Shares Repurchased Under Stock Repurchase Plan (Detail) - USD ($) $ in Thousands	4 Months Ended	12 Months Ended			13 Months Ended
	Apr. 25, 2015	Jan. 02, 2016	Jan. 03, 2015	Dec. 28, 2013	Jan. 02, 2016
Equity [Abstract]
Total Number of Shares Purchased	318,399	318,399			60,900,000
Total Cost of Shares Purchased	$ 6,858	$ 6,858	$ 38,916	$ 8,819	$ 504,100