Gain (Loss) Reclassified From AOCI for Commodity Contracts (Detail) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jul. 11, 2020	Jul. 13, 2019	Jul. 11, 2020	Jul. 13, 2019
Accumulated Other Comprehensive Income Loss [Line Items]
Reclassification from AOCI, Gains and losses on cash flow hedges net of tax		$ (664)	$ 945	$ (1,075)	$ 3,123
Derivative Instruments
Accumulated Other Comprehensive Income Loss [Line Items]
Gross (loss) gain reclassified from AOCI into net income	[1]	(885)	1,265	(1,432)	4,178
Tax expense	[1]	221	(320)	357	(1,055)
Reclassification from AOCI, Gains and losses on cash flow hedges net of tax	[1]	(664)	945	(1,075)	3,123
Commodity Contract | Derivative Instruments
Accumulated Other Comprehensive Income Loss [Line Items]
Gross (loss) gain reclassified from AOCI into net income	[1],[2]	$ (852)	$ 1,298	(1,355)	4,255
Tax expense				339	(1,074)
Reclassification from AOCI, Gains and losses on cash flow hedges net of tax				$ (1,016)	$ 3,181

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

[2] Amounts are presented as an adjustment to reconcile net income to net cash provided by operating activities on the     Condensed Consolidated Statements of Cash Flows.