Summary of Company's Balance Sheet Related Pension and Other Postretirement Benefit Plan (Detail) - USD ($) $ in Thousands	Dec. 28, 2024	Dec. 30, 2023
Pension and Other Postretirement Benefits Cost (Reversal of Cost) [Abstract]
Noncurrent benefit asset	$ 6,869	$ 6,494
Current benefit liability	703	699
Noncurrent benefit liability	5,511	5,798
AOCI, net of tax	$ (257)	$ (342)