Goodwill And Other Intangible Assets (Schedule Of Intangible Assets With Estimable Useful Lives) (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 27,777	$ 53,457
Accumulated Amortization	(16,459)	(41,823)
Valuation Allowance	0	0
Net Amount	11,318	11,634
Core Deposit Premium
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	5,550	31,270
Accumulated Amortization	(4,911)	(30,565)
Valuation Allowance	0	0
Net Amount	639	705
Mortgage Servicing Rights
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	22,227	22,187
Accumulated Amortization	(11,548)	(11,258)
Valuation Allowance	0	0
Net Amount	$ 10,679	$ 10,929