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Marketable Securities
 12 Months Ended
Sep. 27, 2024
Investments, Debt and Equity Securities [Abstract]  
MARKETABLE SECURITIES
3.     MARKETABLE SECURITIES
    
The Company’s portfolio of available-for-sale marketable securities consists of the following (in millions):
CurrentNoncurrent
September 27, 2024September 29, 2023September 27, 2024September 29, 2023
U.S. Treasury and government securities$39.0 $15.1 $11.1 $4.1 
Corporate bonds and notes155.0 — 0.3 — 
Municipal bonds0.1 0.5 — — 
Total marketable securities$194.1 $15.6 $11.4 $4.1 
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 27, 2024, or September 29, 2023.