights [Member]
Goodwill [Roll Forward]
Balance, beginning	10,929	10,966
Goodwill, Acquired During Period	0
Originations	340	1,317
Amortization	(1,148)	(1,658)
(Impairment) Recovery of Intangible Assets, Finite-lived		304
Balance, ending	$ 10,121	$ 10,929	$ 10,966