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Fair Value Measurements (Assets) (Details) - USD ($) $ in Thousands	Oct. 03, 2015	Jan. 03, 2015
Assets Fair Value Disclosure [Abstract]
Derivative financial instruments	$ (920)	$ (1,374)
Fair Value, Measurements, Recurring [Member]
Assets Fair Value Disclosure [Abstract]
Derivative financial instruments	(920)	(1,374)
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Assets Fair Value Disclosure [Abstract]
Derivative financial instruments	0	0
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member]
Assets Fair Value Disclosure [Abstract]
Derivative financial instruments	(920)	(1,374)
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Assets Fair Value Disclosure [Abstract]
Derivative financial instruments	0	0
Fair Value, Measurements, Recurring [Member] | Government Securities [Member]
Assets Fair Value Disclosure [Abstract]
Available-for-sale securities, fair value disclosure	9,946	9,835
Fair Value, Measurements, Recurring [Member] | Government Securities [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Assets Fair Value Disclosure [Abstract]
Available-for-sale securities, fair value disclosure	0	0
Fair Value, Measurements, Recurring [Member] | Government Securities [Member] | Significant Other Observable Inputs (Level 2) [Member]
Assets Fair Value Disclosure [Abstract]
Available-for-sale securities, fair value disclosure	9,946	9,835
Fair Value, Measurements, Recurring [Member] | Government Securities [Member] | Significant Unobservable Inputs (Level 3) [Member]
Assets Fair Value Disclosure [Abstract]
Available-for-sale securities, fair value disclosure	0	0
Fair Value, Measurements, Recurring [Member] | Corporate Bonds [Member]
Assets Fair Value Disclosure [Abstract]
Available-for-sale securities, fair value disclosure	2,219	2,205
Fair Value, Measurements, Recurring [Member] | Corporate Bonds [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Assets Fair Value Disclosure [Abstract]
Available-for-sale securities, fair value disclosure	0	0
Fair Value, Measurements, Recurring [Member] | Corporate Bonds [Member] | Significant Other Observable Inputs (Level 2) [Member]
Assets Fair Value Disclosure [Abstract]
Available-for-sale securities, fair value disclosure	2,219	2,205
Fair Value, Measurements, Recurring [Member] | Corporate Bonds [Member] | Significant Unobservable Inputs (Level 3) [Member]
Assets Fair Value Disclosure [Abstract]
Available-for-sale securities, fair value disclosure	$ 0	$ 0

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Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

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

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