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Fair Value of Financial Instruments - Auction Rate Securities (Details) - Auction rate securities - Significant Unobservable Inputs (Level 3) - USD ($) $ in Thousands | 6 Months Ended |  |
--- | --- | --- | ---
Jul. 02, 2016 | Apr. 02, 2016 | Jan. 02, 2016
Weighted Average | Discounted cash flow |  |  |
Quantitative information for Level 3 Fair Value Measurements Assets |  |  |
Estimated yield (as a percent) | 1.02% |  |
Expected holding period | 10 years |  |
Estimated discount rate (as a percent) | 2.89% |  |
Assets and liabilities measured at fair value on recurring basis |  |  |
Quantitative information for Level 3 Fair Value Measurements Assets |  |  |
Fair value balance at the end of the period | $ 6,921 | $ 6,845 | $ 7,126

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- Definition Fair value of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
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