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Derivative Instruments (Schedule Of Mortgage Banking Derivatives) (Details) - USD ($)
$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Derivatives, Fair Value [Line Items]      
Fair value, Derivative assets $ 4,233 $ 538 $ 1,944
Fair value, Derivative liabilities (4,233) (538) (1,944)
Interest Rate Commitments [Member]      
Derivatives, Fair Value [Line Items]      
Notional Amount, Assets 3,940 50,312 1,048,613
Fair value, Derivative assets   555 18,100
TBA Mortgage-Back Securities [Member]      
Derivatives, Fair Value [Line Items]      
Notional Amount, Assets   53,250 506,750
Fair value, Derivative assets 0 53,250 506,750
Fair value, Derivative liabilities $ 0 $ (73) $ (2,690)