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Employee Benefit Plans (The Major Categories Of Plan Assets Measured At Fair Value On a Recurring Basis) (Details) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Defined Benefit Plan Disclosure [Line Items] |  |
Cash equivalents | $ 0 | $ 1,259
Equity securities | 37,157 | 31,848
Fixed income securities | 36,459 | 63,176
Total Plan investments | 104,227 | 102,176
Foreign Currencies [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Cash equivalents | 0 | 6
Short Term Investment Funds [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Cash equivalents | 0 | 1,253
Commingled Pension Trust Funds [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Equity securities | 37,157 | 31,848
Fixed income securities | 36,459 | 63,171
Total Plan investments | 30,611 | 5,893
All Other Corporate Bonds [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fixed income securities | 0 | 5
Level 1 Inputs [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Cash equivalents | 0 | 6
Total Plan investments | 0 | 6
Level 1 Inputs [Member] | Foreign Currencies [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Cash equivalents | 0 | 6
Level 2 Inputs [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Cash equivalents | 0 | 1,253
Equity securities | 37,157 | 31,848
Fixed income securities | 36,459 | 63,176
Total Plan investments | 104,227 | 102,170
Level 2 Inputs [Member] | Short Term Investment Funds [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Cash equivalents | 0 | 1,253
Level 2 Inputs [Member] | Commingled Pension Trust Funds [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Equity securities | 37,157 | 31,848
Fixed income securities | 36,459 | 63,171
Total Plan investments | 30,611 | 5,893
Level 2 Inputs [Member] | All Other Corporate Bonds [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fixed income securities | $ 0 | $ 5

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