Basic and Diluted Earnings per Common Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 14, 2018	Jul. 15, 2017	Jul. 14, 2018	Jul. 15, 2017
Earnings Per Share [Abstract]
Net income	$ 45,442	$ 44,740	$ 96,689	$ 105,158
Basic Earnings Per Common Share:
Basic weighted average shares outstanding for common stock	211,048	209,483	210,956	209,277
Basic earnings per common share	$ 0.22	$ 0.21	$ 0.46	$ 0.50
Diluted Earnings Per Common Share:
Basic weighted average shares outstanding for common stock	211,048	209,483	210,956	209,277
Add: Shares of common stock assumed issued upon exercise of stock options and vesting of restricted stock	459	786	487	946
Diluted weighted average shares outstanding for common stock	211,507	210,269	211,443	210,223
Diluted earnings per common share	$ 0.21	$ 0.21	$ 0.46	$ 0.50