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Acquisitions - Purchase Price Allocation (Details) - USD ($) $ in Millions | Mar. 30, 2019 | Oct. 30, 2018 | Jun. 30, 2018 | Mar. 15, 2018
--- | --- | --- | --- | ---
Business Acquisition [Line Items] |  |  |  |
Goodwill | $ 371.9 |  | $ 336.3 |
RPC Photonics, Inc. |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Tangible assets acquired |  | $ 5.7 |  |
Goodwill |  | 33.9 |  |
Total consideration transferred |  | 69.6 |  |
RPC Photonics, Inc. | Developed technology |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Intangible assets acquired |  | 15.7 |  |
RPC Photonics, Inc. | Customer relationships |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Intangible assets acquired |  | 14.0 |  |
RPC Photonics, Inc. | Customer Backlog |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Intangible assets acquired |  | $ 0.3 |  |
AW business |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Tangible assets acquired |  |  |  | $ 59.0
Goodwill |  |  |  | 175.8
Total consideration transferred |  |  |  | 466.8
AW business | Developed technology |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Intangible assets acquired |  |  |  | 113.5
AW business | Customer relationships |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Intangible assets acquired |  |  |  | 75.0
AW business | Trade names |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Intangible assets acquired |  |  |  | 28.0
AW business | Customer Backlog |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Intangible assets acquired |  |  |  | 6.5
In-process research and development | AW business |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Intangible assets acquired |  |  |  | $ 9.0

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