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Investments, Forward Contracts and Fair Value Measurements - Reconciliation of Changes in Level 3 Liabilities (Details) - Contingent Consideration $ in Millions	12 Months Ended
	Jun. 29, 2019 USD ($)
Contingent Consideration, Fair Value Disclosure [Roll Forward]
Balance as of June 30, 2018	$ 0.0
Additions: To Level 3 contingent consideration liabilities	44.3
Change: In fair value of contingent consideration liabilities	(5.9)
Balance as of June 29, 2019	$ 38.4

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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- Definition

Amount of purchases of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)
-URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19207-110258

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- Definition

Fair value of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19207-110258

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- Definition

Fair Value, Measurement With Unobservable Inputs Reconciliation, Recurring Basis, Liability, Changes In Fair Value

+ References

No definition available.

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