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.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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Name:	us-gaap_BusinessCombinationConsiderationTransferred1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Acquisitions - Consideration Transferred (Details) - USD ($) $ in Millions	Oct. 30, 2018	Mar. 30, 2019	Jun. 30, 2018
Business Acquisition [Line Items]
Fair value of contingent consideration		$ 38.8	$ 0.0
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	$ 36.2
Total purchase consideration	$ 69.6