Goodwill And Other Intangible Assets (Schedule Of Intangible Assets With Estimable Useful Lives) (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 27,988	$ 53,457
Accumulated Amortization	(17,156)	(41,823)
Valuation Allowance	0	0
Net Amount	10,832	11,634
Core Deposit Premium
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	5,550	31,270
Accumulated Amortization	(5,039)	(30,565)
Valuation Allowance	0	0
Net Amount	511	705
Mortgage Servicing Rights
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	22,438	22,187
Accumulated Amortization	(12,117)	(11,258)
Valuation Allowance	0	0
Net Amount	$ 10,321	$ 10,929