Property and Equipment - Schedule of Property and Equipment (Details) - USD ($) $ in Thousands	Sep. 28, 2024	Sep. 30, 2023
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 131,232	$ 53,269
Less accumulated depreciation	(34,123)	(18,762)
Property and equipment, net	97,109	34,507
Computer equipment and software, furniture and fixtures, and test and other equipment
Property, Plant and Equipment [Line Items]
Total property and equipment	114,515	40,437
Internal use software
Property, Plant and Equipment [Line Items]
Total property and equipment	7,141	5,638
Leasehold improvements
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 9,576	$ 7,194