Fair value of the assets less the liabilities of a derivative or group of derivatives.

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Nominal or face amount used to calculate payment on derivative.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
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Aggregate net gain (loss) on all derivative instruments recognized in earnings during the period, before tax effects.

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Derivative Financial Instruments - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 28, 2020	Jun. 30, 2019	Jun. 28, 2020	Jun. 30, 2019	Dec. 29, 2019
Not Designated as Hedging Instrument \| Intercompany Loans
Derivative [Line Items]
Notional amount	$ 436,567	$ 247,295	$ 436,567	$ 247,295	$ 307,351
Not Designated as Hedging Instrument \| Foreign Exchange Forward
Derivative [Line Items]
Net fair value	(2,893)	253	(2,893)	253	(3,807)
Prepaid expenses and other current assets \| Not Designated as Hedging Instrument \| Foreign Exchange Forward
Derivative [Line Items]
Net fair value	0	2,054	0	2,054	$ 0
Fair Value Hedging \| Foreign Exchange Forward
Derivative [Line Items]
Net gains to other (income) expense, net	$ (15,726)	$ 1,776	$ (13,227)	$ 6,584