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Acquisitions - Fair Value of Consideration Transferred (Details) - USD ($) $ in Millions	May 31, 2019	Oct. 30, 2018	Jul. 03, 2021	Jun. 27, 2020
Business Acquisition [Line Items]
Fair value of contingent consideration			$ 4.0	$ 9.9
3Z Telecom, Inc.
Business Acquisition [Line Items]
Cash consideration paid at closing	$ 18.9
Escrow payments	4.3
Fair value of contingent consideration	5.5
Total purchase consideration	$ 28.7
RPC Photonics, Inc.
Business Acquisition [Line Items]
Cash consideration paid at closing		$ 29.9
Escrow payments		3.5
Fair value of contingent consideration		36.2
Total purchase consideration		$ 69.6

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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Amount of liability recognized arising from contingent consideration in a business combination.

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Payments To Acquire Businesses, Escrow

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