Reserves and Reserve Activities for 2008 Product Recall (Detail) (Inventory Valuation Product-Recalls, Warranty Reserves, USD $) In Thousands, unless otherwise specified	12 Months Ended						12 Months Ended			12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010	Dec. 29, 2012 Excise tax credit	Dec. 31, 2011 Excise tax credit	Dec. 26, 2009 Excise tax credit	Dec. 29, 2012 Recall-related costs	Dec. 31, 2011 Recall-related costs	Dec. 26, 2009 Recall-related costs	Dec. 29, 2012 Inventory reserves	Dec. 31, 2011 Inventory reserves	Dec. 25, 2010 Inventory reserves	Dec. 25, 2010 Product Returns
Product Liability Contingency [Line Items]
Beginning balance	$ (121)	$ 2,893	$ 2,518	$ (242)	$ (158)	$ (158)	$ 54	$ 255	$ 255	$ 67	$ 2,796	$ 2,421
Changes in Estimates	7	(236)	388		(348)		7	105			7	375	13
Reserves Used	114	(2,778)	(13)	242	264		(61)	(306)		(67)	(2,736)		(13)
Ending balance		$ (121)	$ 2,893		$ (242)	$ (158)		$ 54	$ 255		$ 67	$ 2,796