Equity Method Investments (Income Statement) (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Equity Method Investments and Joint Ventures [Abstract]
Total revenues	$ 101.6	$ 128.6	$ 274.1	$ 376.8
Gross loss	(1.1)	(1.3)	(3.1)	(20.0)
Operating and non-operating expense	5.2	5.9	14.3	16.5
Net loss	$ (6.3)	$ (7.2)	$ (17.4)	$ (36.5)

The amount of gross profit (loss) reported by an equity method investment of the entity.

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Amount of income (loss) from continuing operations reported by an equity method investee.

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The amount of net income (loss) reported by an equity method investment of the entity.

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The amount of revenue from sale of goods and services reduced by sales returns, allowances, and discounts reported by an equity method investment of the entity.

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