INVESTMENTS - Investments of the Consolidated Funds (Details) - Consolidated Funds - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Investments
Total investments, at fair value	$ 12,662,182	$ 12,816,678
Percent of total assets	5.00%	5.00%
Fixed income investments:
Investments
Total investments, at fair value	$ 11,349,343	$ 11,768,099
Percentage of total investments	89.60%	91.80%
Fixed income investments: \| Bonds
Investments
Total investments, at fair value	$ 876,607	$ 857,125
Percentage of total investments	6.90%	6.70%
Fixed income investments: \| Loans
Investments
Total investments, at fair value	$ 9,462,121	$ 9,910,689
Percentage of total investments	74.70%	77.30%
Fixed income investments: \| U.S. Treasury securities
Investments
Total investments, at fair value	$ 1,000,615	$ 1,000,285
Percentage of total investments	7.90%	7.80%
Fixed income investments: \| Investments in CLO warehouse
Investments
Total investments, at fair value	$ 10,000	$ 0
Percentage of total investments	0.10%	0.00%
Equity securities
Investments
Total investments, at fair value	$ 351,780	$ 340,272
Percentage of total investments	2.80%	2.70%
Partnership interests
Investments
Total investments, at fair value	$ 961,059	$ 708,307
Percentage of total investments	7.60%	5.50%

Percent by which the fair value of a single issuer or investment exceeds the entity's total consolidated net assets. This is used as a threshold for a count of such issuers or investments at balance sheet date.

No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Percent of net assets at close of period. For schedules of investments that are categorized, each category has a percent of net assets for the aggregated value of the Investments in the category.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 946
-SubTopic 320
-Section S99
-Paragraph 3
-Subparagraph (SX 210.12-12B(Column D))
-URI http://asc.fasb.org/extlink&oid=122147990&loc=d3e611197-123010

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 946
-SubTopic 210
-Section 50
-Paragraph 6
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=99383244&loc=d3e12121-115841

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- Definition

Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258

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