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Revenue Recognition - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Jan. 03, 2021 | Dec. 29, 2019 | Sep. 30, 2020
Concentration Risk [Line Items] |  |  |
Allowance for product returns | $ 24.1 |  | $ 23.1
Customer Concentration Risk | Two Customers | Net Sales |  |  |
Concentration Risk [Line Items] |  |  |
Concentration risk percentage | 23.60% |  |
Customer Concentration Risk | One Customer | Net Sales |  |  |
Concentration Risk [Line Items] |  |  |
Concentration risk percentage |  | 13.80% |

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