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Income Taxes (Effective Tax Rates Differ From Federal Statutory Rate) (Details) | 3 Months Ended | 9 Months Ended
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Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Income Taxes [Abstract] |  |  |  |
Statutory tax rate | 21.00% | 21.00% | 21.00% | 21.00%
Increase (decrease) resulting from: |  |  |  |
Restricted stock | (0.10%) |  | (0.30%) |
Tax exempt earnings on bank owned life insurance | (0.50%) | (0.10%) | (0.40%) | (0.10%)
Gain on redemption of life insurance policies |  |  | (0.40%) |
Dividends on equity securities | (0.20%) |  | (0.20%) |
Low income housing credits | (0.80%) | (0.20%) | (0.70%) | (0.30%)
Other, net | 0.10% |  |  | 0.10%
Effective tax rate | 19.50% | 20.70% | 19.00% | 20.70%

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