Fair Value Measurements - Schedule of Fair Value Measurements (Details) - USD ($) $ in Millions	Dec. 28, 2024	Sep. 28, 2024	Jun. 29, 2024
Assets:
Debt available-for-sale securities	$ 0.3		$ 0.3
Money market funds	215.9		295.3
Trading securities	1.6		1.5
Foreign currency forward contracts	3.1		1.7
Non-marketable equity security	3.0	$ 3.0	0.0
Total Assets	223.9		298.8
Liabilities:
Foreign currency forward contracts	7.8		1.5
Contingent consideration	2.1		9.5
Total liabilities	9.9		11.0
Cash and cash equivalents
Assets:
Money market funds	209.3		286.7
Restricted cash
Assets:
Money market funds	3.3		4.9
Other non-current assets
Assets:
Money market funds	3.3		3.7
Asset-backed securities
Assets:
Debt available-for-sale securities	0.3		0.3
Level 1
Assets:
Debt available-for-sale securities	0.0		0.0
Money market funds	215.9		295.3
Trading securities	1.6		1.5
Foreign currency forward contracts	0.0		0.0
Non-marketable equity security	0.0		0.0
Total Assets	217.5		296.8
Liabilities:
Foreign currency forward contracts	0.0		0.0
Contingent consideration	0.0		0.0
Total liabilities	0.0		0.0
Level 1 | Asset-backed securities
Assets:
Debt available-for-sale securities	0.0		0.0
Level 2
Assets:
Debt available-for-sale securities	0.3		0.3
Money market funds	0.0		0.0
Trading securities	0.0		0.0
Foreign currency forward contracts	3.1		1.7
Non-marketable equity security	0.0		0.0
Total Assets	3.4		2.0
Liabilities:
Foreign currency forward contracts	7.8		1.5
Contingent consideration	0.0		0.0
Total liabilities	7.8		1.5
Level 2 | Asset-backed securities
Assets:
Debt available-for-sale securities	0.3		0.3
Level 3
Assets:
Debt available-for-sale securities	0.0		0.0
Money market funds	0.0		0.0
Trading securities	0.0		0.0
Foreign currency forward contracts	0.0		0.0
Non-marketable equity security	3.0		0.0
Total Assets	3.0		0.0
Liabilities:
Foreign currency forward contracts	0.0		0.0
Contingent consideration	2.1		9.5
Total liabilities	2.1		9.5
Level 3 | Asset-backed securities
Assets:
Debt available-for-sale securities	$ 0.0		$ 0.0