SEGMENT REPORTING (Revenue, Expenses and Other Income (Expense) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Segment revenues
Other fees	$ 0
Total revenues	533,890	$ 369,535	$ 775,547	$ 505,550
Segment expenses
Total expenses	448,197	303,935	939,664	433,473
Segment other income
Total other income	29,387	17,406	88,609	1,955
Operating segment
Segment revenues
Performance fees—realized	74,130	81,604	82,935	87,953
Performance fees—unrealized	263,629	123,314	312,890	85,966
Segment expenses
Performance fee compensation—realized	52,973	51,031	58,274	53,014
Total performance fee compensation - unrealized	208,732	100,865	244,133	77,552
Ares Management L.P
Segment revenues
Management fees	180,768	158,521	352,813	316,954
Other fees	15,098	7,863	29,538	15,392
Total revenues	533,890	369,535	775,547	505,550
Segment expenses
Compensation and benefits	131,219	112,654	255,558	223,333
General, administrative and other expenses	50,751	38,686	98,089	78,648
Ares Management L.P | Operating segment
Segment revenues
Management fees	185,560	162,612	362,341	325,280
Other fees	6,020	1,319	10,854	2,026
Performance fees—realized	74,130	81,604	82,935	87,953
Performance fees—unrealized	263,629	123,314	312,890	85,966
Total revenues	529,339	368,849	769,020	501,225
Segment expenses
Compensation and benefits	72,856	72,065	147,152	141,573
General, administrative and other expenses	15,385	12,634	30,280	24,625
Performance fee compensation—realized	52,973	51,031	58,274	53,014
Total performance fee compensation - unrealized	208,732	100,865	244,133	77,552
Total expenses	349,946	236,595	479,839	296,764
Segment other income
Investment income—realized	5,615	3,821	8,295	3,739
Investment income (loss)—unrealized	23,038	6,385	35,729	(2,568)
Interest and other investment income (expense)	6,475	16,340	6,427	24,720
Interest expense	(4,891)	(4,119)	(9,294)	(8,246)
Total other income	30,237	22,427	41,157	17,645
Affiliated entity | ARCC | Ares Management L.P
Segment revenues
Management fees	$ 19,143	$ 28,999	$ 52,400	$ 57,624