DERIVATIVES AND HEDGING - Fair Value of Derivatives of Consolidated Funds (Details) - Not Designated as Hedging Instrument - Consolidated Funds - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Assets
Notional	$ 641,726	$ 817,787
Fair Value	9,743	10,737
Liabilities
Notional	(174,111)	(180,996)
Fair Value	(14,088)	(24,022)
Foreign-currency forward contracts
Assets
Notional	450,665	427,141
Fair Value	1,813	9,758
Liabilities
Notional	(40,602)	(52,531)
Fair Value	(13,232)	(16,356)
Total-return and interest-rate and credit default swaps
Assets
Notional	105,075	12,604
Fair Value	7,618	700
Liabilities
Notional	(26,582)	(3,182)
Fair Value	(38)	(7,666)
Options and futures
Assets
Notional	85,986	378,042
Fair Value	312	279
Liabilities
Notional	(106,927)	(125,283)
Fair Value	$ (818)	$ 0

Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant