Non-controlling Interests (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Noncontrolling Interest [Line Items]
Net income (loss) attributable to controlling interests	$ 68.0	$ 28.8	$ 16.1
Consolidated Funds
Noncontrolling Interest [Line Items]
Non-controlling interests	0.0	80.3
Net income (loss) attributable to controlling interests	68.0	28.8	$ 16.1
Consolidated Entity Excluding Consolidated Funds
Noncontrolling Interest [Line Items]
Non-controlling interests	$ 0.0	$ 1.7

Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which is directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent (that is, noncontrolling interest, previously referred to as minority interest).

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+ Details