XML 17 R46.htm IDEA: XBRL DOCUMENT

Derivative Instruments - Additional Information (Detail) (USD $)	3 Months Ended
	Mar. 31, 2013	Apr. 01, 2012
Derivatives, Fair Value [Line Items]
Net foreign currency gain (loss)	$ 63,000	$ (638,000)

Aggregate impact of foreign currency derivatives on earnings for the period. Includes impact of foreign currency cash flow hedge ineffectiveness and the ineffectiveness of fair value hedging derivatives and full change in fair value of the foreign currency derivatives not designated as hedging instruments.

+ References+ Details