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Supplementary Balance Sheet Information (Narrative) (Details) (USD $) | 12 Months Ended
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Sep. 28, 2013 | Sep. 29, 2012 | Sep. 24, 2011
Supplementary Balance Sheet Information [Abstract] |  |  |
Workers' compensation per occurrence covered under insurance cost | $ 750,000 |  |
General liability | 500,000 |  |
Medical care benefits per person covered under insurance cost | 325,000 |  |
Self-insurance reserves | 29,400,000 |  |
Self-insurance reserves, current liability | 12,900,000 |  |
Self-insurance reserves, long-term liability | 16,500,000 |  |
Employee insurance expense | $ 31,400,000 | $ 30,600,000 | $ 31,800,000

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- Definition Carrying value as of the balance sheet date of obligations incurred through that date and payable to insurance entities to mitigate potential loss from various risks or to satisfy a promise to provide certain coverage's to employees. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Current Liabilities -URI http://asc.fasb.org/extlink&oid=6509677 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6935-107765 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.20) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6911-107765 + Details
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