Effect of Derivative Instruments for Deferred Gains And (Losses) on Closed Contracts and Effective Portion in Fair Value on AOCI, Utilized for Risk Management Purposes (Detail) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jul. 16, 2022	Jul. 17, 2021	Jul. 16, 2022	Jul. 17, 2021
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain or (Loss) Recognized in AOCI on Derivatives(Effective Portion)	[1]	$ (16,417)	$ (4,342)	$ (5,197)	$ 403
Production costs		586,084	504,062	1,310,676	1,147,638
Income before income taxes		70,369	72,944	180,481	167,830
Reclassification out of Accumulated Other Comprehensive Income
Derivative Instruments, Gain (Loss) [Line Items]
Income before income taxes	[2]	1,630	594	2,599	374
Interest Rate Contracts
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain or (Loss) Recognized in AOCI on Derivatives(Effective Portion)	[1]				2,927
Interest Rate Contracts | Reclassification out of Accumulated Other Comprehensive Income
Derivative Instruments, Gain (Loss) [Line Items]
Interest expense	[2]	86	86	201	(78)
Commodity Contract
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain or (Loss) Recognized in AOCI on Derivatives(Effective Portion)	[1]	(16,417)	(4,342)	(5,197)	(2,524)
Commodity Contract | Reclassification out of Accumulated Other Comprehensive Income | Product
Derivative Instruments, Gain (Loss) [Line Items]
Production costs	[2],[3]	$ 1,544	$ 508	$ 2,398	$ 452

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

[2] Amounts in parentheses, if any, indicate credits to determine net income.

[3] Included in materials, supplies, labor and other production costs (exclusive of depreciation and amortization shown separately).