Changes to AOCI, Net of Income Tax, By Component (Detail) - USD ($) $ in Thousands		4 Months Ended
		Apr. 19, 2025	Apr. 20, 2024
Accumulated Other Comprehensive Income Loss [Line Items]
Balances		$ 1,410,114	$ 1,351,782
Other comprehensive income before reclassifications	[1]	1,086	566
Reclassified to earnings from AOCI	[2]	(580)	477
Balances		1,415,625	1,375,880
Cash Flow Hedge Items
Accumulated Other Comprehensive Income Loss [Line Items]
Balances		7,087	963
Other comprehensive income before reclassifications		(1,086)	(566)
Reclassified to earnings from AOCI		(489)	550
Balances		5,512	947
Defined Benefit Pension Plan Items
Accumulated Other Comprehensive Income Loss [Line Items]
Balances		(257)	(342)
Reclassified to earnings from AOCI	[2]	(91)	(73)
Balances		(348)	(415)
Accumulated Other Comprehensive Loss
Accumulated Other Comprehensive Income Loss [Line Items]
Balances		6,830	621
Other comprehensive income before reclassifications		(1,086)	(566)
Reclassified to earnings from AOCI		(580)	477
Balances		$ 5,164	$ 532

[1] Amounts in parentheses indicate debits to determine net income.

[2] Amounts in parentheses indicate debits to determine net income.