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Supplementary Balance Sheet Detail (Schedule Of Amounts Recognized In Balance Sheet, Footnote) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Balance Sheet Related Disclosures [Abstract]      
Brazil value-added tax credit $ 11,511 $ 0 $ 0