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Marketable Securities (Notes) | 12 Months Ended
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Sep. 29, 2023
Investments, Debt and Equity Securities [Abstract] |
Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure | . MARKETABLE SECURITIES 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 |
The contractual maturities of noncurrent available-for-sale marketable securities were within two years or less of issuance of the applicable securities. Neither gross unrealized gains and losses nor realized gains and losses were material as of September 29, 2023, and September 30, 2022, respectively.

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