Employee Benefit Plan - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 03, 2015	Oct. 04, 2014	Oct. 03, 2015	Oct. 04, 2014
Employee Benefit Plan [Abstract]
Profit Sharing and Retirement Savings Plan, plan expense	$ 31.4	$ 37.3	$ 63.7	$ 77.5