Comprehensive Income (Components Of Accumulated OCI, Net Of Tax) (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2022	Jun. 30, 2021
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance	$ 389,461	$ 413,812	$ 408,122	$ 407,118	$ 413,812	$ 407,118
Current Period Change	(16,231)	(27,684)	3,207	(4,395)	(43,915)	(1,188)
Balance	376,456	389,461	416,644	408,122	376,456	416,644
Unrealized Holding Gains (Losses) On Available-For-Sale Securities [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance		1,955			1,955
Current Period Change					(45,127)
Balance	(43,172)				(43,172)
Unrealized Actuarial Loss On Pension Plan [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance		(3,056)			(3,056)
Balance	(3,056)				(3,056)
Unrealized Loss On Derivative Instruments [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance		(1,212)			(1,212)
Current Period Change					1,212
Accumulated Other Comprehensive Loss [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance	(29,997)	(2,313)	(825)	3,570	(2,313)	3,570
Current Period Change	(16,231)	(27,684)	3,207	(4,395)	(43,915)
Balance	$ (46,228)	$ (29,997)	$ 2,382	$ (825)	$ (46,228)	$ 2,382