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Business And Summary Of Significant Accounting Policies (Narrative) (Details 2) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Accounting Policies [Abstract]      
Depreciation expense $ 54,300 $ 47,700 $ 45,400
Capital Expenditures Incurred but Not yet Paid 10,000 14,000  
Amortization of debt issuance costs $ 3,193 4,631 3,475
Related Party Tax Agreement Percent Of Savings 85.00%    
Environmental Remediation Expense, Statement of Income or Comprehensive Income [Extensible Enumeration] Selling and administrative expenses    
Environmental remediation, compliance and management expenses $ 9,400 12,100 22,400
Accrued liability relating to environmental remediation 3,900 4,400  
Amortization of Other Deferred Charges 6,200 7,500 4,700
Deferred costs; amount deferred in period. 4,100 700  
Lower of cost or market inventory valuation adjustment 24,878 12,431 $ 0
Idle Inventory Costs $ 22,100 $ 62,400