Components of, and Changes in Restructuring Accruals (Detail) - USD ($) $ in Thousands		9 Months Ended
		Oct. 05, 2019	Oct. 06, 2018
Restructuring Cost And Reserve [Line Items]
Liability balance, beginning balance		$ 401	$ 25,490
Charges		1,212	2,383
Cash payments		(897)	(27,639)
Liability balance, ending balance	[1]	716	234
VSIP
Restructuring Cost And Reserve [Line Items]
Liability balance, beginning balance		174	25,022
Charges			(597)
Cash payments			(24,234)
Liability balance, ending balance	[1]	174	191
Employee Termination Benefits
Restructuring Cost And Reserve [Line Items]
Liability balance, beginning balance	[2]	227	468
Charges	[2]	959	344
Cash payments	[2]	(644)	(769)
Liability balance, ending balance	[1],[2]	542	43
Reorganization Costs
Restructuring Cost And Reserve [Line Items]
Charges	[3]	253	2,636
Cash payments	[3]	$ (253)	$ (2,636)

[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