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

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

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

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

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No definition available.

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

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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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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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Amount of payable due to an entity that is affiliated with the reporting entity by means of direct or indirect ownership.

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Expense related to distribution, servicing and underwriting fees.

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The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of a finite-lived intangible asset to fair value.

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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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No definition available.

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Amount of expense classified as other.

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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.

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No definition available.

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SEGMENT REPORTING (Expenses) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018	Mar. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Segment Reporting, Other Significant Reconciling Item [Line Items]
Expenses	$ 395,701	$ 227,188	$ 1,100,509	$ 654,488
Equity compensation expense	22,393	23,940	73,974	67,534
Depreciation and amortization expense				7,800
Non-cash impairment charge	20,000
Ares Management L.P
Segment Reporting, Other Significant Reconciling Item [Line Items]
Due to affiliates	57,551		57,551		$ 82,411
Ares Management L.P \| Affiliated entity \| Rent and other occupancy expenses \| ARCC
Segment Reporting, Other Significant Reconciling Item [Line Items]
Due to affiliates	11,800		11,800		11,800	$ 600	$ 2,200	$ 3,000	$ 3,200	$ 2,900
Consolidated Funds
Segment Reporting, Other Significant Reconciling Item [Line Items]
Due to affiliates	0		0		$ 0
Operating segment
Segment Reporting, Other Significant Reconciling Item [Line Items]
Acquisition and merger-related expense	4,777	253	10,757	(19)
Equity compensation expense	22,393	23,940	73,974	67,534
Unamortized placement fees	4,366	6,194	17,319	9,710
Depreciation and amortization expense	24,564	5,347	35,609	20,234
Operating segment \| Ares Management L.P
Segment Reporting, Other Significant Reconciling Item [Line Items]
Expenses	125,223	163,081	431,191	457,261
Performance related compensation-unrealized	(137,174)	42,417	(311,936)	132,294
Operating segment \| Consolidated Funds
Segment Reporting, Other Significant Reconciling Item [Line Items]
Expenses	395,701	227,188	1,100,509	654,488
Reconciling items
Segment Reporting, Other Significant Reconciling Item [Line Items]
Expenses	(270,478)	(64,107)	(669,318)	(197,227)
Administrative fees	(9,649)	(7,084)	(22,853)	(20,266)
Acquisition and merger-related expense	(4,777)	(253)	(10,757)	19
Equity compensation expense	(22,393)	(23,940)	(73,974)	(67,534)
Unamortized placement fees	(4,366)	(6,194)	(17,319)	(9,710)
Depreciation and amortization expense	(24,564)	(5,347)	(35,609)	(20,234)
Other expenses	0	0	0	(11,836)
Reconciling items \| Non-Controlling interest \| Subsidiaries
Segment Reporting, Other Significant Reconciling Item [Line Items]
Expenses	(1,205)	(814)	(3,378)	(2,141)
Reconciling items \| Consolidated Funds
Segment Reporting, Other Significant Reconciling Item [Line Items]
Expenses of Consolidated Funds added in consolidation	(19,664)	(21,971)	(61,977)	(77,982)
Expenses of Consolidated Funds eliminated in consolidation	8,780	9,138	31,112	28,721
OMG
Segment Reporting, Other Significant Reconciling Item [Line Items]
Expenses	$ 55,466	$ 50,059	$ 162,627	$ 148,558