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Stock-Based Compensation - Number and Weighted Average Exercise Price of Options Issued and Outstanding under all Stock Option Plans (Detail)
shares in Thousands
 3 Months Ended
Apr. 01, 2017
$ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]  
Options outstanding, beginning of period 8,521
Granted 53
Canceled (47)
Exercised (955)
Options outstanding, end of period 7,572
Options exercisable, end of period 4,615
Options available for grant, end of period 5,800
Average Exercise Price  
Options outstanding, beginning of period | $ / shares $ 28.56
Granted | $ / shares 80.03
Canceled | $ / shares 31.11
Exercised | $ / shares 26.09
Options outstanding, end of period | $ / shares 29.22
Options exercisable, end of period | $ / shares $ 26.83