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Acquisition - Supplemental Pro Forma Financial Information (Details) - RF Power $ / shares in Units, $ in Millions | 12 Months Ended
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Jun. 24, 2018 USD ($) $ / shares
Business Acquisition [Line Items] |
Revenue | $ | $ 990.3
Net loss from continuing operations | $ | $ (20.8)
Basic loss per share from continuing operations (USD per share) | $ / shares | $ (0.21)
Diluted loss per share from continuing operations (USD per share) | $ / shares | $ (0.21)

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