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Fair Value Measurements And Derivative Instruments (Schedule Of Realized (Gains) Losses On Derivatives Recognized In Statement Of Operations) (Details) - Designated as Hedging Instrument [Member] - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Interest rate swap |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Amount of (Gain)/Loss Recognized | $ (2,423) | $ 1,846 | $ 4,390
Commodity Contract |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Amount of (Gain)/Loss Recognized | (11,452) | 6,440 | (4,134)
Foreign Currency Derivatives |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Amount of (Gain)/Loss Recognized | $ 1,975 | $ 0 | $ 0

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- Definition Amount of increase (decrease) in the fair value of derivatives recognized in the income statement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b)(1) -URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5618551-113959 + Details
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