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Investment in Unconsolidated Affiliates Summarized Income Statement of Equity Method Investment (Details) - USD ($) $ in Millions | 3 Months Ended
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Mar. 31, 2020 | Mar. 31, 2019
Schedule of Equity Method Investments [Line Items] |  |
Equity Method Investment, Summarized Financial Information, Revenue | $ 648.0 | $ 795.0
Equity Method Investment, Summarized Financial Information, Cost of Sales | 226.0 | 378.0
Equity Method Investment, Summarized Financial Information, Operating Income | 146.0 | 165.0
Equity Method Investment, Summarized Financial Information, Net Income (Loss) | $ 103.0 | $ 113.3

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