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. 15, 2023	Jul. 16, 2022	Jul. 15, 2023	Jul. 16, 2022
Derivative Instruments, Gain (Loss) [Line Items]
Amount of (Loss) or Gain Recognized in AOCI on Derivatives(Effective Portion)	[1]	$ 3,092	$ (16,147)	$ 48	$ (5,197)
Production costs		626,097	586,084	1,426,949	1,310,676
Income before income taxes		84,365	70,369	174,330	180,481
Reclassification out of Accumulated Other Comprehensive Income
Derivative Instruments, Gain (Loss) [Line Items]
Income before income taxes	[2]	(295)	1,630	(1,235)	2,599
Interest Rate Contracts | Reclassification out of Accumulated Other Comprehensive Income
Derivative Instruments, Gain (Loss) [Line Items]
Interest expense	[2]	86	86	201	201
Commodity Contract
Derivative Instruments, Gain (Loss) [Line Items]
Amount of (Loss) or Gain Recognized in AOCI on Derivatives(Effective Portion)	[1]	3,092	(16,147)	48	(5,197)
Commodity Contract | Reclassification out of Accumulated Other Comprehensive Income | Product
Derivative Instruments, Gain (Loss) [Line Items]
Production costs	[2],[3]	$ (381)	$ 1,544	$ (1,436)	$ 2,398

[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).