INVESTMENTS (Fair Value Investments, excluding Equity Method Investments Held at Fair Value) (Details) - Ares Management L.P - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Investments
Equity method investments	$ 1,779,864	$ 1,326,137
Partnership interests	36,765	36,053
Total private investment partnership interests and other	132,838	108,558
Collateralized loan obligations	23,417	20,824
Equity securities	$ 13,560	$ 11,681
Percentage of total investments as of	1.30%	1.60%
Partnership interests
Investments
Total private investment partnership interests and other	$ 1,696,188	$ 1,264,029
Percentage of total investments as of	95.30%	95.30%
Other fixed income
Investments
Total private investment partnership interests and other	$ 59,096	$ 40,000
Percentage of total investments as of	3.30%	3.00%
Collateralized loan obligations
Investments
Collateralized loan obligations	$ 82,513	$ 60,824
Percentage of total investments as of	4.60%	4.60%
Common Stock
Investments
Equity securities	$ 1,163	$ 1,284
Percentage of total investments as of	0.10%	0.10%
Partnership interests
Investments
Equity method investments	$ 379,338	$ 357,655
Percentage of total investments as of	21.30%	27.00%
Carried interest allocation
Investments
Equity method investments	$ 1,250,191	$ 841,079
Percentage of total investments as of	70.20%	63.40%
Equity method private investment partnership interests and other (held at fair value)
Investments
Equity method investments	$ 49,162	$ 46,450
Percentage of total investments as of	2.80%	3.50%
Equity method private investment partnership interests and other
Investments
Partnership interests	$ 17,497	$ 18,845
Percentage of total investments as of	1.00%	1.40%

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Fair value of investment other than investment in equity security, investment in debt security and equity method investment. Includes, but is not limited to, investment in certain entities that calculate net asset value per share. Example includes, but is not limited to, investment in hedge fund, venture capital fund, private equity fund, and real estate partnership or fund.

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Fair value portion of investments accounted under the equity method.

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Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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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.

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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.

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