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Restructuring - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended
	Jun. 29, 2013	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
Restructuring And Related Activities [Abstract]
Charges related primarily to employee redundancy costs	$ 2.0	$ 2.0
Amount owed under restructuring plan		0	0	0
Intangible asset impairments				1.4
Asset impairments		$ 0	$ 0	$ 0.6

- Definition

The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale).

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- Definition

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.

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