Goodwill And Other Intangible Assets (Schedule Of Intangible Assets With Estimable Useful Lives) (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 53,431	$ 52,140
Accumulated Amortization	(41,432)	(39,866)
Valuation Allowance	0	(304)
Net Amount	11,999	11,970
Core Deposit Premium
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	31,270	31,270
Accumulated Amortization	(30,499)	(30,266)
Valuation Allowance	0	0
Net Amount	771	1,004
Mortgage Servicing Rights
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	22,161	20,870
Accumulated Amortization	(10,933)	(9,600)
Valuation Allowance	0	(304)
Net Amount	$ 11,228	$ 10,966