Shares Held in Trust Treated as Treasury Shares and Share Repurchase Program - Additional Information (Detail) (USD $) In Millions, except Share data, unless otherwise specified	1 Months Ended		3 Months Ended	9 Months Ended		1 Months Ended	12 Months Ended
	Apr. 30, 2013	May 31, 2012	Sep. 28, 2013	Sep. 28, 2013	Dec. 29, 2012	May 31, 2008 PSU Plan [Member]	Dec. 29, 2012 2010 Equity Incentive Plan [Member]
Shares Held In Trust Treated As Treasury Shares [Line Items]
Common stock shares issued to trustee						2,300,000
Common stock shares distributed from trustee share							700,000
Shares held in trust					0
Stock repurchase authorized, value		$ 35.0
Common stock repurchased			554,769
Common stock repurchased, value			$ 4.5	$ 10.0
Percentage of outstanding common stock available for repurchase	5.00%