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Goodwill and Intangible Assets (Schedule of Intangible Assets Excluding Goodwill) (Details) (USD $) In Millions, unless otherwise specified | 12 Months Ended |
--- | --- | ---
Sep. 28, 2012 | Sep. 27, 2013
Intangible Assets Excluding Goodwill [Line Items] |  |
Intangible Assets Gross Excluding Goodwill | $ 175.7 | $ 175.3
Intangible Assets Excluding Goodwill Accumulated Amortization | 81.7 | 110.5
Intangible Assets, Net (Excluding Goodwill) | 94.0 | 64.8
Customer Relationships [Member] |  |
Intangible Assets Excluding Goodwill [Line Items] |  |
Amortized Intangible Assets, Weighted Average Useful Life | 2 years 11 months |
Intangible Assets, Gross Carrying Amount | 78.7 | 78.7
Amortized Intangible Assets, Accumulated Amortization | 36.2 | 49.3
Intangible Assets, Net Carrying Amount | 42.5 | 29.4
Developed Technology and Other [Member] |  |
Intangible Assets Excluding Goodwill [Line Items] |  |
Amortized Intangible Assets, Weighted Average Useful Life | 3 years 1 month |
Intangible Assets, Gross Carrying Amount | 89.3 | 88.9
Amortized Intangible Assets, Accumulated Amortization | 42.3 | 55.3
Intangible Assets, Net Carrying Amount | 47.0 | 33.6
In-Process Research and Development [Member] |  |
Intangible Assets Excluding Goodwill [Line Items] |  |
Amortized Intangible Assets, Weighted Average Useful Life | 8 months |
Intangible Assets, Gross Carrying Amount | 6.1 | 6.1
Amortized Intangible Assets, Accumulated Amortization | 3.2 | 5.9
Intangible Assets, Net Carrying Amount | 2.9 | 0.2
Trademarks [Member] |  |
Intangible Assets Excluding Goodwill [Line Items] |  |
Indefinite-Lived Trademarks | 1.6 | 1.6
Indefinite-lived Intangible Assets | $ 1.6 | $ 1.6

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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -Subparagraph a(1) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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