INVESTMENTS (Investments of the Consolidated Funds) (Details) - Consolidated Funds - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Investments
Total investments	$ 9,094,565	$ 8,727,947
Percent of total assets	5.00%	5.00%
Fixed Income Securities
Investments
Total investments	$ 8,733,810	$ 8,319,551
Percentage of total investments as of	96.00%	95.30%
Fixed Income Securities \| Bonds
Investments
Total investments	$ 200,152	$ 212,376
Percentage of total investments as of	2.20%	2.40%
Fixed Income Securities \| Loans
Investments
Total investments	$ 8,533,658	$ 8,062,740
Percentage of total investments as of	93.80%	92.40%
Fixed Income Securities \| Investments in CLO warehouse
Investments
Total investments	$ 0	$ 44,435
Percentage of total investments as of	0.00%	0.50%
Equity Securities
Investments
Total investments	$ 53,730	$ 112,384
Percentage of total investments as of	0.60%	1.30%
Partnership Interests
Investments
Total investments	$ 307,025	$ 296,012
Percentage of total investments as of	3.40%	3.40%

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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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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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://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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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
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