Derivative Financial Instruments (Fair Value Of Derivative Instruments Included In Balance Sheets) (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Foreign Exchange Forward [Member] \| Prepaid Expenses and Other Current Assets [Member]
Derivative Instruments Not Designated as Hedging Instruments [Abstract]
Foreign Currency Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value	$ 785	$ 943
Foreign Exchange Forward [Member] \| Other Assets [Member]
Derivative Instruments Not Designated as Hedging Instruments [Abstract]
Foreign Currency Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value	2,241	2,858
Foreign Exchange Forward [Member] \| Accrued Liabilities [Member]
Derivative Instruments Not Designated as Hedging Instruments [Abstract]
Foreign Currency Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value	1,069	1,223
Foreign Exchange Forward [Member] \| Other Liabilities [Member]
Derivative Instruments Not Designated as Hedging Instruments [Abstract]
Foreign Currency Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value	2,995	3,252
Interest Rate Swap [Member] \| Other Assets [Member]
Derivative Instruments Not Designated as Hedging Instruments [Abstract]
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value	1,298	1,444
Other Contract [Member] \| Other Assets [Member]
Derivative Instruments Not Designated as Hedging Instruments [Abstract]
Foreign Currency Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value	$ 50,809	$ 37,065

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- Definition

Fair value as of the balance sheet date of all foreign currency derivative assets not designated as hedging instruments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4B
-Subparagraph (c)(2)
-URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624163-113959

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- Definition

Fair value as of the balance sheet date of all foreign currency derivative liabilities not designated as hedging instruments.

+ References

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- Definition

Fair value as of the balance sheet date of all derivative assets not designated as hedging instruments.

+ References

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