VARIABLE INTEREST ENTITIES - Narrative (Details) - USD ($) $ in Thousands	9 Months Ended
Sep. 30, 2018	Dec. 31, 2017
Variable Interest Entity [Line Items]
Investments owned, at fair value	$ 44,119,593	$ 39,013,934
Investments in Unconsolidated Investment Funds
Variable Interest Entity [Line Items]
Commitment to unconsolidated investment funds	1,900,000
Investments in Unconsolidated CLO Vehicles
Variable Interest Entity [Line Items]
Combined assets under management	500,000
Maximum exposure to loss as a result of investments in the residual interests	27,200
Equity Method - Capital Allocation-Based Income
Variable Interest Entity [Line Items]
Investments owned, at fair value	$ 4,417,855	$ 4,132,171

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- Definition

The reporting entity's maximum amount of exposure to loss as a result of its investments in the residual interests with the Variable Interest Entity (VIE).

+ References

No definition available.

+ Details

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- Definition

Value of the investment at close of period. For schedules of investments that are categorized, the value would be aggregated by category. For investment in and advances to affiliates, if operations of any controlled companies are different in character from those of the company, group such affiliates within divisions and by type of activities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 946
-SubTopic 210
-Section 50
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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.

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- Definition

Carrying amount of the assets in the reporting entity's statement of financial position that relate to the reporting entity's variable interest in the Variable Interest Entity (VIE), where the reporting entity is not the VIE's primary beneficiary.

+ References

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