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Employee Benefits (Details 4) (USD $) In Thousands, unless otherwise specified	Jan. 04, 2014	Dec. 29, 2012	Dec. 31, 2011
Asset allocation structure of the portfolio
Percentage of fair value of total assets by asset category	100.00%	100.00%
Fair value of plan assets by asset category	$ 77,039	$ 67,760	$ 63,896
Equity securities - domestic
Asset allocation structure of the portfolio
Percentage of fair value of total assets by asset category	55.00%	56.00%
Equity securities - domestic | Level 1
Asset allocation structure of the portfolio
Fair value of plan assets by asset category	42,710	37,623
Equity securities - international
Asset allocation structure of the portfolio
Percentage of fair value of total assets by asset category	16.00%	9.00%
Equity securities - international | Level 1
Asset allocation structure of the portfolio
Fair value of plan assets by asset category	12,067	6,304
Fixed income
Asset allocation structure of the portfolio
Percentage of fair value of total assets by asset category	24.00%	31.00%
Fixed income | Level 1
Asset allocation structure of the portfolio
Fair value of plan assets by asset category	18,836	20,848
Other
Asset allocation structure of the portfolio
Percentage of fair value of total assets by asset category	5.00%	4.00%
Other | Level 1
Asset allocation structure of the portfolio
Fair value of plan assets by asset category	$ 3,426	$ 2,985

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Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those non-benefit obligations may be considered as reductions of plan assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920



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-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 30

-Section 35

-Paragraph 50

-URI http://asc.fasb.org/extlink&oid=29635418&loc=d3e12355-114930

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Percentage of fair value of investments (categorized by debt securities, equity securities, real estate and other plan assets) to the fair value of plan assets held.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 5

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e2446-114920



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-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (d)(1)

-URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920

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