Employee Stock Plans - Summary for PSU awards Company used for the Monte Carlo simulation (Detail) - Performance Shares - $ / shares	12 Months Ended
	Dec. 27, 2024	Dec. 29, 2023	Dec. 30, 2022
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock price	$ 40.82	$ 28.19	$ 32.17
Term	2.68 years	2.68 years	2.68 years
Expected volatilities	50.60%	57.40%	65.90%
Risk-free rate	4.80%	3.90%	2.70%