Changes to Accumulated Other Comprehensive Loss, Net of Income Tax, By Component (Detail) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jul. 16, 2016	Jul. 18, 2015	Jul. 16, 2016	Jul. 18, 2015
Accumulated Other Comprehensive Income Loss [Line Items]
Balances				$ 1,243,082
Other comprehensive income before reclassifications				(37,344)	$ 1,390
Reclassified to earnings from accumulated other comprehensive loss	[1]	$ 4,320	$ 1,808	6,516	4,138
Balances		1,152,790		1,152,790
Gains/Losses on Cash Flow Hedges
Accumulated Other Comprehensive Income Loss [Line Items]
Balances				(10,190)	(11,408)
Other comprehensive income before reclassifications				(937)	1,390
Reclassified to earnings from accumulated other comprehensive loss				1,946	2,838
Balances		(9,181)	(7,180)	(9,181)	(7,180)
Accumulated Defined Benefit Plans Adjustment
Accumulated Other Comprehensive Income Loss [Line Items]
Balances				(86,610)	(86,612)
Other comprehensive income before reclassifications				(36,407)
Reclassified to earnings from accumulated other comprehensive loss	[1]	3,517	557	4,570	1,300
Balances		(118,447)	(85,312)	(118,447)	(85,312)
Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income Loss [Line Items]
Balances				(96,800)	(98,020)
Balances		$ (127,628)	$ (92,492)	$ (127,628)	$ (92,492)

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