FAIR VALUE - Valuation Techniques (Details) $ in Thousands	Sep. 30, 2023 USD ($)	Dec. 31, 2022 USD ($)
Consolidated Funds
Assets
Equity securities	$ 1,172,657	$ 731,599
Partnership interests	1,486,217	1,392,169
Collateralized loan obligations	11,460,963	10,701,720
Fixed income investments	11,565,910	11,080,865
Total assets, at fair value	14,230,283	13,207,533
Liabilities
Derivative instruments	(20,867)	(15,824)
Total liabilities, at fair value	(11,481,830)	(10,717,544)
Consolidated Funds \| Level III
Assets
Equity securities	1,111,593	730,880
Partnership interests	0	368,655
Collateralized loan obligations	0	0
Fixed income investments	552,028	869,668
Total assets, at fair value	1,663,621	1,969,203
Liabilities
Derivative instruments	(2,145)	(3,556)
Total liabilities, at fair value	(2,145)	(3,556)
Consolidated Funds \| Level III \| Market approach
Assets
Fixed income investments		125,612
Consolidated Funds \| Level III \| Market approach \| Equity Securities One
Assets
Equity securities	502,644
Consolidated Funds \| Level III \| Market approach \| Equity Securities Two
Assets
Equity securities	928
Consolidated Funds \| Level III \| Market approach \| Fixed Income Investments One
Assets
Fixed income investments	108,666
Consolidated Funds \| Level III \| Market approach \| Fixed Income Investments Two
Assets
Fixed income investments	$ 2,627
Consolidated Funds \| Level III \| Market approach \| Multiple of book value
Assets
Equity securities		$ 290,258
Consolidated Funds \| Level III \| Market approach \| Multiple of book value \| Minimum
Significant Unobservable Input(s)
Equity securities		1.0
Consolidated Funds \| Level III \| Market approach \| Multiple of book value \| Minimum \| Equity Securities One
Significant Unobservable Input(s)
Equity securities	1.0
Consolidated Funds \| Level III \| Market approach \| Multiple of book value \| Maximum
Significant Unobservable Input(s)
Equity securities		1.2
Consolidated Funds \| Level III \| Market approach \| Multiple of book value \| Maximum \| Equity Securities One
Significant Unobservable Input(s)
Equity securities	1.7
Consolidated Funds \| Level III \| Market approach \| Multiple of book value \| Weighted Average
Significant Unobservable Input(s)
Equity securities		1.2
Consolidated Funds \| Level III \| Market approach \| Multiple of book value \| Weighted Average \| Equity Securities One
Significant Unobservable Input(s)
Equity securities	1.3
Consolidated Funds \| Level III \| Market approach \| Net income multiple
Assets
Equity securities		$ 36,681
Significant Unobservable Input(s)
Equity securities		30.0
Consolidated Funds \| Level III \| Market approach \| Net income multiple \| Weighted Average
Significant Unobservable Input(s)
Equity securities		30.0
Consolidated Funds \| Level III \| Market approach \| EBITDA multiple
Assets
Equity securities		$ 2,064
Fixed income investments		$ 4,479
Consolidated Funds \| Level III \| Market approach \| EBITDA multiple \| Minimum
Significant Unobservable Input(s)
Equity securities		6.3
Fixed income investments		8.0
Consolidated Funds \| Level III \| Market approach \| EBITDA multiple \| Minimum \| Equity Securities Two
Significant Unobservable Input(s)
Equity securities	6.3
Consolidated Funds \| Level III \| Market approach \| EBITDA multiple \| Minimum \| Fixed Income Investments Two
Significant Unobservable Input(s)
Fixed income investments	5.4
Consolidated Funds \| Level III \| Market approach \| EBITDA multiple \| Maximum
Significant Unobservable Input(s)
Equity securities		31.0
Fixed income investments		9.0
Consolidated Funds \| Level III \| Market approach \| EBITDA multiple \| Maximum \| Equity Securities Two
Significant Unobservable Input(s)
Equity securities	30.0
Consolidated Funds \| Level III \| Market approach \| EBITDA multiple \| Maximum \| Fixed Income Investments Two
Significant Unobservable Input(s)
Fixed income investments	30.0
Consolidated Funds \| Level III \| Market approach \| EBITDA multiple \| Weighted Average
Significant Unobservable Input(s)
Equity securities		13.6
Fixed income investments		8.5
Consolidated Funds \| Level III \| Market approach \| EBITDA multiple \| Weighted Average \| Equity Securities Two
Significant Unobservable Input(s)
Equity securities	16.8
Consolidated Funds \| Level III \| Market approach \| EBITDA multiple \| Weighted Average \| Fixed Income Investments Two
