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Hedging Instruments (Schedule Of Fair Values And Balance Sheet Classifications Of Derivatives Designated As Hedging Instruments) (Details) - USD ($) $ in Thousands | Mar. 31, 2018 | Dec. 31, 2017
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Derivatives, Fair Value [Line Items] |  |
Hedging Liabilities, Total hedging instruments presented on the balance sheet | $ 117,222 | $ 113,035
Hedging Liabilities, Gross amounts subject to master netting arrangements not offset on the balance sheet | 815 | 477
Hedging Liabilities, Net amount | 116,407 | 112,558
Cash Flow Hedges [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Hedging Liabilities, Total hedging instruments presented on the balance sheet | 7,741 | 6,468
Derivatives Designated As Hedging Instruments [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Hedging Assets, Gross amounts subject to master netting arrangements not offset on the balance sheet | 815 | 477
Hedging Assets, Net amount | 77 |
Derivatives Designated As Hedging Instruments [Member] | Cash Flow Hedges [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Hedging Assets, Total derivative instruments presented as cash flow hedges on the balance sheet | 892 | 477
Foreign Currency Exchange Contracts [Member] | Accrued Liabilities [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Hedging Liabilities, Total hedging instruments presented on the balance sheet | 7,249 | 6,468
Foreign Currency Exchange Contracts [Member] | Other Long-Term Liabilities [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Hedging Liabilities, Total hedging instruments presented on the balance sheet | 492 |
Foreign Currency Exchange Contracts [Member] | Derivatives Designated As Hedging Instruments [Member] | Other Current Assets [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Hedging Assets, Total derivative instruments presented as cash flow hedges on the balance sheet | 452 | 477
Foreign Currency Exchange Contracts [Member] | Derivatives Designated As Hedging Instruments [Member] | Other Long-Term Assets, Net [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Hedging Assets, Total derivative instruments presented as cash flow hedges on the balance sheet | 440 |
Foreign Currency Borrowings Designated As Net Investment Hedge On The Balance Sheet [Member] | Long-term Debt [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Hedging Liabilities, Total hedging instruments presented on the balance sheet | $ 109,481 | $ 106,567

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- Definition Fair value, after effects of master netting arrangements, deduction of assets not subject to a master netting arrangement and elected not to be offset, of financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, offset against an obligation to return collateral. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=82849420&loc=SL20226016-175313 + Details
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- Definition Fair value of financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, elected not to be offset, deducted from derivative assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=82849420&loc=SL20226016-175313 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (d)(1)(i) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 + Details
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