Fair Value Measurements - Schedule of Fair Value Measurements (Details) - USD ($) $ in Millions	Apr. 03, 2021	Jun. 27, 2020
Debt available-for-sale securities:
Debt available-for-sale securities	$ 0.5	$ 0.5
Money market funds	380.1	334.6
Trading securities	1.5	1.4
Foreign currency forward contracts	2.1	2.2
Total assets	384.2	338.7
Liability:
Foreign currency forward contracts	2.2	1.5
Contingent consideration	6.7	9.9
Total liabilities	8.9	11.4
Fair value of contingent consideration, noncurrent	1.8	9.4
Fair value of contingent consideration, current	4.9	0.5
Level 1
Debt available-for-sale securities:
Debt available-for-sale securities	0.0	0.0
Money market funds	380.1	334.6
Trading securities	1.5	1.4
Foreign currency forward contracts	0.0	0.0
Total assets	381.6	336.0
Liability:
Foreign currency forward contracts	0.0	0.0
Contingent consideration	0.0	0.0
Total liabilities	0.0	0.0
Level 2
Debt available-for-sale securities:
Debt available-for-sale securities	0.5	0.5
Money market funds	0.0	0.0
Trading securities	0.0	0.0
Foreign currency forward contracts	2.1	2.2
Total assets	2.6	2.7
Liability:
Foreign currency forward contracts	2.2	1.5
Contingent consideration	0.0	0.0
Total liabilities	2.2	1.5
Level 3
Debt available-for-sale securities:
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
Total assets	0.0	0.0
Liability:
Foreign currency forward contracts	0.0	0.0
Contingent consideration	6.7	9.9
Total liabilities	6.7	9.9
Asset-backed securities
Debt available-for-sale securities:
Debt available-for-sale securities	0.5	0.5
Asset-backed securities \| Level 1
Debt available-for-sale securities:
Debt available-for-sale securities	0.0	0.0
Asset-backed securities \| Level 2
Debt available-for-sale securities:
Debt available-for-sale securities	0.5	0.5
Asset-backed securities \| Level 3
Debt available-for-sale securities:
Debt available-for-sale securities	0.0	0.0
Prepayments and other current assets
Debt available-for-sale securities:
Total assets	2.1	2.2
Cash and cash equivalents
Debt available-for-sale securities:
Total assets	372.8	327.2
Short-term investments
Debt available-for-sale securities:
Total assets	1.5	1.4
Restricted cash
Debt available-for-sale securities:
Total assets	2.7	3.4
Other non-current assets
Debt available-for-sale securities:
Debt available-for-sale securities	0.5	0.5
Total assets	5.1	4.5
Other current liabilities
Liability:
Total liabilities	$ 2.2	$ 1.5

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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Amount of investment in debt security measured at fair value with change in fair value recognized in net income (trading) and investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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