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Acquisitions - Narrative (Details) - USD ($) $ in Millions			12 Months Ended
	May 31, 2019	Oct. 30, 2018	Jul. 03, 2021	Jun. 27, 2020
Business Acquisition [Line Items]
Consideration paid for asset acquisitions				$ 5.2
Cash paid for asset acquisitions				$ 5.5
Developed technology
Business Acquisition [Line Items]
Useful life			3 years 2 months 12 days	3 years 8 months 12 days
Customer relationships
Business Acquisition [Line Items]
Useful life			3 years 6 months	2 years 7 months 6 days
3Z Telecom, Inc.
Business Acquisition [Line Items]
Cash consideration	$ 23.2
Contingent consideration liability, up to	$ 7.0
Contingent consideration period	2 years
Escrow payments	$ 4.3
3Z Telecom, Inc. | Minimum
Business Acquisition [Line Items]
Useful life	5 years
3Z Telecom, Inc. | Maximum
Business Acquisition [Line Items]
Useful life	6 years
3Z Telecom, Inc. | Customer backlog
Business Acquisition [Line Items]
Useful life	1 year
RPC Photonics, Inc.
Business Acquisition [Line Items]
Cash consideration		$ 33.4
Contingent consideration liability, up to		$ 53.0
Contingent consideration period		4 years
Escrow payments		$ 3.5
RPC Photonics, Inc. | Minimum
Business Acquisition [Line Items]
Useful life		6 years
RPC Photonics, Inc. | Maximum
Business Acquisition [Line Items]
Useful life		7 years
RPC Photonics, Inc. | Customer backlog
Business Acquisition [Line Items]
Useful life		1 year
Other acquisitions
Business Acquisition [Line Items]
Asset acquisition, deferred tax liability				$ 1.4
Other acquisitions | Acquired developed technology and customer relationships
Business Acquisition [Line Items]
Useful life				6 years
Other acquisitions | Developed technology
Business Acquisition [Line Items]
Assets acquired				$ 6.2
Other acquisitions | Customer relationships
Business Acquisition [Line Items]
Assets acquired				$ 6.2

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- Definition

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, from an acquisition.

+ References

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