Reconciliation of Share Amount Used in Computation of Basic and Diluted Earnings Per Share (EPS) (Detail) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 28, 2013	Sep. 29, 2012	Sep. 28, 2013	Sep. 29, 2012
Weighted shares outstanding:
Basic-weighted common shares outstanding	138,904	137,453	139,061	137,119
Weighted common shares assumed upon exercise of stock options and vesting of restricted common stock	578	1,046	627	1,128
Diluted-weighted common shares and common shares equivalent outstanding	139,482	138,499	139,688	138,247