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Goodwill and Intangible Assets (Schedule of Intangible Assets Excluding Goodwill) (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Sep. 30, 2016 | Oct. 02, 2015
Intangible Assets Excluding Goodwill [Line Items] |  |
Gross carrying amount | $ 213.9 | $ 158.5
Accumulated amortization | (146.9) | (113.5)
Net carrying amount | 67.0 | 45.0
Trademarks [Member] |  |
Intangible Assets Excluding Goodwill [Line Items] |  |
Indefinite-lived trademarks, gross carrying amounts | 1.6 | 1.6
Indefinite-lived intangible assets, net carrying amount | $ 1.6 | 1.6
Customer Relationships [Member] |  |
Intangible Assets Excluding Goodwill [Line Items] |  |
Weighted average amortization period remaining (years) | 4 years 2 months 12 days |
Gross carrying amount | $ 78.5 | 57.2
Accumulated amortization | (57.7) | (48.7)
Net carrying amount | $ 20.8 | 8.5
Developed Technology and Other [Member] |  |
Intangible Assets Excluding Goodwill [Line Items] |  |
Weighted average amortization period remaining (years) | 5 years 9 months 18 days |
Gross carrying amount | $ 133.8 | 99.7
Accumulated amortization | (89.2) | (64.8)
Net carrying amount | $ 44.6 | $ 34.9

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