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Income Taxes (Summary Of Differences Between Income Taxes At The Federal Statutory And Effective Tax Rate) (Details) | 3 Months Ended
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Mar. 31, 2019 | Mar. 31, 2018
Income Taxes [Abstract] |  |
Statutory tax rate | 21.00% | 21.00%
Increase (decrease) resulting from: |  |
Restricted stock | (0.10%) | 0.00%
Tax exempt income on bank owned life insurance | (0.30%) | (0.70%)
Low income housing credits | (0.70%) | (1.00%)
Other, net | 0.10% | (0.20%)
Effective tax rate | 20.00% | 19.10%

X
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