Derivative Instruments and Hedging Activities Notional and Fair Value (Details) - Not Designated as Hedging Instrument - USD ($) $ in Thousands	6 Months Ended
Apr. 01, 2017	Oct. 01, 2016
Foreign Exchange Contract
Derivatives, Fair Value [Line Items]
Maximum Remaining Maturity of Foreign Currency Derivatives	4 years
Purchase \| Euro Member Countries, Euro
Derivatives, Fair Value [Line Items]
Derivative Asset, Notional Amount	$ 102,403	$ 91,108
Derivative Asset, Fair Value, Gross Asset	778	162
Purchase \| Japan, Yen
Derivatives, Fair Value [Line Items]
Derivative Asset, Notional Amount	0	0
Derivative Liability, Fair Value, Gross Liability	0	0
Purchase \| Korea (South), Won
Derivatives, Fair Value [Line Items]
Derivative Asset, Notional Amount	15,744	31,248
Derivative Liability, Fair Value, Gross Liability	(380)
Derivative Asset, Fair Value, Gross Asset		413
Purchase \| China, Yuan Renminbi
Derivatives, Fair Value [Line Items]
Derivative Asset, Notional Amount	518	0
Derivative Asset, Fair Value, Gross Asset	(3)	0
Purchase \| Other Foreign Currency Hedge
Derivatives, Fair Value [Line Items]
Derivative Asset, Notional Amount	5,008	6,033
Derivative Liability, Fair Value, Gross Liability		(4)
Derivative Asset, Fair Value, Gross Asset	9
Sell \| Euro Member Countries, Euro
Derivatives, Fair Value [Line Items]
Derivative Liability, Notional Amount	0	(750,454)
Derivative Liability, Fair Value, Gross Liability		(2,234)
Derivative Asset, Fair Value, Gross Asset	0
Sell \| Japan, Yen
Derivatives, Fair Value [Line Items]
Derivative Liability, Notional Amount	(15,600)	(36,450)
Derivative Liability, Fair Value, Gross Liability	(72)	(343)
Sell \| Korea (South), Won
Derivatives, Fair Value [Line Items]
Derivative Liability, Notional Amount	(36,018)	(37,929)
Derivative Liability, Fair Value, Gross Liability	(310)	(152)
Sell \| China, Yuan Renminbi
Derivatives, Fair Value [Line Items]
Derivative Liability, Notional Amount	(9,211)	(25,237)
Derivative Liability, Fair Value, Gross Liability	(12)	(91)
Sell \| Other Foreign Currency Hedge
Derivatives, Fair Value [Line Items]
Derivative Liability, Notional Amount	(2,068)	(1,775)
Derivative Liability, Fair Value, Gross Liability	$ (13)
Derivative Asset, Fair Value, Gross Asset		$ 38

Nominal or face amount used to calculate payments on the derivative asset.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5579245-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Notional Amount
-URI http://asc.fasb.org/extlink&oid=6519104

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5580258-113959

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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
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-Section 50
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-Subparagraph (a),(c)
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624163-113959

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
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-Section 55
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-URI http://asc.fasb.org/extlink&oid=51825145&loc=SL20226000-175313

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-Paragraph 4D
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-URI http://asc.fasb.org/extlink&oid=64830801&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=64830801&loc=SL51823488-111719

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
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-URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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-Topic 815
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-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624163-113959

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
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-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=51825145&loc=SL20226000-175313

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- Definition

Nominal or face amount used to calculate payments on the derivative liability.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5580258-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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-URI http://asc.fasb.org/extlink&oid=6519104

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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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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- Definition

Maximum amount of time remaining before foreign currency exchange rate derivatives mature or expire, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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