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Derivatives - Fair Value (Details) - USD ($) $ in Thousands	Dec. 29, 2018	Dec. 30, 2017
Derivatives Designated as Hedging Instruments | Swap Agreement 2015 | Other Long-Term Assets
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	$ 148	$ 126
Derivative Asset, Notional Amount	10,000	10,000
Derivatives Designated as Hedging Instruments | Forward Currency-Exchange Contracts | Other Long-Term Assets
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	11	0
Derivative Asset, Notional Amount	842	0
Derivatives Designated as Hedging Instruments | Forward Currency-Exchange Contracts | Other Current Liabilities
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value, Gross Liability	(50)	0
Derivative Liability, Notional Amount	2,946	0
Derivatives Designated as Hedging Instruments | Swap Agreement 2018 | Other long-term liabiltiies
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value, Gross Liability	(352)	0
Derivative Liability, Notional Amount	15,000	0
Derivatives Not Designated as Hedging Instruments | Forward Currency-Exchange Contracts | Other Current Liabilities
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value, Gross Liability	(31)	(16)
Derivative Liability, Notional Amount	1,384	2,049
Derivatives Not Designated as Hedging Instruments | Forward Currency-Exchange Contracts | Other Current Assets
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	9	17
Derivative Asset, Notional Amount	$ 1,192	$ 1,244

X

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
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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.

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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.

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

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No definition available.

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