Derivative Instruments - Additional Information (Detail) (USD $)	9 Months Ended
Sep. 28, 2013 Minimum	Sep. 28, 2013 Maximum	Sep. 28, 2013 Foreign currency forward contracts	Dec. 31, 2012 Foreign currency forward contracts
Derivative [Line Items]
Maturity of foreign currency derivative	30 days	60 days
Notional amount of foreign currency derivative			$ 1,700,000	$ 491,000

Average period remaining before foreign currency exchange rate derivatives mature or expire, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

No definition available.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration