Employee Benefit Plan - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jul. 05, 2014	Jun. 29, 2013	Jul. 05, 2014	Jun. 29, 2013
Employee Benefit Plan [Abstract]
Profit Sharing and Retirement Savings Plan, plan expense	$ 22.0	$ 13.1	$ 40.2	$ 26.7