Changes to AOCI, Net of Income Tax, By Component (Detail) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jul. 14, 2018	Jul. 15, 2017	Jul. 14, 2018	Jul. 15, 2017
Accumulated Other Comprehensive Income Loss [Line Items]
Balances				$ 1,250,677
Reclassified to earnings from AOCI	[1]	$ 1,799	$ 1,178	6,688	$ 2,795
Reclassified to retained earnings from AOCI				18,800
Balances		1,297,935		1,297,935
Gains/Losses on Cash Flow Hedges
Accumulated Other Comprehensive Income Loss [Line Items]
Balances				(6,483)	(1,061)
Other comprehensive income before reclassifications				1,661	3,720
Reclassified to earnings from AOCI				423	794
Reclassified to retained earnings from AOCI				(1,709)
Balances		(6,108)	3,453	(6,108)	3,453
Accumulated Defined Benefit Plans Adjustment
Accumulated Other Comprehensive Income Loss [Line Items]
Balances				(78,076)	(82,222)
Other comprehensive income before reclassifications				12,756
Reclassified to earnings from AOCI	[1]	1,673	858	6,265	2,001
Reclassified to retained earnings from AOCI				(17,097)
Balances		(76,152)	(80,221)	(76,152)	(80,221)
Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income Loss [Line Items]
Balances				(84,559)	(83,283)
Other comprehensive income before reclassifications				14,417	3,720
Reclassified to earnings from AOCI				6,688	2,795
Reclassified to retained earnings from AOCI				(18,806)
Balances		$ (82,260)	$ (76,768)	$ (82,260)	$ (76,768)

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