Business Segments and Geographic Information - Revenues by Geography (Detail)	3 Months Ended
	Dec. 28, 2024	Dec. 30, 2023
Schedule Of Geographical Segments [Line Items]
Revenues	100.00%	100.00%
United States
Schedule Of Geographical Segments [Line Items]
Revenues	74.20%	74.40%
Europe
Schedule Of Geographical Segments [Line Items]
Revenues	14.60%	14.10%
Asia-Pacific
Schedule Of Geographical Segments [Line Items]
Revenues	5.90%	6.30%
Rest of World
Schedule Of Geographical Segments [Line Items]
Revenues	5.30%	5.20%