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Investments - Other Investments (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | ---
Jul. 02, 2021 | Jul. 03, 2020 | Jul. 02, 2021 | Jul. 03, 2020 | Dec. 27, 2021 | Oct. 02, 2020
Equity Securities without Readily Determinable Fair Value [Line Items] |  |  |  |  |  |
Income (Loss) from Equity Method Investments |  |  | $ (287) | $ (13,637) |  |
Non-Cash Equity Method Gain |  |  | 9,800 |  |  |
Less: Current portion of long term debt | $ 0 |  | 0 |  |  | $ 6,885
Forecast |  |  |  |  |  |
Equity Securities without Readily Determinable Fair Value [Line Items] |  |  |  |  |  |
Equity Method Investment, Call Option, Maximum Potential Proceeds |  |  |  |  | $ 128,000 |
Equity Securities | Compute |  |  |  |  |  |
Equity Securities without Readily Determinable Fair Value [Line Items] |  |  |  |  |  |
Equity Method Investments | 14,900 |  | 14,900 |  |  | 15,200
Income (Loss) from Equity Method Investments | (2,000) | $ (4,600) | (300) | $ (13,600) |  |
Preferred Stock | Privately Held Manufacturing Company |  |  |  |  |  |
Equity Securities without Readily Determinable Fair Value [Line Items] |  |  |  |  |  |
Investment cost basis | $ 2,500 |  | $ 2,500 |  |  | $ 2,500
Compute | Equity Securities |  |  |  |  |  |
Equity Securities without Readily Determinable Fair Value [Line Items] |  |  |  |  |  |
Noncontrolling interest ownership percentage | 10.00% |  | 10.00% |  |  |

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