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Amount of gain (loss) on sale or disposal of an equity method investment.

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

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This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

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The cash inflow associated with the sale of equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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Investments - Epic Gas (Details) - Epic Gas - USD ($) $ in Millions	3 Months Ended			9 Months Ended
	Dec. 31, 2018	Mar. 31, 2018	Dec. 31, 2017	Aug. 31, 2019	Nov. 30, 2018
Schedule of Equity Method Investments [Line Items]
Ownership percentage					21.10%
Proceeds from sale of Epic Gas				$ 24.6
Gain on sale of Epic Gas				$ 2.8
Investment in Epic Gas					$ 21.7
Net earnings (losses)	$ 0.9	$ (2.7)	$ (16.4)