Derivative Instruments and Hedging Activities (Derivative Instrument Fair Value) (Detail) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017	Sep. 24, 2017
Designated as Hedging Instrument \| Cash Flow Hedging
Derivatives, Fair Value
Notional Value	$ 1,012,996	$ 676,639	$ 747,651
Designated as Hedging Instrument \| Cash Flow Hedging \| Other Current Assets
Derivatives, Fair Value
Asset Fair Value	12,298	1,388	439
Designated as Hedging Instrument \| Cash Flow Hedging \| Accrued Liabilities
Derivatives, Fair Value
Liability Fair Value	718	21,308	32,414
Designated as Hedging Instrument \| Cash Flow Hedging \| Foreign Currency Contracts
Derivatives, Fair Value
Notional Value	512,071	675,724	746,378
Designated as Hedging Instrument \| Cash Flow Hedging \| Foreign Currency Contracts \| Other Current Assets
Derivatives, Fair Value
Asset Fair Value	11,687	1,388	439
Designated as Hedging Instrument \| Cash Flow Hedging \| Foreign Currency Contracts \| Accrued Liabilities
Derivatives, Fair Value
Liability Fair Value	718	21,239	32,352
Designated as Hedging Instrument \| Cash Flow Hedging \| Commodity Contract
Derivatives, Fair Value
Notional Value	925	915	1,273
Designated as Hedging Instrument \| Cash Flow Hedging \| Commodity Contract \| Other Current Assets
Derivatives, Fair Value
Asset Fair Value	9	0	0
Designated as Hedging Instrument \| Cash Flow Hedging \| Commodity Contract \| Accrued Liabilities
Derivatives, Fair Value
Liability Fair Value	0	69	62
Designated as Hedging Instrument \| Cash Flow Hedging \| Interest Rate Swap
Derivatives, Fair Value
Notional Value	50,000	0	0
Designated as Hedging Instrument \| Cash Flow Hedging \| Interest Rate Swap \| Other Current Assets
Derivatives, Fair Value
Asset Fair Value	52	0	0
Designated as Hedging Instrument \| Cash Flow Hedging \| Interest Rate Swap \| Accrued Liabilities
Derivatives, Fair Value
Liability Fair Value	0	0	0
Designated as Hedging Instrument \| Cash Flow Hedging \| Treasury Rate Locks
Derivatives, Fair Value
Notional Value	450,000	0	0
Designated as Hedging Instrument \| Cash Flow Hedging \| Treasury Rate Locks \| Other Current Assets
Derivatives, Fair Value
Asset Fair Value	550	0	0
Designated as Hedging Instrument \| Cash Flow Hedging \| Treasury Rate Locks \| Accrued Liabilities
Derivatives, Fair Value
Liability Fair Value	0	0	0
Not Designated as Hedging Instrument
Derivatives, Fair Value
Notional Value	5,207	4,532	4,234
Not Designated as Hedging Instrument \| Other Current Assets
Derivatives, Fair Value
Asset Fair Value	233	381	285
Not Designated as Hedging Instrument \| Accrued Liabilities
Derivatives, Fair Value
Liability Fair Value	213	0	0
Not Designated as Hedging Instrument \| Commodity Contract
Derivatives, Fair Value
Notional Value	5,207	4,532	4,234
Not Designated as Hedging Instrument \| Commodity Contract \| Other Current Assets
Derivatives, Fair Value
Asset Fair Value	233	381	285
Not Designated as Hedging Instrument \| Commodity Contract \| Accrued Liabilities
Derivatives, Fair Value
Liability Fair Value	$ 213	$ 0	$ 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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- Definition

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

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 55
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=82849420&loc=SL20226000-175313

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 20
-Section 50
-Paragraph 4D
-Subparagraph (c)(2)
-URI http://asc.fasb.org/extlink&oid=82924980&loc=SL51823488-111719

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- Definition

Fair value, before effects of master netting arrangements, of a financial liability or 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 liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 20
-Section 50
-Paragraph 4D
-Subparagraph (c)(2)
-URI http://asc.fasb.org/extlink&oid=82924980&loc=SL51823488-111719

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

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 55
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=82849420&loc=SL20226000-175313

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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