Gross Carrying Amount and Accumulated Amortization of Intangible Assets (Detail) (USD $) In Millions, unless otherwise specified	Dec. 27, 2013	Sep. 27, 2013
Finite Lived Intangible Assets [Line Items]
Accumulated amortization	$ (52.4)	$ (53.1)
Net carrying amount	23.4	23.4
Acquired existing technology
Finite Lived Intangible Assets [Line Items]
Finite Lived Intangible Assets Gross	37.5	36.6
Patents, licenses and other
Finite Lived Intangible Assets [Line Items]
Finite Lived Intangible Assets Gross	27.4	29.0
Customer contracts and supplier relationship
Finite Lived Intangible Assets [Line Items]
Finite Lived Intangible Assets Gross	$ 10.9	$ 10.9

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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=26713463&loc=d3e16323-109275

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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

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- Definition

Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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