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Employee Benefits (Details 4) (USD $) In Thousands, unless otherwise specified | Jan. 04, 2014 | Dec. 29, 2012 | Dec. 31, 2011
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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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- Definition 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 Reference 2: http://www.xbrl.org/2003/role/presentationRef -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 + Details
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- Definition 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 Reference 2: http://www.xbrl.org/2003/role/presentationRef -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 + Details
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