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Sale of Makena - Additional Information (Detail) (USD $) In Millions, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 29, 2012 | Sep. 27, 2014 | Sep. 28, 2013 | Sep. 29, 2012 | Sep. 24, 2011
Regulatory Assets [Abstract] |  |  |  |  |
Amended transaction price as a result of executing amendment |  | $ 199.5 |  |  |
Transaction Price Amounts Received |  |  |  | 12.4 | 84.5
Final payment received | 60.0 |  |  |  |
Gain on net of certain contingent legal fees and amounts due to inventory | $ 53.9 | $ 0 | $ 53.9 | $ 12.4 |

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- Definition Represents total transaction price for the sale of certain intellectual property rights as a result of executing an amendment to the original agreement. + References No definition available. + Details
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- Definition Proceeds from sale of rights and intellectual property. + References No definition available. + Details
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- Definition Represents amount of the transaction price received pursuant to the contractual requirements prior to FDA approval. This amount was recorded as a deferred gain within current liabilities and recorded into income upon FDA approval. + References No definition available. + Details
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- Definition Amount of gain (loss) on sale or disposal of intangible assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.7,9) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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