Equity - Dividend Distributions (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Declared
Preferred Stock	$ 4.3		$ 12.9	$ 0.0
Common stock	$ 31.3	$ 29.0	94.4	89.8
Paid
Preferred Stock			11.9	0.0
Common stock			$ 92.7	$ 88.2

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Amount of paid and unpaid common stock dividends declared with the form of settlement in cash.

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