Cash, Cash Equivalents and Short-term Investments - Summary of Unrealized Losses (Details) - USD ($) $ in Millions	Sep. 28, 2024	Jun. 29, 2024
Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss
Fair Value, More Than 12 Months	$ 180.1	$ 268.3
Unrealized Losses, More Than 12 Months	(0.2)	(1.2)
Fair Value, Less Than 12 Months	52.0	171.5
Unrealized Losses, Less Than 12 Months	0.0	(0.3)
Gross Unrealized Losses	(0.2)	(1.5)
U.S. Agency securities
Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss
Fair Value, More Than 12 Months	44.6	62.3
Unrealized Losses, More Than 12 Months	0.0	(0.3)
Fair Value, Less Than 12 Months	4.0	12.6
Unrealized Losses, Less Than 12 Months	0.0	0.0
Gross Unrealized Losses	0.0	(0.3)
Commercial paper
Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss
Fair Value, More Than 12 Months	0.0	0.0
Unrealized Losses, More Than 12 Months	0.0	0.0
Fair Value, Less Than 12 Months	7.5	28.6
Unrealized Losses, Less Than 12 Months	0.0	0.0
Gross Unrealized Losses	0.0	0.0
Corporate debt securities
Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss
Fair Value, More Than 12 Months	67.1	133.7
Unrealized Losses, More Than 12 Months	(0.1)	(0.5)
Fair Value, Less Than 12 Months	18.0	90.6
Unrealized Losses, Less Than 12 Months	0.0	(0.2)
Gross Unrealized Losses	(0.1)	(0.7)
U.S. government bonds
Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss
Fair Value, More Than 12 Months	68.4	72.3
Unrealized Losses, More Than 12 Months	(0.1)	(0.4)
Fair Value, Less Than 12 Months	22.5	39.7
Unrealized Losses, Less Than 12 Months	0.0	(0.1)
Gross Unrealized Losses	$ (0.1)	$ (0.5)