Segment and Geographic Information - Summary of Revenue for Geographic Regions (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2021	Jun. 27, 2020	Jun. 30, 2021	Jun. 27, 2020
Segment Reporting Revenue Reconciling Item [Line Items]
Total revenue	$ 435,668	$ 351,721	$ 1,326,504	$ 1,067,434
Americas
Segment Reporting Revenue Reconciling Item [Line Items]
Total revenue	180,154	156,221	562,763	466,188
Europe
Segment Reporting Revenue Reconciling Item [Line Items]
Total revenue	159,558	121,317	524,354	404,260
Asia-Pacific
Segment Reporting Revenue Reconciling Item [Line Items]
Total revenue	$ 95,956	$ 74,183	$ 239,387	$ 196,986