FAIR VALUE - Valuation Techniques (Details) $ in Thousands	Mar. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Consolidated Funds
Assets
Equity securities	$ 351,780	$ 340,272
Partnership interests	961,059	708,307
Collateralized loan obligations	10,397,615	10,657,661
Other fixed income	11,349,343	11,768,099
Total assets, at fair value	12,662,182	12,816,678
Liabilities
Derivative instruments	(11,402)	(20,927)
Total liabilities, at fair value	(10,409,017)	(10,678,588)
Consolidated Funds  | Level III
Assets
Equity securities	351,140	339,183
Partnership interests	241,123	238,673
Collateralized loan obligations	0	0
Other fixed income	859,301	742,952
Total assets, at fair value	1,451,564	1,320,808
Liabilities
Derivative instruments	(3,162)	(3,105)
Total liabilities, at fair value	(3,162)	(3,105)
Consolidated Funds  | Level III  | Transaction price
Assets
Equity securities	85,711	74,041
Other fixed income	1,891
Consolidated Funds  | Level III  | Discounted cash flow
Assets
Equity securities	147,078	123,685
Partnership interests	$ 241,123	$ 238,673
Consolidated Funds  | Level III  | Discounted cash flow | Discount rates
Significant Unobservable Input(s)
Equity securities	20	0.200
Partnership interest	0.184	0.234
Consolidated Funds  | Level III  | Discounted cash flow | Discount rates | Weighted Average
Significant Unobservable Input(s)
Equity securities	20	0.200
Partnership interest	0.184	0.234
Consolidated Funds  | Level III  | Market approach
Assets
Equity securities		$ 1,261
Consolidated Funds  | Level III  | Market approach | EBITDA multiple
Assets
Equity securities	$ 1,196
Consolidated Funds  | Level III  | Market approach | EBITDA multiple | Minimum
Significant Unobservable Input(s)
Equity securities	7.0	1.0
Consolidated Funds  | Level III  | Market approach | EBITDA multiple | Maximum
Significant Unobservable Input(s)
Equity securities	55.8	64.4
Consolidated Funds  | Level III  | Market approach | EBITDA multiple | Weighted Average
Significant Unobservable Input(s)
Equity securities	17.6	17.5
Consolidated Funds  | Level III  | Market approach | Multiple of book value
Assets
Equity securities	$ 116,792	$ 140,185
Consolidated Funds  | Level III  | Market approach | Multiple of book value | Minimum
Significant Unobservable Input(s)
Equity securities	1.0	1.0
Consolidated Funds  | Level III  | Market approach | Multiple of book value | Maximum
Significant Unobservable Input(s)
Equity securities	1.2	1.2
Consolidated Funds  | Level III  | Market approach | Multiple of book value | Weighted Average
Significant Unobservable Input(s)
Equity securities	1.1	1.1
Consolidated Funds  | Level III  | Other
Assets
Equity securities	$ 352
Consolidated Funds  | Level III  | Broker quotes and/or 3rd party pricing services
Assets
Equity securities	11	$ 11
Other fixed income	716,870	614,754
Liabilities
Derivative instruments	(3,162)
Consolidated Funds  | Level III  | Income approach
Assets
Other fixed income	$ 140,539	$ 128,198
Consolidated Funds  | Level III  | Income approach | Yield | Minimum
Significant Unobservable Input(s)
Fixed income securities	1.5	3.5
Consolidated Funds  | Level III  | Income approach | Yield | Maximum
Significant Unobservable Input(s)
Fixed income securities	21.8	16.2
Consolidated Funds  | Level III  | Income approach | Yield | Weighted Average
Significant Unobservable Input(s)
Fixed income securities	0.128	6.7
Ares Management L.P
Assets
Equity securities	$ 115,970	$ 110,389
Partnership interests	8,591	8,591
Total assets, at fair value	181,476	177,059
Liabilities
Contingent consideration	(10,550)	(57,435)
Derivative instruments		(328)
Total liabilities, at fair value	(10,753)	(57,763)
Ares Management L.P | Level III
Assets
Equity securities	114,499	108,949
Partnership interests	2,575	2,575
Total assets, at fair value	168,532	163,921
Liabilities
Contingent consideration	(10,550)	(57,435)
Derivative instruments		0
Total liabilities, at fair value	(10,550)	(57,435)
Ares Management L.P | Level III  | Transaction price
Assets
Equity securities	14,610	14,610
Ares Management L.P | Level III  | Discounted cash flow
Assets
Equity securities	$ 53,462	$ 50,690
Ares Management L.P | Level III  | Discounted cash flow | Discount rates | Minimum
Significant Unobservable Input(s)
Equity securities	0.14	0.140
Ares Management L.P | Level III  | Discounted cash flow | Discount rates | Maximum
Significant Unobservable Input(s)
Equity securities	0.20	0.200
Ares Management L.P | Level III  | Discounted cash flow | Discount rates | Weighted Average
Significant Unobservable Input(s)
Equity securities	0.143	0.143
Ares Management L.P | Level III  | Market approach
Assets
Equity securities	$ 46,426	$ 43,649
Ares Management L.P | Level III  | Market approach | Multiple of book value
Significant Unobservable Input(s)
Equity securities	1.4	1.4
Ares Management L.P | Level III  | Market approach | Multiple of book value | Weighted Average
Significant Unobservable Input(s)
Equity securities	1.4	1.4
Ares Management L.P | Level III  | Other
Assets
Partnership interests	$ 2,575	$ 2,575
Other fixed income	21,583	21,582
Liabilities
Contingent consideration		(47,873)
Ares Management L.P | Level III  | Broker quotes and/or 3rd party pricing services
Assets
Collateralized loan obligations	29,876	30,815
Ares Management L.P | Level III  | Monte Carlo simulation
Liabilities
Contingent consideration	$ (10,550)	$ (9,562)
Ares Management L.P | Level III  | Monte Carlo simulation | Discount rates
Significant Unobservable Input(s)
Contingent consideration	0.085	8.5
Ares Management L.P | Level III  | Monte Carlo simulation | Discount rates | Weighted Average
Significant Unobservable Input(s)
Contingent consideration	0.085	0.085
Ares Management L.P | Level III  | Monte Carlo simulation | Volatility
Significant Unobservable Input(s)
Contingent consideration	0.180	0.18
Ares Management L.P | Level III  | Monte Carlo simulation | Volatility | Weighted Average
Significant Unobservable Input(s)
Contingent consideration	0.180	0.18