Option Activity (Detail) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 29, 2023 USD ($) $ / shares shares	[1]
Share-Based Payment Arrangement [Abstract]
Number of shares outstanding, Options Balance | shares	441,227
Number of shares outstanding, Options Granted | shares	30,000
Number of shares outstanding, Options forfeited and expired | shares	0
Exercise of stock options (in shares) | shares	(7,992)
Number of shares outstanding, Options Balance | shares	463,235
Number of shares outstanding, Exercisable | shares	378,444
Weighted-average exercise price, Options Balance | $ / shares	$ 47.38
Weighted-average exercise price, Options Granted | $ / shares	107.31
Weighted-average exercise price, Options forfeited and expired | $ / shares	0
Weighted-average exercise price, Options Exercised | $ / shares	12.51
Weighted-average exercise price, Options Balance | $ / shares	51.86
Weighted-average exercise price, Exercisable | $ / shares	$ 42.19
Weighted average remaining contractual term, Balance	4 years 9 months 10 days
Weighted average remaining contractual term, Exercisable	4 years 14 days
Aggregate intrinsic value, Balance | $	$ 17,543
Aggregate intrinsic value, Exercisable | $	$ 17,453

[1] Does not include restricted stock or employee stock purchase plans.