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Investments (Summarized Statements of Operations) (Details) - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Schedule of Equity Method Investments [Line Items]
Net loss	$ (51.7)	$ 46.2
Equity Method Investees
Schedule of Equity Method Investments [Line Items]
Revenues	14.4	23.9
Gross profit	3.9	6.1
Net loss	$ (11.3)	$ (17.6)

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Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity.

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