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Employee Benefit Plans (Changes In Fair Value Of Plan Assets) (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2019 USD ($)
Defined Benefit Plan Disclosure [Line Items] |
Fair value of plan assets at beginning of period | $ 75,188
Fair value of plan assets at end of period | 87,827
Level 3 Inputs [Member] |
Defined Benefit Plan Disclosure [Line Items] |
Fair value of plan assets at beginning of period | 2,897
Realized gain | 881
Sales | (2,873)
Unrealized gain | $ (905)

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