Benefits Expected to be Paid from Plans Assets (Parenthetical) (Detail) - Lump Sums Plan No. 2 - Includes Plan No 1 and No 2 Single Lump Sum - USD ($) $ in Millions	12 Months Ended
	Dec. 28, 2024	Dec. 30, 2023	Dec. 31, 2022
Schedule of Pension and Other Postretirement Benefits Expected Benefit Payments [Line Items]
Distributions from existing plan assets			$ 0.9
Distributions from existing plan assets		$ 1.7
Distributions from existing plan assets	$ 2.0