Stock-Based Compensation - Summary of Stock Option Activity (Detail)	9 Months Ended
	Sep. 26, 2020 USD ($) $ / shares shares
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Beginning Balance, Shares | shares	181,712
Granted, Shares | shares	109,352
Forfeited, Shares | shares	(8,764)
Exercised, Shares | shares	(6,630)
Ending Balance, Shares | shares	275,670
Options Exercisable, Shares | shares	99,017
Beginning Balance, Weighted Average Exercise Price | $ / shares	$ 70.78
Granted, Weighted Average Exercise Price | $ / shares	63.25
Forfeited, Weighted Average Exercise Price | $ / shares	65.24
Exercised, Weighted Average Exercise Price | $ / shares	56.52
Ending Balance, Weighted Average Exercise Price | $ / shares	68.32
Options Exercisable, Weighted Average Exercise Price | $ / shares	$ 65.99
Ending Balance, Weighted Average Remaining Terms (years)	4 years 8 months 12 days
Options Exercisable, Weighted Average Remaining Terms (years)	2 years 2 months 12 days
Ending Balance, Aggregate Intrinsic Value | $	$ 4,695,637
Options Exercisable, Aggregate Intrinsic Value | $	$ 1,917,351