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Fair Value Measurements (Schedule of the Location and Amount of Income or Loss Recognized for Changes in Fair Value of Financial Instruments) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Sep. 30, 2016 | Oct. 02, 2015 | Oct. 03, 2014
Rabbi trust assets (Assets) [Member] | Other (Income) Expense [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Changes in fair value, (income) loss | $ (624) | $ 638 | $ (703)

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- Definition For each line item in the statement of financial position, the amounts of gains and losses from fair value changes included in earnings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6957238&loc=d3e14172-108612 + Details
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