Income Taxes (Summary Of Differences Between Income Taxes At The Federal Statutory And Effective Tax Rate) (Details)	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
Income Taxes [Abstract]
Statutory tax rate	21.00%	21.00%
Increase (decrease) resulting from:
Restricted stock	0.20%	(0.10%)
Tax exempt income on bank owned life insurance	(0.30%)	(0.30%)
Low income housing credits	(1.10%)	(0.70%)
Other, net	0.70%	0.10%
Effective tax rate	20.50%	20.00%

Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other adjustments.

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Percentage of difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operation, attributable to expense for award under share-based payment arrangement. Excludes expense determined to be nondeductible upon grant or after for award under share-based payment arrangement.

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