Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Includes, but is not limited to, one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, and relocating employees, and termination benefits associated with an ongoing benefit arrangement. Excludes expenses associated with special or contractual termination benefits, a discontinued operation or an asset retirement obligation.

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Amount of expenses for special or contractual termination benefits provided to current employees involuntarily terminated under a benefit arrangement associated exit or disposal activities pursuant to an authorized plan. Excludes expenses related to one-time termination benefits, a discontinued operation or an asset retirement obligation.

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Restructuring and Impairments - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended	3 Months Ended	6 Months Ended	9 Months Ended
	Sep. 29, 2013	Sep. 30, 2012	Sep. 29, 2013	Sep. 30, 2012	Sep. 30, 2012 2012 Infrastructure Realignment Program	Apr. 01, 2012 2012 Infrastructure Realignment Program	Sep. 30, 2012 2012 Infrastructure Realignment Program	Apr. 01, 2012 2010 Infrastructure Realignment Program	Jul. 01, 2012 2010 Infrastructure Realignment Program	Sep. 30, 2012 2011 Infrastructure Realignment Program
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment charges, net of releases	$ 3.5	$ 3.4	$ 8.1	$ 6.3
Restructuring and impairment charges, employee separation costs					2.8		1.7	0.1	0.1	0.9
Restructuring and impairment charges, lease termination costs					0.6
Restructuring and impairment charges, facility closure costs						$ 0.4