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Financial Instruments Measured at Fair Value - AFS (Details) - USD ($) $ in Thousands | Apr. 02, 2016 | Dec. 31, 2015
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Marubun [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Available For Sale Investment Ownership Percentage | 8.40% |
Cost basis | $ 10,016 | $ 10,016
Available-for-sale Securities, Accumulated Gross Unrealized Gain (Loss), before Tax | 6,027 | 8,708
Fair value | 16,043 | 18,724
Mutual Funds [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Cost basis | 17,423 | 17,389
Available-for-sale Securities, Accumulated Gross Unrealized Gain (Loss), before Tax | 5,071 | 5,065
Fair value | $ 22,494 | $ 22,454

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- Definition Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 25 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=51813488&loc=d3e22054-111558 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (aa) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27232-111563 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=49167202&loc=d3e26610-111562 + Details
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- Definition This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.2) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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