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Hedging Instruments (Schedule Of Fair Values And Balance Sheet Classifications Of Derivatives Designated As Hedging Instruments) (Details) - Derivatives and non-derivatives designated as hedging instruments - USD ($) $ in Thousands | Mar. 31, 2021 | Dec. 31, 2020
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Derivatives, Fair Value [Line Items] |  |
Total derivative instruments presented as hedge instruments on the balance sheet | $ 3,733 | $ 125
Gross amounts subject to master netting arrangements not offset on the balance sheet | (2,223) | (125)
Net amount | 1,510 | 0
Total hedging instruments presented on the balance sheet | 111,224 | 124,339
Gross amounts subject to master netting arrangements not offset on the balance sheet | (2,223) | (125)
Net amount | 109,001 | 124,214
Foreign currency borrowings designated as net investment hedge on the balance sheet | Long-term debt |  |
Derivatives, Fair Value [Line Items] |  |
Total hedging instruments presented on the balance sheet | 104,327 | 109,125
Cash Flow Hedging |  |
Derivatives, Fair Value [Line Items] |  |
Total hedging instruments presented on the balance sheet | 6,897 | 15,214
Cash Flow Hedging | Foreign currency exchange contracts | Other current assets |  |
Derivatives, Fair Value [Line Items] |  |
Total derivative instruments presented as hedge instruments on the balance sheet | 1,595 | 125
Cash Flow Hedging | Foreign currency exchange contracts | Other long-term assets |  |
Derivatives, Fair Value [Line Items] |  |
Total derivative instruments presented as hedge instruments on the balance sheet | 628 | 0
Cash Flow Hedging | Foreign currency exchange contracts | Accrued liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total hedging instruments presented on the balance sheet | 6,863 | 12,373
Cash Flow Hedging | Foreign currency exchange contracts | Other long-term liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total hedging instruments presented on the balance sheet | 34 | 0
Cash Flow Hedging | Cross currency swaps | Other long-term assets |  |
Derivatives, Fair Value [Line Items] |  |
Total derivative instruments presented as hedge instruments on the balance sheet | 1,510 | 0
Cash Flow Hedging | Cross currency swaps | Other long-term liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Total hedging instruments presented on the balance sheet | $ 0 | $ 2,841

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