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Goodwill and Intangible Assets - Additional Information (Detail) (USD $) In Millions, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jun. 28, 2014 | Mar. 29, 2014 | Jun. 29, 2013 | Jun. 28, 2014 | Jun. 29, 2013
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Impairment charges |  | $ 27.1 |  |  |
Impairment of intangible assets | 0 |  | 1.7 | 26.6 | 1.7
Developed Technology [Member] |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Impairment charges |  | 26.6 |  |  |
Impairment of intangible assets |  |  |  |  | 1.7
Trade Names [Member] |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Impairment charges |  | $ 0.5 |  |  |

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- Definition The amount of impairment loss recognized in cost of product sales in the period resulting from the write-down of the carrying amount of an intangible asset to fair value. + References No definition available. + Details
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- Details
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- Definition The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of a finite-lived intangible asset to fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16373-109275 + Details
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