FAIR VALUE (Valuation Techniques) (Details) $ in Thousands	Jun. 30, 2018 USD ($)	Dec. 31, 2017 USD ($)
Assets
Partnership interest	$ 38,097	$ 35,998
Consolidated Funds
Assets
Equity securities	232,866	235,135
Partnership interest	251,608	232,332
Collateralized loan obligations	6,333,239	4,963,194
Fixed income securities	6,483,593	5,115,375
Derivative instruments		1,366
Total assets	6,969,020	5,584,208
Liabilities
Liabilities, at fair value	(6,333,962)	(4,963,656)
Consolidated Funds \| Level III
Assets
Equity securities	184,583	162,577
Partnership interest	251,608	232,332
Collateralized loan obligations	0	0
Fixed income securities	482,375	267,889
Derivative instruments		1,366
Total assets	919,519	664,164
Liabilities
Liabilities, at fair value	(723)	(462)
Consolidated Funds \| Level III \| Broker quotes and/or 3rd party pricing services
Assets
Equity securities	60	126
Fixed income securities	434,397	222,413
Derivative instruments	953	1,366
Liabilities
Derivatives instruments	(723)	(462)
Consolidated Funds \| Level III \| Enterprise value market multiple analysis
Assets
Equity securities	$ 51,010	$ 63,155
Consolidated Funds \| Level III \| Enterprise value market multiple analysis \| EBITDA multiple
Unobservable Input
Equity securities	7.7	2.7
Consolidated Funds \| Level III \| Enterprise value market multiple analysis \| EBITDA multiple \| Weighted Average
Unobservable Input
Equity securities	7.66	2.7
Consolidated Funds \| Level III \| Market approach
Assets
Equity securities	$ 44,637	$ 61,215
Fixed income securities		$ 233
Consolidated Funds \| Level III \| Market approach \| EBITDA multiple
Unobservable Input
Fixed income securities		6.5
Consolidated Funds \| Level III \| Market approach \| EBITDA multiple \| Weighted Average
Unobservable Input
Fixed income securities		6.5
Consolidated Funds \| Level III \| Market approach \| Net income multiple
Unobservable Input
Equity securities	51.8
Consolidated Funds \| Level III \| Market approach \| Net income multiple \| Minimum
Unobservable Input
Equity securities		27.0
Consolidated Funds \| Level III \| Market approach \| Net income multiple \| Maximum
Unobservable Input
Equity securities		36.2
Consolidated Funds \| Level III \| Market approach \| Net income multiple \| Weighted Average
Unobservable Input
Equity securities	51.8	33.7
Consolidated Funds \| Level III \| Market approach \| Illiquidity discount
Unobservable Input
Equity securities	0.250	0.25
Consolidated Funds \| Level III \| Market approach \| Illiquidity discount \| Weighted Average
Unobservable Input
Equity securities	0.250	0.25
Consolidated Funds \| Level III \| Discounted cash flow
Assets
Partnership interest	$ 251,608	$ 232,332
Consolidated Funds \| Level III \| Discounted cash flow \| Discount rate
Unobservable Input
Partnership interest	0.170	0.190
Consolidated Funds \| Level III \| Discounted cash flow \| Discount rate \| Weighted Average
Unobservable Input
Partnership interest	0.170	0.190
Consolidated Funds \| Level III \| Transaction price
Assets
Equity securities	$ 88,876	$ 38,081
Consolidated Funds \| Level III \| Income approach
Assets
Fixed income securities	$ 47,978	$ 45,243
Consolidated Funds \| Level III \| Income approach \| Yield \| Minimum
Unobservable Input
Fixed income securities	0.078	0.108
Consolidated Funds \| Level III \| Income approach \| Yield \| Maximum
Unobservable Input
Fixed income securities	0.152	0.225
Consolidated Funds \| Level III \| Income approach \| Yield \| Weighted Average
Unobservable Input
Fixed income securities	0.113	0.121
Ares Management L.P
Assets
Equity securities	$ 1,379	$ 1,636
Partnership interest	85,316	80,767
Total assets	109,623	278,059
Liabilities
Liabilities, at fair value	(2,252)	(2,639)
Ares Management L.P \| Level III
Assets
Equity securities	0	0
Partnership interest	47,219	44,769
Total assets	69,344	239,927
Liabilities
Liabilities, at fair value	0	0
Ares Management L.P \| Level III \| Other
Assets
Partnership interest	47,219	44,769
Ares Management L.P \| Level III \| Broker quotes and/or 3rd party pricing services
Assets
Collateralized loan obligations	$ 22,125	$ 195,158

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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