Basic and Diluted Earnings per Common Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 13, 2019	Jul. 14, 2018	Jul. 13, 2019	Jul. 14, 2018
Earnings Per Share [Abstract]
Net income	$ 53,095	$ 45,442	$ 118,961	$ 96,689
Basic Earnings Per Common Share:
Basic weighted average shares outstanding for common stock	211,685	211,048	211,517	210,956
Basic earnings per common share	$ 0.25	$ 0.22	$ 0.56	$ 0.46
Diluted Earnings Per Common Share:
Add: Shares of common stock assumed issued upon exercise of stock options and vesting of restricted stock	272	459	407	487
Diluted weighted average shares outstanding for common stock	211,957	211,507	211,924	211,443
Diluted earnings per common share	$ 0.25	$ 0.21	$ 0.56	$ 0.46