FAIR VALUE - Assets and Liabilities Measured at Fair Value (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Consolidated Funds
Assets, at fair value
Collateralized loan obligations and other fixed income	$ 11,768,099	$ 10,410,442
Common stock and other equity securities	340,272	227,031
Partnership interests	708,307	239,624
Total investments, at fair value	12,816,678	10,877,097
Total assets, at fair value	12,816,678	10,878,201
Liabilities, at fair value
Derivative liabilities	(20,927)
Loan obligations of CLOs	(10,657,661)	(9,958,076)
Total liabilities, at fair value	(10,678,588)	(9,958,120)
Consolidated Funds | Warrants
Liabilities, at fair value
Derivative liabilities	(17,822)
Consolidated Funds | Asset swaps
Assets, at fair value
Total derivative assets, at fair value		1,104
Liabilities, at fair value
Derivative liabilities	(3,105)	(44)
Consolidated Funds | Bonds
Assets, at fair value
Collateralized loan obligations and other fixed income	857,125	397,494
Consolidated Funds | Loans
Assets, at fair value
Collateralized loan obligations and other fixed income	9,910,689	10,012,948
Consolidated Funds | U.S. Treasury securities
Assets, at fair value
Collateralized loan obligations and other fixed income	1,000,285
Consolidated Funds | Level I
Assets, at fair value
Collateralized loan obligations and other fixed income	1,000,285	0
Common stock and other equity securities	956	5,749
Partnership interests	0	0
Total investments, at fair value		5,749
Total assets, at fair value	1,001,241	5,749
Liabilities, at fair value
Derivative liabilities	(17,822)
Loan obligations of CLOs	0	0
Total liabilities, at fair value	(17,822)	0
Consolidated Funds | Level I  | Warrants
Liabilities, at fair value
Derivative liabilities	(17,822)
Consolidated Funds | Level I  | Asset swaps
Assets, at fair value
Total derivative assets, at fair value		0
Liabilities, at fair value
Derivative liabilities	0	0
Consolidated Funds | Level I  | Bonds
Assets, at fair value
Collateralized loan obligations and other fixed income	0	0
Consolidated Funds | Level I  | Loans
Assets, at fair value
Collateralized loan obligations and other fixed income	0	0
Consolidated Funds | Level I  | U.S. Treasury securities
Assets, at fair value
Collateralized loan obligations and other fixed income	1,000,285
Consolidated Funds | Level II
Assets, at fair value
Collateralized loan obligations and other fixed income	10,024,862	9,868,136
Common stock and other equity securities	133	239
Partnership interests	0	0
Total investments, at fair value		9,868,375
Total assets, at fair value	10,024,995	9,868,375
Liabilities, at fair value
Derivative liabilities	0
Loan obligations of CLOs	(10,657,661)	(9,958,076)
Total liabilities, at fair value	(10,657,661)	(9,958,076)
Consolidated Funds | Level II  | Warrants
Liabilities, at fair value
Derivative liabilities	0
Consolidated Funds | Level II  | Asset swaps
Assets, at fair value
Total derivative assets, at fair value		0
Liabilities, at fair value
Derivative liabilities	0	0
Consolidated Funds | Level II  | Bonds
Assets, at fair value
Collateralized loan obligations and other fixed income	525,393	397,485
Consolidated Funds | Level II  | Loans
Assets, at fair value
Collateralized loan obligations and other fixed income	9,499,469	9,470,651
Consolidated Funds | Level II  | U.S. Treasury securities
Assets, at fair value
Collateralized loan obligations and other fixed income	0
Consolidated Funds | Level III
Assets, at fair value
Collateralized loan obligations and other fixed income	742,952	542,306
Common stock and other equity securities	339,183	221,043
Partnership interests	238,673	231,857
Total investments, at fair value		995,206
Total assets, at fair value	1,320,808	996,310
Liabilities, at fair value
Derivative liabilities	(3,105)	(44)
Loan obligations of CLOs	0	0
Total liabilities, at fair value	(3,105)	(44)
Consolidated Funds | Level III  | Warrants
Liabilities, at fair value
Derivative liabilities	0
Consolidated Funds | Level III  | Asset swaps
Assets, at fair value
Total derivative assets, at fair value		1,104
Liabilities, at fair value
Derivative liabilities	(3,105)	(44)
Consolidated Funds | Level III  | Bonds
Assets, at fair value
Collateralized loan obligations and other fixed income	331,732	9
Consolidated Funds | Level III  | Loans
Assets, at fair value
Collateralized loan obligations and other fixed income	411,220	542,297
Consolidated Funds | Level III  | U.S. Treasury securities
Assets, at fair value
Collateralized loan obligations and other fixed income	0
Consolidated Funds | Investments Measured at NAV
Assets, at fair value
Collateralized loan obligations and other fixed income	0	0
Common stock and other equity securities	0	0
Partnership interests	469,634	7,767
Total investments, at fair value		7,767
Total assets, at fair value	469,634	7,767
Liabilities, at fair value
Derivative liabilities	0
Loan obligations of CLOs	0	0
Total liabilities, at fair value	0	0
Consolidated Funds | Investments Measured at NAV | Warrants
Liabilities, at fair value
Derivative liabilities	0
Consolidated Funds | Investments Measured at NAV | Asset swaps
