v3.10.0.1

Fair Value Hierarchy (Details) - USD ($) $ in Thousands	Sep. 28, 2018	Dec. 31, 2017
Cash equivalents	$ 29,760	$ 24,083
Short-term Investments	0	149,608
Deferred compensation plans asset	8,039	6,374
Deferred compensation plans liability	8,039	6,374
Assets, Fair Value Disclosure	39,860	184,926
Liabilities, Fair Value Disclosure	11,888	10,152
Fair Value, Inputs, Level 1 [Member]
Cash equivalents	29,760	24,083
Assets, Fair Value Disclosure	29,760	24,083
Fair Value, Inputs, Level 2 [Member]
Short-term Investments		149,608
Deferred compensation plans asset	8,039	6,374
Deferred compensation plans liability	8,039	6,374
Assets, Fair Value Disclosure	10,100	160,843
Liabilities, Fair Value Disclosure	11,888	10,152
Foreign currency contracts related to customer sales contracts
Foreign currency contracts designated as hedges, Assets	357	3,287
Foreign currency contracts not designated as hedges, Assets	564	43
Foreign currency contracts designated as hedges, Liabilities	2,145	1,257
Foreign currency contracts not designated as hedges, Liability	65	740
Foreign currency contracts related to customer sales contracts | Fair Value, Inputs, Level 2 [Member]
Foreign currency contracts designated as hedges, Assets	357	3,287
Foreign currency contracts not designated as hedges, Assets	564	43
Foreign currency contracts designated as hedges, Liabilities	2,145	1,257
Foreign currency contracts not designated as hedges, Liability	65	740
Foreign currency contracts related to supplier purchase contracts
Foreign currency contracts designated as hedges, Assets	735	493
Foreign currency contracts not designated as hedges, Assets	405	1,038
Foreign currency contracts designated as hedges, Liabilities	172	1,332
Foreign currency contracts not designated as hedges, Liability	1,467	449
Foreign currency contracts related to supplier purchase contracts | Fair Value, Inputs, Level 2 [Member]
Foreign currency contracts designated as hedges, Assets	735	493
Foreign currency contracts not designated as hedges, Assets	405	1,038
Foreign currency contracts designated as hedges, Liabilities	172	1,332
Foreign currency contracts not designated as hedges, Liability	$ 1,467	$ 449

X

- Definition

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
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Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Aggregate carrying value as of the balance sheet date of the liabilities for all deferred compensation arrangements. Represents currently earned compensation under compensation arrangements that is not actually paid until a later date.

+ References

No definition available.

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Carrying amount as of the balance sheet date of assets held under deferred compensation agreements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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Aggregate fair value of all derivative assets designated as hedging instruments. Includes instruments designated as cash flow hedges, fair value hedges, and hedges of net investments in foreign operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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Fair value as of the balance sheet date of all foreign currency derivative assets not designated as hedging instruments.

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

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Fair value of financial and nonfinancial obligations.

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Amount of investments including trading securities, available-for-sale securities, held-to-maturity securities, and short-term investments classified as other and current.

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