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Investments (Details) - USD ($) $ in Millions	Mar. 31, 2021	Dec. 31, 2020
Windfield Holdings
Schedule of Investments [Line Items]
Equity method investment, ownership percentage	49.00%
Carrying value of unconsolidated investment	$ 496.2	$ 479.6
Other variable interest entities
Schedule of Investments [Line Items]
Carrying value of unconsolidated investment	$ 8.3	$ 8.0

X

- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

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- Definition

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