Investments - Schedule of Short-term Investments by Type (Details) - USD ($) $ in Millions	Mar. 29, 2026	Jun. 29, 2025
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 470.5	$ 489.6
Gross Unrealized Gains	0.1	0.6
Gross Unrealized Losses	(0.9)	(2.0)
Estimated Fair Value	469.7	488.2
U.S. treasury securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	124.5	192.0
Gross Unrealized Gains	0.0	0.1
Gross Unrealized Losses	0.0	0.0
Estimated Fair Value	124.5	192.1
Corporate bonds
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	212.5	196.8
Gross Unrealized Gains	0.0	0.3
Gross Unrealized Losses	(0.7)	(1.5)
Estimated Fair Value	211.8	195.6
Municipal bonds
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	97.0	79.5
Gross Unrealized Gains	0.1	0.2
Gross Unrealized Losses	(0.2)	(0.5)
Estimated Fair Value	96.9	79.2
Certificates of deposit
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	18.8	5.0
Gross Unrealized Gains	0.0	0.0
Gross Unrealized Losses	0.0	0.0
Estimated Fair Value	18.8	5.0
Commercial paper
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	17.7	16.3
Gross Unrealized Gains	0.0	0.0
Gross Unrealized Losses	0.0	0.0
Estimated Fair Value	$ 17.7	$ 16.3

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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