Summary of Significant Accounting Policies - Schedule of Change in Accumulated Other Comprehensive Income (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 29, 2013	Jun. 30, 2012	Jun. 29, 2013	Jun. 30, 2012
Statement Of Income And Comprehensive Income [Abstract]
Accumulated other comprehensive income, beginning of period			$ 3,542
Foreign currency translation adjustments	(812)	356	(659)	(57)
Accumulated other comprehensive income, end of period	$ 2,883		$ 2,883

Accumulated adjustment, net of tax, that results from the process of translating subsidiary financial statements and foreign equity investments into the reporting currency from the functional currency of the reporting entity, net of reclassification of realized foreign currency translation gains or losses.

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