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Acquisitions - Bluewater - Purchase Price Allocation (Details) - Bluewater $ in Millions | 1 Months Ended
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Jun. 30, 2017 USD ($)
Business Acquisition [Line Items] |
Current assets | $ 2.0
Net property, plant, and equipment | 217.6
Goodwill | 7.3
Current liabilities | (0.9)
Total purchase price | $ 226.0

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