CONSOLIDATED INVESTMENT PRODUCTS - Narrative (Details) - USD ($) $ in Millions	Jun. 30, 2023	Dec. 31, 2022
Variable Interest Entity [Line Items]
Net interests in consolidated investment products	$ 465.4	$ 386.6
Variable interest entity, unfunded capital commitments	92.3	99.0
De-consolidated
Variable Interest Entity [Line Items]
Carrying value and maximum risk of loss with respect to VIEs in which the Company is not primary beneficiary	$ 129.7	$ 111.5