CONSOLIDATED INVESTMENT PRODUCTS - VIE Change in Assets and Liabilities (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Consolidated VIEs
Variable Interest Entity [Line Items]
Net increase (decrease) in assets of CIP	$ 174.8	$ (258.2)
Net increase (decrease) in liabilities of CIP	66.1	110.8
Consolidated VOEs
Variable Interest Entity [Line Items]
Net increase (decrease) in assets of CIP	(4.5)	(118.1)
Net increase (decrease) in liabilities of CIP	$ 0.9	$ 0.0