Summary of Information Regarding Stock Options (Detail) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 28, 2020 USD ($) $ / shares shares
Number of Options
Beginning Balance, number of options | shares	44,467
Exercised, number of options | shares	(15,767)
Ending Balance, number of options | shares	28,700
Weighted Average Exercise Price per Share
Beginning Balance, Weighted Average Exercise Price per Share | $ / shares	$ 51.24
Exercised, Weighted Average Exercise Price per Share | $ / shares	47.50
Ending Balance, Weighted Average Exercise Price per Share | $ / shares	$ 53.29
Options Exercisable, Number of Options
Options exercisable at the ending, Number of Options | shares	28,700
Options Exercisable, Weighted Average Exercise Price per Share
Options exercisable at the ending, Weighted Average Exercise Price per Share | $ / shares	$ 53.29
Weighted Average Remaining Contractual Term (years)
Options outstanding at March 28, 2020	2 years 3 months 18 days
Options exercisable at March 28, 2020	2 years 3 months 18 days
Aggregate Intrinsic Value
Options outstanding at March 28, 2020 | $	$ 1,128
Options exercisable at March 28, 2020 | $	$ 1,128