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INVESTMENTS - Deconsolidation Impacts on Financial Statements (Details) - USD ($) $ in Millions	3 Months Ended
	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 Assets Of Voting Interest Entities And Variable Interest Entities

+ References

No definition available.

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- Definition

Increase (Decrease) In Liabilities Of Voting Interest Entities And Variable Interest Entities

+ References

No definition available.

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- References

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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

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