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Computation of Basic and Diluted Net Income Per Common Share (Detail) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 3 Months Ended
Apr. 02, 2017
Apr. 03, 2016
Net Income Loss Per Common Share    
Net income for basic and diluted net income per share $ 85,221 $ 49,986
Weighted average common shares-basic 200,005 204,271
Employee stock purchase plan 8 9
Dilutive potential common shares 1,931 1,461
Weighted average common shares-diluted 201,936 205,732
Net income per common share-basic $ 0.43 $ 0.24
Net income per common share-diluted $ 0.42 $ 0.24
Restricted Stock Units    
Net Income Loss Per Common Share    
Incremental shares attributable to share based payment arrangements 1,533 965
Stock Options    
Net Income Loss Per Common Share    
Incremental shares attributable to share based payment arrangements 390 487