Components of Net Periodic Benefit Cost (Detail) - Pension plans - USD ($) $ in Thousands	4 Months Ended
	Apr. 19, 2025	Apr. 20, 2024
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 187	$ 224
Interest cost	357	362
Expected return on plan assets	(425)	(494)
Amortization of prior service cost (credit)	8	18
Amortization of net (gain) loss	0	13
Total net periodic pension cost (credit)	$ 127	$ 123