DEBT (Debt Issuance Costs) (Details) - USD ($)		3 Months Ended
	Feb. 24, 2017	Mar. 31, 2017	Feb. 28, 2017	Dec. 31, 2016
Credit Facility
DEBT
Maximum borrowing capacity	$ 1,040,000,000.00			$ 1,030,000,000.00
Unused commitment fees (as a percent)	0.20%
Ares Management L.P | Credit Facility
DEBT
Maximum borrowing capacity			$ 1,040,000,000.00
Unused commitment fees (as a percent)		0.20%
Debt Issuance Costs [Roll Forward]
Unamortized debt issuance costs as of December 31, 2016		$ 4,800,000
Debt issuance costs incurred		3,353,000
Amortization of debt issuance costs		(473,000)
Unamortized debt issuance costs as of March 31, 2017		7,680,000
Ares Management L.P | Senior Notes
Debt Issuance Costs [Roll Forward]
Unamortized debt issuance costs as of December 31, 2016		1,803,000
Debt issuance costs incurred		0
Amortization of debt issuance costs		(58,000)
Unamortized debt issuance costs as of March 31, 2017		1,745,000
Ares Management L.P | Term Loan
Debt Issuance Costs [Roll Forward]
Unamortized debt issuance costs as of December 31, 2016		526,000
Debt issuance costs incurred		330,000
Amortization of debt issuance costs		(13,000)
Unamortized debt issuance costs as of March 31, 2017		$ 843,000
LIBOR | Credit Facility
DEBT
Interest rate spread (as a percent)	1.50%
LIBOR | Ares Management L.P | Credit Facility
DEBT
Interest rate spread (as a percent)		1.50%