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Investments - Schedule of Short-term Investments (Details) - USD ($)	Jun. 30, 2024	Jun. 25, 2023
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 1,137,800,000	$ 1,220,600,000
Gross Unrealized Gains	200,000	0
Gross Unrealized Losses	(9,300,000)	(22,700,000)
Credit Loss Allowance	0	0
Estimated Fair Value	1,128,700,000	1,197,900,000
Corporate bonds
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	423,500,000	512,300,000
Gross Unrealized Gains	200,000	0
Gross Unrealized Losses	(6,700,000)	(16,700,000)
Credit Loss Allowance	0	0
Estimated Fair Value	417,000,000.0	495,600,000
U.S. treasury securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	553,300,000	261,800,000
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(600,000)	(1,400,000)
Credit Loss Allowance	0	0
Estimated Fair Value	552,700,000	260,400,000
Variable rate demand notes
Debt Securities, Available-for-sale [Line Items]
Amortized Cost		27,300,000
Gross Unrealized Gains		0
Gross Unrealized Losses		0
Credit Loss Allowance		0
Estimated Fair Value		27,300,000
Municipal bonds
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	102,800,000	179,700,000
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(2,000,000.0)	(4,400,000)
Credit Loss Allowance	0	0
Estimated Fair Value	100,800,000	175,300,000
Certificates of deposit
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	31,500,000	112,300,000
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Credit Loss Allowance	0	0
Estimated Fair Value	31,500,000	112,300,000
U.S. agency securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	10,000,000.0	77,000,000.0
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	(200,000)
Credit Loss Allowance	0	0
Estimated Fair Value	10,000,000.0	76,800,000
Commercial paper
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	16,700,000	50,200,000
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Credit Loss Allowance	0	0
Estimated Fair Value	$ 16,700,000	$ 50,200,000

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