SEGMENT REPORTING (Expenses) (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Segment Reporting, Other Significant Reconciling Item [Line Items]
Expenses	$ 392,580	$ 395,701	$ 958,106	$ 1,100,509
Equity compensation expense	30,336	22,393	91,576	73,974
Operating segment
Segment Reporting, Other Significant Reconciling Item [Line Items]
Transaction support expense	3,490	4,777	9,815	10,757
Equity compensation expense	30,336	22,393	91,576	73,974
Deferred placement fees	2,942	4,366	18,677	17,319
Depreciation and amortization expense	14,336	24,564	26,197	35,609
Operating segment \| Ares Management L.P
Segment Reporting, Other Significant Reconciling Item [Line Items]
Expenses	234,679	125,223	648,392	431,191
Performance related compensation-unrealized	(24,818)	(137,174)	61,010	(311,936)
Operating segment \| Consolidated Funds
Segment Reporting, Other Significant Reconciling Item [Line Items]
Expenses	392,580	395,701	958,106	1,100,509
Reconciling items
Segment Reporting, Other Significant Reconciling Item [Line Items]
Expenses	(157,901)	(270,478)	(309,714)	(669,318)
Administrative fees	(9,216)	(9,649)	(27,715)	(22,853)
Transaction support expense	(3,474)	(4,777)	(9,430)	(10,757)
Equity compensation expense	(30,336)	(22,393)	(91,576)	(73,974)
Deferred placement fees	(2,942)	(4,366)	(18,677)	(17,319)
Depreciation and amortization expense	(14,336)	(24,564)	(26,197)	(35,609)
Reconciling items \| Non-Controlling interest \| Subsidiaries
Segment Reporting, Other Significant Reconciling Item [Line Items]
Expenses	(5,690)	(1,205)	(8,630)	(3,378)
Reconciling items \| Consolidated Funds
Segment Reporting, Other Significant Reconciling Item [Line Items]
Expenses of Consolidated Funds added in consolidation	(17,737)	(19,664)	(50,237)	(61,977)
Expenses of Consolidated Funds eliminated in consolidation	11,718	8,780	33,531	31,112
OMG
Segment Reporting, Other Significant Reconciling Item [Line Items]
Expenses	$ 61,070	$ 55,466	$ 171,793	$ 162,627

Represents the amount of expenses added in consolidation during the period.

No definition available.

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- Definition

Represents the amount of expenses eliminated in consolidation during the period.

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No definition available.

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- Definition

Represents the amount of compensation expense unrealized by the entity based on the investment results achieved.

+ References

No definition available.

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- Definition

For segment reporting, the amount of other fee revenue net of certain expenses.

+ References

No definition available.

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- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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- Definition

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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- Definition

This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

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Expense related to distribution, servicing and underwriting fees.

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- Definition

Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense.

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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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No definition available.

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