GOODWILL AND INTANGIBLE ASSETS - Carrying Value and Amortization (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2016	Mar. 31, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
General, administrative and other expense
Finite-lived intangible assets, net
Amortization expense	$ 7,100
Ares Management L.P.
Finite-lived intangible assets, net
Intangible assets before foreign currency translation	153,739			$ 153,739		$ 205,269
Foreign currency translation	(2,529)			(2,529)		(1,436)
Total intangible assets acquired	151,210			151,210		203,833
Less: accumulated amortization	(80,642)			(80,642)		(118,862)
Finite-lived intangible assets, net	70,568			70,568		84,971
Goodwill	143,855			143,855		144,067
Fully-amortized intangibles, amount removed during the period		$ 51,500
Estimated future annual amortization of finite-lived intangible assets
Finite-lived intangible assets, net	70,568			70,568		84,971
Ares Management L.P. | General, administrative and other expense
Finite-lived intangible assets, net
Amortization expense	7,100		$ 16,600	14,400	$ 27,500
Ares Management L.P. | Credit Group
Finite-lived intangible assets, net
Goodwill	32,196			32,196		32,196
Ares Management L.P. | Real Estate Group
Finite-lived intangible assets, net
Goodwill	53,059			$ 53,059		53,271
Management contracts | Ares Management L.P.
Finite-lived intangible assets, net
Weighted Average Amortization Period				2 years 3 months 18 days
Intangible assets before foreign currency translation	111,939			$ 111,939		163,469
Client relationships | Ares Management L.P.
Finite-lived intangible assets, net
Weighted Average Amortization Period				12 years
Intangible assets before foreign currency translation	38,600			$ 38,600		38,600
Trade Name | Ares Management L.P.
Finite-lived intangible assets, net
Weighted Average Amortization Period				6 years
Intangible assets before foreign currency translation	$ 3,200			$ 3,200		$ 3,200