Capital Stock - Summary of Stock Option Activity (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 25, 2021	Dec. 26, 2020
Shares
Beginning balance (in shares)	233,396	250,779	181,712
Granted (in shares)	79,749	59,578	109,352
Exercised (in shares)	(32,201)	(67,504)	(31,521)
Expired (in shares)	(663)
Canceled (in shares)	(12,162)	(9,457)	(8,764)
Ending balance (in shares)	268,119	233,396	250,779
Ending balance, exercisable (in shares)	98,600
Option Price per Share
Expired, option price per share (dollars per share)	$ 101.45
Weighted Average Price
Beginning balance, weighted average price (dollars per share)	77.85	$ 70.21	$ 70.78
Granted, weighted average price (dollars per share)	96.96	101.36	63.25
Exercised, weighted average price (dollars per share)	71.74	70.04	50.77
Expired, weighted average price (dollars per share)	101.45
Cancelled, weighted average price (dollars per share)	82.19	79.02	65.24
Ending balance, weighted average price (dollars per share)	84.03	77.85	70.21
Exercisable at December 31, 2022, weighted average price (dollars per share)	$ 76.32
Balance at December 31, 2022, weighted average remaining term (in years)	6 years 2 months 12 days
Exercisable at December 31, 2022 , weighted average remaining term (in years)	3 years 10 months 24 days
Balance at December 31, 2022, aggregate intrinsic value	$ 1,572,000
Exercisable at December 31, 2022, aggregate intrinsic value	$ 796,000
Minimum
Option Price per Share
Beginning balance, option price per share (dollars per share)	$ 61.68	41.59	41.59
Granted, option price per share (dollars per share)	83.81	95.98	61.68
Exercised, option price per share (dollars per share)	61.68	41.59	41.59
Cancelled, option price per share (dollars per share)	61.68	61.68	61.68
Ending balance, option price per share (dollars per share)	61.68	61.68	41.59
Weighted Average Price
Exercisable at December 31, 2022, weighted average price (dollars per share)	61.68
Maximum
Option Price per Share
Beginning balance, option price per share (dollars per share)	103.61	84.93	82.94
Granted, option price per share (dollars per share)	111.53	103.61	83.06
Exercised, option price per share (dollars per share)	83.06	82.94	82.94
Cancelled, option price per share (dollars per share)	101.45	101.45	74.21
Ending balance, option price per share (dollars per share)	111.53	$ 103.61	$ 84.93
Weighted Average Price
Exercisable at December 31, 2022, weighted average price (dollars per share)	$ 103.61