Summary of Significant Accounting Policies - Textual (Details)	12 Months Ended
	Oct. 02, 2021 USD ($) segment	Oct. 03, 2020 USD ($)	Sep. 28, 2019 USD ($)
Product Warranty Liability [Line Items]
Restricted cash	$ 0	$ 191,000
Capitalized costs	$ 14,300,000	4,800,000
Product warranty term	1 year
Contributions by employer	$ 7,600,000	6,200,000
Number of operating segments | segment	1
Term of option to extend	5 years
Termination option period	1 year
European Union
Product Warranty Liability [Line Items]
Product warranty term	2 years
Sales and marketing
Product Warranty Liability [Line Items]
Advertising costs	$ 62,300,000	$ 43,900,000	$ 48,800,000
One vendor | Supplier concentration risk | Inventories
Product Warranty Liability [Line Items]
Concentration percentage	59.00%	65.00%	83.00%