Weighted-Average Shares - Calculation of Weighted-Average Shares (Detail) - shares shares in Thousands	3 Months Ended		9 Months Ended
	Oct. 04, 2015	Sep. 28, 2014	Oct. 04, 2015	Sep. 28, 2014
Earnings Per Share [Abstract]
Basic weighted-average common shares outstanding	86,303	86,963	86,756	86,875
Effect of dilutive stock options	1,473	2,204	1,803	2,270
Weighted-average common and common-equivalent shares outstanding	87,776	89,167	88,559	89,145