Commitments and Contingencies - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	Sep. 28, 2013 LegalMatter	Dec. 31, 2012
Loss Contingencies [Line Items]
Number of asbestos-related lawsuits pending	1,800
Number of asbestos-related claims outstanding	2,100
Estimated liability for asbestos-related claims	$ 266.3	$ 278.9
Estimated receivable for asbestos-related insurance recoveries	130.1	131.0
Environmental reserve	41.4	49.2
Letters of credit outstanding	$ 478.9	$ 493.2

Total costs accrued as of the balance sheet date for environmental loss contingencies.

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