Computation of Basic and Diluted Net Income Per Common Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Apr. 03, 2016	Apr. 05, 2015
Net Income Loss Per Common Share
Net income for basic and diluted net income per share	$ 49,986	$ 32,787
Weighted average common shares-basic	204,271	217,187
Employee stock purchase plan	9	28
Dilutive potential common shares	1,461	1,625
Weighted average common shares-diluted	205,732	218,812
Net income per common share-basic	$ 0.24	$ 0.15
Net income per common share-diluted	$ 0.24	$ 0.15
Restricted Stock Units
Net Income Loss Per Common Share
Incremental shares attributable to share based payment arrangements	965	901
Stock Options
Net Income Loss Per Common Share
Incremental shares attributable to share based payment arrangements	487	696