Stock-Based Compensation Expense - Summary of Stock Option Activity (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	9 Months Ended
	Oct. 02, 2016	Oct. 02, 2016
Shares (in thousands)
Outstanding, shares	6,644
Granted, shares	1,751
Exercised, shares	(1,224)
Forfeited or expired, shares	(141)
Outstanding, shares	7,030
Exercisable as of reporting date, shares		2,700
Options vested or expected to vest as of reporting date, shares		6,391
Weighted- Average Exercise Price
Outstanding, in dollars per share	$ 28.27
Granted, in dollars per share	34.10
Exercised, in dollars per share	18.87
Forfeited or expired, in dollars per share	36.97
Outstanding, in dollars per share	31.18
Outstanding	$ 28.27	$ 31.18
Exercisable as of reporting date, Weighted-Average Exercise Price, in dollars per share		23.01
Weighted- Average Remaining Contractual Term (in years)		$ 30.59
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Outstanding, in years	7 years 4 months 24 days
Exercisable, in years	5 years 7 months 6 days
Options vested or expected to vest, in years	7 years 2 months 12 days
Aggregate Intrinsic Value (in thousands)
Outstanding, in dollars		$ 152,398
Exercisable, in dollars		80,589
Options vested or expected to vest, in dollars		$ 142,335