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Business Segments and Geographic Information - Revenues by Geography (Detail)	3 Months Ended		9 Months Ended
	Jun. 25, 2022	Jun. 26, 2021	Jun. 25, 2022	Jun. 26, 2021
Schedule Of Geographical Segments [Line Items]
Revenues	100.00%	100.00%	100.00%	100.00%
United States
Schedule Of Geographical Segments [Line Items]
Revenues	73.30%	64.20%	70.10%	68.40%
Europe
Schedule Of Geographical Segments [Line Items]
Revenues	16.40%	24.70%	19.20%	22.30%
Asia-Pacific
Schedule Of Geographical Segments [Line Items]
Revenues	7.10%	7.70%	7.70%	6.20%
Rest of World
Schedule Of Geographical Segments [Line Items]
Revenues	3.20%	3.40%	3.00%	3.10%

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- Definition

Percentage of revenues.

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- Definition

Schedule Of Geographical Segments [Line Items]

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