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v3.20.2

Summary of Significant Accounting Policies - Textual (Details) | 12 Months Ended |  |
--- | --- | --- | ---
Oct. 03, 2020 USD ($) operating_segment | Sep. 28, 2019 USD ($) | Sep. 29, 2018 USD ($) | Nov. 14, 2019 | Sep. 29, 2019 USD ($)
Product Warranty Liability [Line Items] |  |  |  |  |
Restricted cash | $ 191,000 | $ 179,000 |  |  |
Impairment of long-lived assets |  | 0 | $ 0 |  |
Product warranty term | 1 year |  |  |  |
401(k) plan maximum annual contribution per employee | 100.00% |  |  |  |
Contributions by employer | $ 6,200,000 | 4,100,000 |  |  |
Number of operating segments (in segment) | operating_segment | 1 |  |  |  |
Operating lease right-of-use assets | $ 42,342,000 | 0 |  |  |
Operating lease liability | 61,270,000 |  |  |  |
Assets | 816,051,000 | 761,605,000 |  |  |
Liabilities | 518,212,000 | 480,677,000 |  |  |
Snips SAS |  |  |  |  |
Product Warranty Liability [Line Items] |  |  |  |  |
Percentage of business acquired |  |  |  | 100.00% |
Accounting Standards Update 2016-02 |  |  |  |  |
Product Warranty Liability [Line Items] |  |  |  |  |
Operating lease right-of-use assets |  |  |  |  | $ 63,700,000
Operating lease liability |  |  |  |  | $ 73,700,000
Assets | 62,500,000 |  |  |  |
Liabilities | $ 62,500,000 |  |  |  |
European Union |  |  |  |  |
Product Warranty Liability [Line Items] |  |  |  |  |
Product warranty term | 2 years |  |  |  |
Sales and marketing |  |  |  |  |
Product Warranty Liability [Line Items] |  |  |  |  |
Advertising costs | $ 43,900,000 | $ 48,800,000 | $ 50,200,000 |  |
One vendor | Supplier concentration risk |  |  |  |  |
Product Warranty Liability [Line Items] |  |  |  |  |
Concentration percentage | 65.00% | 83.00% | 98.00% |  |

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