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Marketable Securities (Tables) | 12 Months Ended
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Sep. 29, 2023
Investments, Debt and Equity Securities [Abstract] |
Debt Securities, Available-for-sale | The Company’s portfolio of available-for-sale marketable securities consists of the following (in millions):
| Current |  | Noncurrent
| September 29, 2023 |  | September 30, 2022 |  | September 29, 2023 |  | September 30, 2022
U.S. Treasury and government | $ | 15.1 |  |  | $ | 13.1 |  |  | $ | 4.1 |  |  | $ | 0.5 |
Corporate bonds and notes | — |  |  | 0.2 |  |  | — |  |  | — |
Municipal bonds | 0.5 |  |  | 7.0 |  |  | — |  |  | — |
Total marketable securities | $ | 15.6 |  |  | $ | 20.3 |  |  | $ | 4.1 |  |  | $ | 0.5 |

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