Segment and Geographic Information - Revenue by Geographical Region (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Jun. 25, 2022	Jun. 26, 2021	Jun. 25, 2022	Jun. 26, 2021
Segment Reporting Information [Line Items]
Total revenue	$ 175,552	$ 131,487	$ 348,900	$ 160,205
United States
Segment Reporting Information [Line Items]
Total revenue	174,699	130,582	346,329	157,336
Canada
Segment Reporting Information [Line Items]
Total revenue	$ 853	$ 905	$ 2,571	$ 2,869
Non-US \| Revenue from Contract with Customer Benchmark \| Geographic Concentration Risk
Segment Reporting Information [Line Items]
Concentration risk, percentage	0.00%	1.00%	1.00%	2.00%

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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+ Details