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INVESTMENTS - Deconsolidation Impacts on Financial Statements (Details) - USD ($) $ in Millions | 3 Months Ended
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Mar. 31, 2025 | Mar. 31, 2024
Investments, Debt and Equity Securities [Abstract] |  |
Net increase (decrease) in assets of consolidated investment products | $ (422.7) | $ (35.4)
Net increase (decrease) in liabilities of consolidated investment products | (23.5) | 0.0
Net increase (decrease) in redeemable non-controlling interests | $ (75.1) | $ (28.1)

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- Definition Increase (Decrease) In Liabilities Of Voting Interest Entities And Variable Interest Entities + References No definition available. + Details
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- Definition Net Increase or Decrease in balance of noncontrolling interest in the subsidiary during the reporting period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 16 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481231/810-10-45-16 + Details
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