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Derivatives and Hedging Activities - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended	6 Months Ended
	Jul. 01, 2012	Jul. 01, 2012	Jun. 30, 2013	Dec. 31, 2012
Derivatives And Hedging Activities [Line Items]
Pre-tax gain in Accumulated Other Comprehensive Income designated and qualified as net investment hedges	$ 2.5	$ 2.5
Proceeds upon the settlement of foreign currency forward contracts		2.7
Derivatives outstanding			$ 0	$ 0

Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.

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