Earnings Per Share - Computation of Basic EPS and Diluted EPS (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 29, 2013	Jun. 30, 2012	Jun. 29, 2013	Jun. 30, 2012
Earnings Per Share [Abstract]
Net income	$ 69,686	$ 61,274	$ 119,445	$ 151,247
Weighted average shares	152,511	151,428	151,799	151,110
Basic EPS (in dollars per share)	$ 0.46	$ 0.40	$ 0.79	$ 1.00
Weighted average shares, including the dilutive effect of stock-based awards (2,353 and 2,592 for the thirteen weeks ended June 29, 2013 and June 30, 2012, respectively, and 2,940 and 3,325 for the twenty-six weeks ended June 29, 2013 and June 30, 2012, respectively)	154,864	154,020	154,739	154,435
Diluted EPS (in dollars per share)	$ 0.45	$ 0.40	$ 0.77	$ 0.98