Significant Unobservable Input(s)
Fixed income investments	8.7
Consolidated Funds \| Level III \| Market approach \| Yield \| Minimum
Significant Unobservable Input(s)
Fixed income investments		0.066
Consolidated Funds \| Level III \| Market approach \| Yield \| Minimum \| Fixed Income Investments One
Significant Unobservable Input(s)
Fixed income investments	0.084
Consolidated Funds \| Level III \| Market approach \| Yield \| Maximum
Significant Unobservable Input(s)
Fixed income investments		0.217
Consolidated Funds \| Level III \| Market approach \| Yield \| Maximum \| Fixed Income Investments One
Significant Unobservable Input(s)
Fixed income investments	0.219
Consolidated Funds \| Level III \| Market approach \| Yield \| Weighted Average
Significant Unobservable Input(s)
Fixed income investments		0.128
Consolidated Funds \| Level III \| Market approach \| Yield \| Weighted Average \| Fixed Income Investments One
Significant Unobservable Input(s)
Fixed income investments	0.125
Consolidated Funds \| Level III \| Discounted cash flow
Assets
Equity securities	$ 607,252	$ 401,229
Consolidated Funds \| Level III \| Discounted cash flow \| Discount rate
Assets
Partnership interests		$ 368,655
Consolidated Funds \| Level III \| Discounted cash flow \| Discount rate \| Minimum
Significant Unobservable Input(s)
Equity securities	0.100	0.080
Partnership interest		0.103
Consolidated Funds \| Level III \| Discounted cash flow \| Discount rate \| Maximum
Significant Unobservable Input(s)
Equity securities	0.160	0.180
Partnership interest		0.220
Consolidated Funds \| Level III \| Discounted cash flow \| Discount rate \| Weighted Average
Significant Unobservable Input(s)
Equity securities	0.130	12
Partnership interest		0.189
Consolidated Funds \| Level III \| Transaction price
Assets
Fixed income investments	$ 34,093	$ 6,155
Consolidated Funds \| Level III \| Other
Assets
Equity securities	769	648
Fixed income investments	4,039	1,714
Consolidated Funds \| Level III \| Broker quotes and/or 3rd party pricing services
Assets
Fixed income investments	402,603	731,708
Liabilities
Derivative instruments	(2,145)	(3,556)
Ares Management L.P
Assets
Equity securities	241,104	198,807
Partnership interests	3,630	1,385
Total assets, at fair value	322,649	281,299
Liabilities
Total liabilities, at fair value	(801)	(3,423)
Ares Management L.P \| Level III
Assets
Equity securities	154,912	121,785
Partnership interests	0	0
Total assets, at fair value	230,127	198,719
Liabilities
Total liabilities, at fair value	0	0
Ares Management L.P \| Level III \| Market approach
Assets
Equity securities	$ 114,225
Ares Management L.P \| Level III \| Market approach \| Equity Securities One
Assets
Equity securities		$ 106,295
Ares Management L.P \| Level III \| Market approach \| Multiple of book value \| Equity Securities One
Significant Unobservable Input(s)
Equity securities		1.3
Ares Management L.P \| Level III \| Market approach \| Multiple of book value \| Minimum
Significant Unobservable Input(s)
Equity securities	1.3
Ares Management L.P \| Level III \| Market approach \| Multiple of book value \| Maximum
Significant Unobservable Input(s)
Equity securities	2.2
Ares Management L.P \| Level III \| Market approach \| Multiple of book value \| Weighted Average
Significant Unobservable Input(s)
Equity securities	1.8
Ares Management L.P \| Level III \| Market approach \| Multiple of book value \| Weighted Average \| Equity Securities One
Significant Unobservable Input(s)
Equity securities		2.4
Ares Management L.P \| Level III \| Discounted cash flow
Assets
Equity securities	$ 507
Ares Management L.P \| Level III \| Discounted cash flow \| Discount rate
Significant Unobservable Input(s)
Equity securities	20.5
Ares Management L.P \| Level III \| Discounted cash flow \| Discount rate \| Weighted Average
Significant Unobservable Input(s)
Equity securities	20.5
Ares Management L.P \| Level III \| Transaction price
Assets
Equity securities	$ 37,403	$ 15,490
Fixed income investments	32,504	30,189
Ares Management L.P \| Level III \| Other
Assets
Equity securities	2,777
Fixed income investments	21,832	21,582
Ares Management L.P \| Level III \| Broker quotes and/or 3rd party pricing services
Assets
Collateralized loan obligations	$ 20,879	$ 25,163

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