v3.26.1
Investments - Schedule of Gross Unrealized Losses and Fair Value of Short-term Investments by Type and Length of Time (Details)
$ in Millions
Jun. 28, 2026
USD ($)
security
Jun. 29, 2025
USD ($)
security
Fair Value    
Less than 12 Months $ 352.7 $ 125.5
Greater than 12 Months 43.5 106.5
Total 396.2 232.0
Unrealized Loss    
Less than 12 Months (0.6) 0.0
Greater than 12 Months (0.1) (2.0)
Total $ (0.7) $ (2.0)
Number of securities with an unrealized loss    
Less than 12 Months | security 173 54
Greater than 12 Months | security 12 25
Total | security 185 79
Corporate bonds    
Fair Value    
Less than 12 Months $ 155.7 $ 28.7
Greater than 12 Months 11.2 65.2
Total 166.9 93.9
Unrealized Loss    
Less than 12 Months (0.4) 0.0
Greater than 12 Months 0.0 (1.5)
Total (0.4) (1.5)
U.S. treasury securities    
Fair Value    
Less than 12 Months 129.0 90.6
Greater than 12 Months 29.7 0.0
Total 158.7 90.6
Unrealized Loss    
Less than 12 Months (0.1) 0.0
Greater than 12 Months (0.1) 0.0
Total (0.2) 0.0
Municipal bonds    
Fair Value    
Less than 12 Months 68.0 6.2
Greater than 12 Months 2.6 41.3
Total 70.6 47.5
Unrealized Loss    
Less than 12 Months (0.1) 0.0
Greater than 12 Months 0.0 (0.5)
Total $ (0.1) $ (0.5)