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Fair Value Measurements Fair Value Measurements Not Practicable (Details) - USD ($) | Mar. 27, 2016 | Sep. 27, 2015
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Fair Value, Estimate Not Practicable, Financial Statement Captions [Line Items] |  |
Fair Value, Estimate Not Practicable, Investments | $ 6,359,000 |
Debt, Long-term and Short-term, Combined Amount | $ 656,498,000 | $ 725,872,000

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- Definition Represents the aggregate of total long-term debt, including current maturities and short-term debt. + References No definition available. + Details
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Period Type: | instant

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition This item represents a financial instrument (as defined) for which it is not practicable to estimate fair value. Such disclosure may be for an individual financial instrument or a class of financial instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 25 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=51813488&loc=d3e22054-111558 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Subparagraph a, f, g -Article 7 + Details
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