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Business And Summary Of Significant Accounting Policies (Narrative) (Details 2) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Accounting Policies [Abstract] |  |  |
Depreciation expense | $ 55,000 | $ 51,500 | $ 49,700
Capital Expenditures Incurred but Not yet Paid | 15,700 | 8,900 |
Debt Issuance Costs, Net | 11,800 | 18,100 |
Amortization of debt issuance costs | $ 8,642 | 9,179 | 4,125
Related Party Tax Agreement Percent Of Savings | 85.00% |  |
Environmental remediation, compliance and management expenses | $ 16,900 | 11,100 | 11,600
Accrued liability relating to environmental remediation | 4,900 | 4,900 |
Amortization of Other Deferred Charges | 4,600 | 6,000 | $ 5,100
Deferred costs; amount deferred in period. | $ 700 | $ 10,200 |

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