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
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Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4A
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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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The amount of net gains or losses on foreign currency cash flow hedges reclassified during the period to earnings from accumulated other comprehensive income upon the hedged transaction affecting earnings.

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-Section 50
-Paragraph 4C
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The net gain (loss) relating to components of the gain (loss) on foreign currency cash flow hedging instruments excluded from the assessment of hedge effectiveness. Recognized in earnings.

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-SubTopic 10
-Section 50
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The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of derivative instruments, including options, swaps, futures, and forward contracts, held at each balance sheet date, that was included in earnings for the period.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
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Derivative Financial Instruments and Fair Value Measurements (Foreign Forward Currency Contracts Narrative) (Details) $ in Thousands, € in Millions	12 Months Ended
	Dec. 29, 2018 USD ($)	Dec. 30, 2017 USD ($)	Dec. 31, 2016 USD ($)	Dec. 29, 2018 EUR (€)	Dec. 29, 2018 USD ($)
Derivative [Line Items]
Unrealized loss (gain) on derivative instrument	$ (465)	$ 631	$ 547
Not Designated as Hedging Instrument [Member] \| Fair Value, Measurements, Recurring [Member]
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Income, Net	1,600	(2,400)	$ 1,000
Not Designated as Hedging Instrument [Member] \| Fair Value, Measurements, Recurring [Member] \| EUR
Derivative [Line Items]
Derivative, Notional Amount				€ 13.3	$ 16,000
Designated As Hedging Instrument [Member] \| Fair Value, Measurements, Recurring [Member]
Derivative [Line Items]
Unrealized loss (gain) on derivative instrument	(500)	(1,800)
Designated As Hedging Instrument [Member] \| Fair Value, Measurements, Recurring [Member] \| Reclassification Out Of Accumulated Other Comprehensive Income [Member]
Derivative [Line Items]
Foreign Currency Cash Flow Hedge Gain Loss Reclassified To Earnings Net	$ 100	1,400
Gain Loss On Components Excluded From Assessment Of Foreign Currency Cash Flow Hedge Effectiveness		$ 900