Restructuring and Asset Impairment - Schedule of Restructuring and Asset Impairment, Net (Detail) - USD ($) $ in Thousands		3 Months Ended			6 Months Ended
		Jul. 16, 2022		Jul. 17, 2021	Jul. 16, 2022		Jul. 17, 2021
Restructuring Cost And Reserve [Line Items]
Gain on sales of assets related to closed facilities					$ (131)		$ (262)
Provision for severance					9
Business Restructuring Reserves [Member]
Restructuring Cost And Reserve [Line Items]
Asset impairment charges	[1]	$ 3,480		$ 2,820	3,480		3,576
Provision for closing charges				827			1,410
Gain on sales of assets related to closed facilities	[2]	615		326	615		2,185
Provision for severance				40	9		124
Other costs (income) associated with site closures	[3]	(106)		(24)	(75)		310
Lease termination adjustments		(102)	[4]		(102)	[4]
Changes in estimates		(46)	[5]		(73)	[5]	(59)	[5]
Restructuring and asset impairment		$ 2,611		$ 3,337	$ 2,624		$ 3,176

[1] (a) Asset impairment charges in the current year related to restructuring of the Retail segment's e-commerce delivery model. In the prior year, asset impairment charges were incurred primarily in the Retail segment and relate to prior year store closures and previously closed locations.

[2] (b) Gain on sales of assets in the current year primarily relates to the sales of real property of previously closed locations within the Retail segment. In the prior year, the gain on sales of assets primarily relates to the sales of pharmacy customer lists related to store closings in the Retail segment.

[3] (c) Other income net activity in the current year primarily relate to restructuring activity within the Food Distribution segment and Retail store closings. In the prior year, other income net activity primarily related to Retail store closings and restructuring activity.

[4] (d) Lease termination adjustments relate to the gain recognized to terminate a lease agreement in the current year, which includes a $16 thousand write-off of the lease liability and $86 thousand reduction of lease ancillary costs included in the reserve for closed properties.

[5] (e) Changes in estimates primarily relate to revised estimates for turnover and other lease ancillary costs associated with previously closed locations, which were generally lower than the initial estimates at certain properties in all years presented.