SEGMENT REPORTING (Revenue Reconciliation) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Revenue adjustment
Total revenues	$ 602,758	$ 384,822	$ 616,167	$ 862,019
Principal investment income	(11,107)	(6,940)	(24,878)	(21,325)
Total segment revenue	326,435	286,884	755,855	591,544
Ares Management L.P
Revenue adjustment
Total revenues	602,758	384,822	616,167	862,019
Operating segment | Ares Management L.P
Revenue adjustment
Performance (income) loss-unrealized	(257,303)	(98,662)	130,354	(245,237)
Total segment revenue	326,435	286,884	755,855	591,544
Reconciling items
Revenue adjustment
Principal investment income	(32,957)	(1,579)	43,031	(31,471)
Total segment revenue	(276,323)	(97,938)	139,688	(270,475)
Reconciling items | Non-Controlling interest | Subsidiaries
Revenue adjustment
Total segment revenue	(720)	(289)	(1,485)	(343)
Reconciling items | Performance income reclass
Revenue adjustment
Performance fee reclass	(1,656)	(26)	(3,373)	580
Management fees | Ares Management L.P
Revenue adjustment
Total revenues	266,867	237,846	530,716	462,505
Management fees | Operating segment | Ares Management L.P
Revenue adjustment
Total revenues	277,672	246,279	551,450	479,291
Management fees | Consolidated Funds | Eliminations
Revenue adjustment
Total segment revenue	11,380	8,735	21,882	17,148
Incentive fees | Ares Management L.P
Revenue adjustment
Total revenues	331	10,220	(2,918)	27,035
Incentive fees | Consolidated Funds | Eliminations
Revenue adjustment
Total revenues	(25)	4,750	(70)	5,184
Administrative, transaction and other fees
Revenue adjustment
Total revenues	0	0	0
Administrative, transaction and other fees | Ares Management L.P
Revenue adjustment
Total revenues	8,637	11,200	19,045	20,871
Administrative, transaction and other fees | Reconciling items
Revenue adjustment
Total revenues	(8,838)	(6,602)	(18,499)	(13,204)
Administrative, transaction and other fees | Consolidated Funds | Reconciling items
Revenue adjustment
Total revenues	4,484	0	7,801	0
Principal investment income (loss) | Ares Management L.P
Revenue adjustment
Total revenues	23,645	5,844	(3,078)	34,603
Principal investment income (loss) | Reconciling items
Revenue adjustment
Principal investment income	$ (23,645)	$ (5,844)	$ 3,078	$ (34,603)