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Supplementary Balance Sheet Detail (Schedule Of Amounts Recognized In Balance Sheet) (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
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Balance Sheet Related Disclosures [Abstract] |  |
Raw materials and supplies | $ 109,084 | $ 216,761
Work in process | 186,473 | 192,821
Finished goods | 34,589 | 38,159
Inventories | 330,146 | 447,741
Prepaid expenses | 11,176 | 15,261
Value-added tax and other indirect taxes receivable | 28,629 | 39,417
Spare parts inventory | 15,242 | 12,990
Other current assets | 11,335 | 19,604
Prepaid Expense and Other Assets, Current | 66,382 | 87,272
Land and improvements | 49,962 | 48,478
Buildings | 87,820 | 82,054
Machinery and equipment and other | 717,002 | 655,823
Construction in progress | 65,660 | 82,813
Property, plant and equipment | 920,444 | 869,168
Payrolls (including incentive programs) | 22,369 | 10,799
Employee benefits | 7,018 | 6,921
Deferred Revenue | 31,583 | 27,878
Other | 30,732 | 43,751
Accrued liabilities, net | 91,702 | 89,349
Post-employment benefits | 12,613 | 11,996
Pension and related benefits | 26,068 | 22,768
Other | 16,964 | 16,058
Other long - term obligations | $ 55,645 | $ 50,822

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