Reclassifications Out of Accumulated Other Comprehensive Loss (Detail) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jul. 18, 2015	Jul. 12, 2014	Jul. 18, 2015	Jul. 12, 2014
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income before income taxes		$ 79,181	$ 63,647	$ 174,137	$ 158,676
Tax benefit		(27,421)	(21,583)	(60,988)	(55,546)
Net income		51,760	42,064	113,149	103,130
Net of tax	[1]	(1,808)	(566)	(4,138)	(3,804)
Gains/Losses on Cash Flow Hedges
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net of tax				(2,838)	(3,514)
Defined Benefit Pension Plan Items
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income before income taxes	[1]	(906)	(203)
Tax benefit	[1]	349	79	814	183
Net income	[1]	(557)	(124)	(1,300)	(290)
Prior-service credits	[1],[2]	108	108	252	252
Actuarial losses	[1],[2]	(1,014)	(311)	(2,366)	(725)
Net of tax				(1,300)	(290)
Income before income taxes	[1]			(2,114)	(473)
Reclassification out of Accumulated Other Comprehensive Income | Gains/Losses on Cash Flow Hedges
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income before income taxes	[1]	(2,034)	(718)
Tax benefit	[1]	783	276	1,778	2,199
Net income	[1]	(1,251)	(442)	(2,838)	(3,514)
Income before income taxes	[1]			(4,616)	(5,713)
Reclassification out of Accumulated Other Comprehensive Income | Gains/Losses on Cash Flow Hedges | Interest Rate Contracts
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest income (expense)	[1]	(57)	(57)	(135)	(135)
Reclassification out of Accumulated Other Comprehensive Income | Gains/Losses on Cash Flow Hedges | Commodity Contract
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Cost of sales	[1],[3]	$ (1,977)	$ (661)	$ (4,481)	$ (5,578)

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

[2] These items are included in the computation of net periodic pension cost. See Note 13, Postretirement Plans, for additional information.

[3] 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.