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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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.

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No definition available.

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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://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4B
-Subparagraph (c)(2)
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- Definition

Amount of gain (loss) recognized in earnings in the period from the increase (decrease) in fair value of foreign currency derivatives not designated as hedging instruments.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4A
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- Definition

Number of foreign currency exchange rate derivatives held by the entity at the reporting date.

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-Name Accounting Standards Codification
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Foreign Currency Contracts - Additional Information (Details) - Foreign Currency Forward Contracts $ in Millions	3 Months Ended	6 Months Ended
	Jun. 29, 2018 USD ($)	Jun. 29, 2018 USD ($)	Dec. 31, 2017 USD ($)	Jun. 30, 2017 Contract
Derivative [Line Items]
Aggregate notional amount of foreign currency forward contracts	$ 10.1	$ 10.1	$ 17.9
Fair value of foreign currency forward contracts			$ 0.2
Number of open foreign currency contracts \| Contract				0
Foreign Exchange Transaction Gains (Losses)
Derivative [Line Items]
Net gain (loss) on foreign currency forward contracts	0.2	0.9
Maximum
Derivative [Line Items]
Fair value of foreign currency forward contracts	$ 0.1	$ 0.1