Basic and Diluted Earnings per Common Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	4 Months Ended
	Apr. 23, 2016	Apr. 25, 2015
Earnings Per Share [Abstract]
Net income	$ 59,363	$ 61,389
Basic Earnings Per Common Share:
Basic weighted average shares outstanding for common stock	210,662	209,913
Basic earnings per common share	$ 0.28	$ 0.29
Diluted Earnings Per Common Share:
Basic weighted average shares outstanding for common stock	210,662	209,913
Add: Shares of common stock assumed issued upon exercise of stock options and vesting of restricted stock	2,174	2,805
Diluted weighted average shares outstanding for common stock	212,836	212,718
Diluted earnings per common share	$ 0.28	$ 0.29