Assets, at fair value
Total derivative assets, at fair value		0
Liabilities, at fair value
Derivative liabilities	0	0
Consolidated Funds | Investments Measured at NAV | Bonds
Assets, at fair value
Collateralized loan obligations and other fixed income	0	0
Consolidated Funds | Investments Measured at NAV | Loans
Assets, at fair value
Collateralized loan obligations and other fixed income	0	0
Consolidated Funds | Investments Measured at NAV | U.S. Treasury securities
Assets, at fair value
Collateralized loan obligations and other fixed income	0
Ares Management L.P
Assets, at fair value
Common stock and other equity securities	110,389	89,419
Partnership interests	8,591	3,784
Total investments, at fair value	171,377	146,552
Total assets, at fair value	177,059	147,992
Liabilities, at fair value
Derivative liabilities		(1,565)
Contingent consideration	(57,435)
Total liabilities, at fair value	(57,763)	(1,565)
Ares Management L.P | Derivatives-foreign currency forward contracts and interest rate swaps
Assets, at fair value
Total derivative assets, at fair value	5,682
Ares Management L.P | Derivatives-foreign exchange contracts
Assets, at fair value
Total derivative assets, at fair value		1,440
Liabilities, at fair value
Derivative liabilities	(328)
Ares Management L.P | Collateralized loan obligations and other fixed income, at fair value
Assets, at fair value
Collateralized loan obligations and other fixed income	52,397	53,349
Ares Management L.P | Level I
Assets, at fair value
Common stock and other equity securities	0	0
Partnership interests	0	0
Total investments, at fair value	0	0
Total assets, at fair value	0	0
Liabilities, at fair value
Derivative liabilities		0
Contingent consideration	0
Total liabilities, at fair value	0	0
Ares Management L.P | Level I  | Derivatives-foreign currency forward contracts and interest rate swaps
Assets, at fair value
Total derivative assets, at fair value	0
Ares Management L.P | Level I  | Derivatives-foreign exchange contracts
Assets, at fair value
Total derivative assets, at fair value		0
Liabilities, at fair value
Derivative liabilities	0
Ares Management L.P | Level I  | Collateralized loan obligations and other fixed income, at fair value
Assets, at fair value
Collateralized loan obligations and other fixed income	0	0
Ares Management L.P | Level II
Assets, at fair value
Common stock and other equity securities	1,440	1,007
Partnership interests	0	0
Total investments, at fair value	1,440	1,007
Total assets, at fair value	7,122	2,447
Liabilities, at fair value
Derivative liabilities		(1,565)
Contingent consideration	0
Total liabilities, at fair value	(328)	(1,565)
Ares Management L.P | Level II  | Derivatives-foreign currency forward contracts and interest rate swaps
Assets, at fair value
Total derivative assets, at fair value	5,682
Ares Management L.P | Level II  | Derivatives-foreign exchange contracts
Assets, at fair value
Total derivative assets, at fair value		1,440
Liabilities, at fair value
Derivative liabilities	(328)
Ares Management L.P | Level II  | Collateralized loan obligations and other fixed income, at fair value
Assets, at fair value
Collateralized loan obligations and other fixed income	0	0
Ares Management L.P | Level III
Assets, at fair value
Common stock and other equity securities	108,949	88,412
Partnership interests	2,575	2,575
Total investments, at fair value	163,921	144,336
Total assets, at fair value	163,921	144,336
Liabilities, at fair value
Derivative liabilities		0
Contingent consideration	(57,435)
Total liabilities, at fair value	(57,435)	0
Ares Management L.P | Level III  | Derivatives-foreign currency forward contracts and interest rate swaps
Assets, at fair value
Total derivative assets, at fair value	0
Ares Management L.P | Level III  | Derivatives-foreign exchange contracts
Assets, at fair value
Total derivative assets, at fair value		0
Liabilities, at fair value
Derivative liabilities	0
Ares Management L.P | Level III  | Collateralized loan obligations and other fixed income, at fair value
Assets, at fair value
Collateralized loan obligations and other fixed income	52,397	53,349
Ares Management L.P | Investments Measured at NAV
Assets, at fair value
Common stock and other equity securities	0	0
Partnership interests	6,016	1,209
Total investments, at fair value	6,016	1,209
Total assets, at fair value	6,016	1,209
Liabilities, at fair value
Derivative liabilities		0
Contingent consideration	0
Total liabilities, at fair value	0	0
Ares Management L.P | Investments Measured at NAV | Derivatives-foreign currency forward contracts and interest rate swaps
Assets, at fair value
Total derivative assets, at fair value	0
Ares Management L.P | Investments Measured at NAV | Derivatives-foreign exchange contracts
Assets, at fair value
Total derivative assets, at fair value		0
Liabilities, at fair value
Derivative liabilities	0
Ares Management L.P | Investments Measured at NAV | Collateralized loan obligations and other fixed income, at fair value
Assets, at fair value
Collateralized loan obligations and other fixed income	$ 0	$ 0