Stock-Based Compensation Expense - Summary of Stock Option Activity (Detail) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 29, 2020 USD ($) $ / shares shares
Shares (in thousands)
Outstanding, shares | shares	12,899
Granted, shares | shares	883
Exercised, shares | shares	(463)
Forfeited or expired, shares | shares	(83)
Outstanding, shares | shares	13,236
Exercisable as of reporting date, shares | shares	6,652
Options vested or expected to vest as of reporting date, shares | shares	12,139
Weighted- Average Exercise Price
Outstanding, shares | $ / shares	$ 37.95
Granted, in dollars per share | $ / shares	50.94
Exercised, in dollars per share | $ / shares	21.52
Forfeited or expired, in dollars per share | $ / shares	50.10
Outstanding, shares | $ / shares	39.32
Exercisable as of reporting date, Weighted-Average Exercise Price, in dollars per share | $ / shares	30.93
Weighted- Average Remaining Contractual Term (in years) | $ / shares	$ 38.37
Weighted- Average Remaining Contractual Term (in years)
Outstanding, in years	7 years 1 month 13 days
Exercisable, in years	6 years 3 days
Options vested or expected to vest, in years	6 years 11 months 23 days
Aggregate Intrinsic Value (in thousands)
Outstanding, in dollars | $	$ 113,087
Exercisable, in dollars | $	98,637
Options vested or expected to vest, in dollars | $	$ 112,251