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Investments - Schedule of Short-term Investments (Details) - USD ($)
Jun. 29, 2025
Jun. 30, 2024
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost $ 489,600,000 $ 1,137,800,000
Gross Unrealized Gains 600,000 200,000
Gross Unrealized Losses (2,000,000.0) (9,300,000)
Credit Loss Allowance 0 0
Estimated Fair Value 488,200,000 1,128,700,000
Corporate bonds    
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost 196,800,000 423,500,000
Gross Unrealized Gains 300,000 200,000
Gross Unrealized Losses (1,500,000) (6,700,000)
Credit Loss Allowance 0 0
Estimated Fair Value 195,600,000 417,000,000.0
U.S. treasury securities    
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost 192,000,000.0 553,300,000
Gross Unrealized Gains 100,000 0
Gross Unrealized Losses 0 (600,000)
Credit Loss Allowance 0 0
Estimated Fair Value 192,100,000 552,700,000
Municipal bonds    
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost 79,500,000 102,800,000
Gross Unrealized Gains 200,000 0
Gross Unrealized Losses (500,000) (2,000,000.0)
Credit Loss Allowance 0 0
Estimated Fair Value 79,200,000 100,800,000
Certificates of deposit    
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost 5,000,000.0 31,500,000
Gross Unrealized Gains 0 0
Gross Unrealized Losses 0 0
Credit Loss Allowance 0 0
Estimated Fair Value 5,000,000.0 31,500,000
U.S. agency securities    
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost   10,000,000.0
Gross Unrealized Gains   0
Gross Unrealized Losses   0
Credit Loss Allowance   0
Estimated Fair Value   10,000,000.0
Commercial paper    
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost 16,300,000 16,700,000
Gross Unrealized Gains 0 0
Gross Unrealized Losses 0 0
Credit Loss Allowance 0 0
Estimated Fair Value $ 16,300,000 $ 16,700,000