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Fair Value Measurements - Changes in Fair Value of Recurring Fair Value Measurements Using Significant Unobservable Inputs (Level 3), Consisting of Contingent Consideration Liabilities (Detail) (USD $) In Millions, unless otherwise specified | 12 Months Ended
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Sep. 27, 2014 | Sep. 28, 2013 | Sep. 29, 2012
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |
Balance at beginning of period | $ 3.8 | $ 86.4 | $ 103.8
Contingent consideration recorded at acquisition | 0 | 0.5 | 0
Fair value adjustments | 0 | 11.3 | 38.5
Payments / Accruals | (3.8) | (94.4) | (55.9)
Balance at end of period | $ 0 | $ 3.8 | $ 86.4

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- Definition Business acquisition or combination contingent consideration at fair value. + References No definition available. + Details
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- Definition Payment of contingent consideration liabilities recorded at fair value. + References No definition available. + Details
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- Definition Amount of increase (decrease) in the value of a contingent consideration liability, including, but not limited to, differences arising upon settlement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 4 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e7008-128479 + Details
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- Details
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- Definition Fair value of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
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