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Exit and Disposal Activities - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended	9 Months Ended
	Sep. 27, 2014	Sep. 28, 2013	Jun. 28, 2014	Sep. 27, 2014	Sep. 28, 2013	Dec. 28, 2013
Restructuring and Related Activities [Abstract]
Restructuring costs incurred	$ 2.0	$ 1.7		$ 5.4	$ 6.4
Expected exit and disposal accrual to be utilized in the current year	2.0		3.4
Exit and disposal cost accrual	$ 6.9		$ 6.2	$ 6.9		$ 4.0

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Discloses the amount charged against the accrued restructuring reserves, or earnings if not previously accrued, during the period for the specified type of restructuring cost.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 420

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (b)

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-Name Staff Accounting Bulletin (SAB)

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-Subsection 3, 4

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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

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Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 420

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