Weighted-Average Shares - Calculation of Weighted-Average Shares (Detail) In Thousands, unless otherwise specified	3 Months Ended			6 Months Ended
	Jun. 29, 2014	Jun. 30, 2013		Jun. 29, 2014	Jun. 30, 2013
Earnings Per Share [Abstract]
Basic weighted-average common shares outstanding	86,782	87,044	[1]	86,830	86,784	[1]
Effect of dilutive stock options	2,183	1,670		2,282	1,718
Weighted-average common and common-equivalent shares outstanding	88,965	88,714	[1]	89,112	88,502	[1]

[1] Prior period results have been adjusted to reflect the two-for-one stock split effected in the form of a stock dividend which occurred in the third quarter of 2013.