Quarterly Results (Parenthetical) (Detail) (USD $)	3 Months Ended			12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Jun. 25, 2011	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010
Quarterly Financial Information [Line Items]
Settlement proceeds			$ 20,500,000
Provisions (benefit) for income taxes from settlement		(2,100,000)
Decrease in refundable deposits for lost kegs and pallets		(1,500,000)		(287,000)	(1,900,000)
Promotional expense	$ 3,500,000			$ 78,300,000	$ 73,400,000	$ 66,100,000