Components of, and Changes in Restructuring Accruals (Detail) - USD ($) $ in Thousands		4 Months Ended
		Apr. 18, 2020	Apr. 20, 2019
Restructuring Cost And Reserve [Line Items]
Liability balance, beginning balance		$ 1,624	$ 401
Charges			188
Cash payments		(1,025)	(415)
Liability balance, ending balance	[1]	599	174
VSIP
Restructuring Cost And Reserve [Line Items]
Liability balance, beginning balance		174	174
Cash payments		(174)
Liability balance, ending balance	[1]		174
Employee Termination Benefits
Restructuring Cost And Reserve [Line Items]
Liability balance, beginning balance	[2]	1,450	227
Charges	[2]		(23)
Cash payments	[2]	(851)	(204)
Liability balance, ending balance	[1],[2]	$ 599
Reorganization Costs
Restructuring Cost And Reserve [Line Items]
Charges	[3]		211
Cash payments	[3]		$ (211)

[1] Recorded in the other accrued current liabilities line item of our Condensed Consolidated Balance Sheets.

[2] Employee termination benefits are not related to the VSIP.

[3] Reorganization costs include employee relocation expenses.