Derivative Instruments and Hedging Activities (Schedule Of Derivative Instrument Fair Value) (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Derivatives Designated As Hedging Instruments Under ASC Topic 815
Derivatives, Fair Value [Line Items]
Notional Value	$ 1,343,803	$ 676,639
Derivatives Designated As Hedging Instruments Under ASC Topic 815 \| Other Current Assets
Derivatives, Fair Value [Line Items]
Asset, Fair Value	15,071	1,388
Derivatives Designated As Hedging Instruments Under ASC Topic 815 \| Accrued Liabilities
Derivatives, Fair Value [Line Items]
Liability, Fair Value	4,853	21,308
Derivatives Designated As Hedging Instruments Under ASC Topic 815 \| Foreign currency contracts \| Cash Flow Hedging
Derivatives, Fair Value [Line Items]
Notional Value	442,976	675,724
Derivatives Designated As Hedging Instruments Under ASC Topic 815 \| Foreign currency contracts \| Other Current Assets \| Cash Flow Hedging
Derivatives, Fair Value [Line Items]
Asset, Fair Value	15,071	1,388
Derivatives Designated As Hedging Instruments Under ASC Topic 815 \| Foreign currency contracts \| Accrued Liabilities \| Cash Flow Hedging
Derivatives, Fair Value [Line Items]
Liability, Fair Value	313	21,239
Derivatives Designated As Hedging Instruments Under ASC Topic 815 \| Commodities contracts \| Cash Flow Hedging
Derivatives, Fair Value [Line Items]
Notional Value	827	915
Derivatives Designated As Hedging Instruments Under ASC Topic 815 \| Commodities contracts \| Other Current Assets \| Cash Flow Hedging
Derivatives, Fair Value [Line Items]
Asset, Fair Value	0	0
Derivatives Designated As Hedging Instruments Under ASC Topic 815 \| Commodities contracts \| Accrued Liabilities \| Cash Flow Hedging
Derivatives, Fair Value [Line Items]
Liability, Fair Value	46	69
Derivatives Designated As Hedging Instruments Under ASC Topic 815 \| Interest Rate Swap [Member] \| Cash Flow Hedging
Derivatives, Fair Value [Line Items]
Notional Value	900,000	0
Derivatives Designated As Hedging Instruments Under ASC Topic 815 \| Interest Rate Swap [Member] \| Other Current Assets \| Cash Flow Hedging
Derivatives, Fair Value [Line Items]
Asset, Fair Value	0	0
Derivatives Designated As Hedging Instruments Under ASC Topic 815 \| Interest Rate Swap [Member] \| Accrued Liabilities \| Cash Flow Hedging
Derivatives, Fair Value [Line Items]
Liability, Fair Value	4,494	0
Derivatives Not Designated As Hedging Instruments Under ASC Topic 815
Derivatives, Fair Value [Line Items]
Notional Value	5,239	4,532
Derivatives Not Designated As Hedging Instruments Under ASC Topic 815 \| Other Current Assets
Derivatives, Fair Value [Line Items]
Asset, Fair Value	0	381
Derivatives Not Designated As Hedging Instruments Under ASC Topic 815 \| Accrued Liabilities
Derivatives, Fair Value [Line Items]
Liability, Fair Value	463	0
Derivatives Not Designated As Hedging Instruments Under ASC Topic 815 \| Commodities contracts
Derivatives, Fair Value [Line Items]
Notional Value	5,239	4,532
Derivatives Not Designated As Hedging Instruments Under ASC Topic 815 \| Commodities contracts \| Other Current Assets
Derivatives, Fair Value [Line Items]
Asset, Fair Value	0	381
Derivatives Not Designated As Hedging Instruments Under ASC Topic 815 \| Commodities contracts \| Accrued Liabilities
Derivatives, Fair Value [Line Items]
Liability, Fair Value	$ 463	$ 0

Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column B

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Fair value, before effects of master netting arrangements, of a 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. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 55
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226000-175313

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 20
-Section 50
-Paragraph 4D
-Subparagraph (c)(2)
-URI http://asc.fasb.org/extlink&oid=109247956&loc=SL51823488-111719

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4B
-Subparagraph (a),(c)
-URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5624163-113959

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+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 20
-Section 50
-Paragraph 4D
-Subparagraph (c)(2)
-URI http://asc.fasb.org/extlink&oid=109247956&loc=SL51823488-111719

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
-Paragraph 4B
-Subparagraph (a),(c)
-URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5624163-113959

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 55
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226000-175313

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