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Hedging Instruments (Schedule of Fair Values and Balance Sheet Classifications of Derivatives and Non-derivatives Designated as Hedging Instruments) (Details) - Designated as Hedging Instrument - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
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Derivatives, Fair Value [Line Items] |  |
Hedging assets, total derivative instruments presented as cash flow hedges on the balance sheet | $ 125 | $ 6,350
Hedging assets, gross amounts subject to master netting arrangements not offset on the balance sheet | (125) | (1,354)
Hedging assets, net amount | 0 | 4,996
Hedging liabilities, total hedging instruments presented on the balance sheet | 124,339 | 102,308
Hedging liabilities, gross amounts subject to master netting arrangements not offset on the balance sheet | (125) | (1,354)
Hedging liabilities, net amount | 124,214 | 100,954
Cash Flow Hedges |  |
Derivatives, Fair Value [Line Items] |  |
Hedging liabilities, total hedging instruments presented on the balance sheet | 15,214 | 2,886
Foreign currency exchange contracts | Other current assets | Cash Flow Hedges |  |
Derivatives, Fair Value [Line Items] |  |
Hedging assets, total derivative instruments presented as cash flow hedges on the balance sheet | 125 | 1,791
Foreign currency exchange contracts | Accrued liabilities | Cash Flow Hedges |  |
Derivatives, Fair Value [Line Items] |  |
Hedging liabilities, total hedging instruments presented on the balance sheet | 12,373 | 2,886
Cross currency swaps | Other long-term assets |  |
Derivatives, Fair Value [Line Items] |  |
Hedging assets, total derivative instruments presented as cash flow hedges on the balance sheet | 0 | 4,559
Cross currency swaps | Other long-term liabilities | Cash Flow Hedges |  |
Derivatives, Fair Value [Line Items] |  |
Hedging liabilities, total hedging instruments presented on the balance sheet | 2,841 | 0
Foreign currency denominated debt | Long-term debt |  |
Derivatives, Fair Value [Line Items] |  |
Hedging liabilities, total hedging instruments presented on the balance sheet | $ 109,125 | $ 99,422

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