SEGMENT REPORTING (Revenue, Expenses and Other Income (Expense) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Segment revenues
Total revenues	$ 13,409	$ 477,197
Total segment revenues	429,420	304,660
Segment expenses
Total expenses	81,959	369,107
Segment other income
Total other income (expense)	(227,863)	27,870
Operating segment
Segment revenues
Performance income—realized	151,770	68,573
Segment expenses
Total performance related compensation - realized	117,993	49,217
Ares Management L.P
Segment revenues
Total revenues	13,409	477,197
Segment expenses
Compensation and benefits	180,084	156,846
General, administrative and other expenses	62,331	51,187
Ares Management L.P | ARCC | Affiliated entity
Segment other income
Management fees, part I fees	43,923	38,393
Ares Management L.P | Management fees
Segment revenues
Total revenues	263,849	224,659
Ares Management L.P | Operating segment
Segment revenues
Performance income—realized	151,770	68,573
Total segment revenues	429,420	304,660
Segment expenses
Compensation and benefits	102,934	90,828
General, administrative and other expenses	23,881	20,694
Total performance related compensation - realized	117,993	49,217
Total expenses	244,808	160,739
Segment other income
Investment income—realized	11,917	15,274
Interest and other investment income—realized	6,183	4,304
Interest expense	(4,329)	(5,193)
Total other income (expense)	13,771	14,385
Ares Management L.P | Operating segment | Management fees
Segment revenues
Total revenues	273,778	233,012
Ares Management L.P | Operating segment | Other fees
Segment revenues
Total revenues	$ 3,872	$ 3,075