Segment and Geographic Information - Property and Equipment by Geographic Region (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 28, 2024	Sep. 30, 2023
Segment Reporting Information [Line Items]
Total property and equipment, net	$ 97,109	$ 34,507
United States
Segment Reporting Information [Line Items]
Total property and equipment, net	96,802	33,828
Canada
Segment Reporting Information [Line Items]
Total property and equipment, net	$ 307	$ 679
Non-US | Property, Plant and Equipment | Geographic Concentration Risk
Segment Reporting Information [Line Items]
Concentration risk, percentage	0.00%	2.00%