Computation of Basic and Diluted Net Income Per Common Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 02, 2016	Oct. 04, 2015	Oct. 02, 2016	Oct. 04, 2015
Net Income Loss Per Common Share
Net income (loss) for basic and diluted net income per share	$ 63,794	$ 71,453	$ (109,767)	$ 207,118
Weighted average common shares-basic	202,211	210,032	203,167	213,688
Employee stock purchase plan	15	23		40
Dilutive potential common shares	1,718	1,704		1,660
Weighted average common shares-diluted	203,929	211,736	203,167	215,348
Net income (loss) per common share-basic	$ 0.32	$ 0.34	$ (0.54)	$ 0.97
Net income (loss) per common share-diluted	$ 0.31	$ 0.34	$ (0.54)	$ 0.96
Restricted Stock Units
Net Income Loss Per Common Share
Incremental shares attributable to share based payment arrangements	1,282	1,103		994
Stock Options
Net Income Loss Per Common Share
Incremental shares attributable to share based payment arrangements	421	578		626