Restructuring activities - Components of, and Changes in Restructuring Accruals (Detail) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jul. 13, 2024		Jul. 15, 2023	Jul. 13, 2024		Jul. 15, 2023
Restructuring Cost And Reserve [Line Items]
Liability balance, beginning balance				$ 1,429
Charges	$ 6,805	[1]	$ 2,499	7,403	[1]	$ 6,694
Cash payments				(8,344)
Liability balance, ending balance	488			488
Employee Severance | 2023 VSIP
Restructuring Cost And Reserve [Line Items]
Liability balance, beginning balance				1,429
Charges			$ 1,302	0		$ 5,229
Cash payments				(1,429)
Liability balance, ending balance	0			0
Employee Severance | 2024 RIF
Restructuring Cost And Reserve [Line Items]
Liability balance, beginning balance				0
Charges	6,805			7,403
Cash payments				(6,915)
Liability balance, ending balance	$ 488			$ 488

[1] Presented on our Condensed Consolidated Statements of Income.