Components of, and Changes in Restructuring Accruals (Detail) $ in Thousands	4 Months Ended
	Apr. 21, 2018 USD ($)
Restructuring Cost And Reserve [Line Items]
Liability balance at December 30, 2017	$ 25,490
Charges	1,259
Cash payments	(26,032)
Liability balance at April 21, 2018	717	[1]
Reorganization Costs
Restructuring Cost And Reserve [Line Items]
Charges	1,512	[2]
Cash payments	(1,512)	[2]
Employee Termination Benefits
Restructuring Cost And Reserve [Line Items]
Liability balance at December 30, 2017	468	[3]
Charges	344	[3]
Cash payments	(608)	[3]
Liability balance at April 21, 2018	204	[1],[3]
VSIP
Restructuring Cost And Reserve [Line Items]
Liability balance at December 30, 2017	25,022
Charges	(597)
Cash payments	(23,912)
Liability balance at April 21, 2018	$ 513	[1]

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

[2] Reorganization costs include employee relocation expenses.

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