Earnings Per Share (Detail) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 08, 2013	Sep. 09, 2012	Sep. 08, 2013	Sep. 09, 2012
Earnings Per Share [Abstract]
Net income available to common stockholders - basic and diluted	$ 30,632	$ 25,976	$ 98,322	$ 74,814
Basic weighted average number of shares	55,065,450	56,082,516	55,427,070	56,588,382
Earnings per share - basic	$ 0.56	$ 0.46	$ 1.77	$ 1.32
Diluted weighted average number of shares	57,345,677	58,519,573	57,831,660	59,240,919
Earnings per share - diluted	$ 0.53	$ 0.44	$ 1.70	$ 1.26