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Allowance For Loan Losses (Schedule Of Troubled Debt Restructurings) (Details) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 USD ($) contract | Dec. 31, 2018 USD ($) contract | Dec. 31, 2017 USD ($) contract
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Total Troubled Debt Restructurings | $ 29,630 | $ 34,854 |
Troubled Debt Restructuring Modifications Number Of Contracts | contract | 41 | 43 | 48,000
Pre-modification Outstanding Recorded Investment | $ 3,498 | $ 2,600 | $ 7,356
Post-modification Outstanding Recorded Investment | 3,498 | 2,600 | $ 7,261
Commercial and industrial |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Total Troubled Debt Restructurings | $ 0 | $ 98 |
Troubled Debt Restructuring Modifications Number Of Contracts | contract | 0 | 0 | 0
Pre-modification Outstanding Recorded Investment | $ 0 | $ 0 | $ 0
Post-modification Outstanding Recorded Investment | 0 | 0 | $ 0
Commercial real estate |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Total Troubled Debt Restructurings | $ 4,973 | $ 8,205 |
Troubled Debt Restructuring Modifications Number Of Contracts | contract | 0 | 0 | 2,000
Pre-modification Outstanding Recorded Investment | $ 0 | $ 0 | $ 3,098
Post-modification Outstanding Recorded Investment | 0 | 0 | $ 3,003
Residential real estate |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Total Troubled Debt Restructurings | $ 21,029 | $ 23,521 |
Troubled Debt Restructuring Modifications Number Of Contracts | contract | 31 | 33 | 33,000
Pre-modification Outstanding Recorded Investment | $ 2,531 | $ 2,326 | $ 3,987
Post-modification Outstanding Recorded Investment | 2,531 | 2,326 | $ 3,987
Home equity |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Total Troubled Debt Restructurings | $ 3,628 | $ 3,030 |
Troubled Debt Restructuring Modifications Number Of Contracts | contract | 10 | 10 | 13,000
Pre-modification Outstanding Recorded Investment | $ 967 | $ 274 | $ 271
Post-modification Outstanding Recorded Investment | 967 | 274 | $ 271
Consumer |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Total Troubled Debt Restructurings | $ 0 | $ 0 |
Troubled Debt Restructuring Modifications Number Of Contracts | contract | 0 | 0 | 0
Pre-modification Outstanding Recorded Investment | $ 0 | $ 0 | $ 0
Post-modification Outstanding Recorded Investment | $ 0 | $ 0 | $ 0

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