DEBT (Debt Issuance Costs) (Details) - Ares Management L.P $ in Thousands	6 Months Ended
Jun. 30, 2018 USD ($)
Credit Facility
Debt Issuance Costs [Roll Forward]
Unamortized debt issuance costs as of December 31, 2017	$ 6,543
Debt issuance costs incurred	0
Amortization of debt issuance costs	(786)
Debt extinguishment expense	0
Unamortized debt issuance costs as of June 30, 2018	5,757
Senior Notes
Debt Issuance Costs [Roll Forward]
Unamortized debt issuance costs as of December 31, 2017	1,571
Debt issuance costs incurred	0
Amortization of debt issuance costs	(121)
Debt extinguishment expense	0
Unamortized debt issuance costs as of June 30, 2018	1,450
Term Loans
Debt Issuance Costs [Roll Forward]
Unamortized debt issuance costs as of December 31, 2017	1,171
Debt issuance costs incurred	173
Amortization of debt issuance costs	(56)
Debt extinguishment expense	(1,288)
Unamortized debt issuance costs as of June 30, 2018	0
Repurchase Agreement Loan
Debt Issuance Costs [Roll Forward]
Unamortized debt issuance costs as of December 31, 2017	0
Debt issuance costs incurred	259
Amortization of debt issuance costs	(7)
Debt extinguishment expense	(252)
Unamortized debt issuance costs as of June 30, 2018	$ 0

Debt Issuance Costs [Roll Forward]

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- Definition

Amount of amortization expense attributable to debt issuance costs.

+ References

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- Definition

Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

+ References

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- Definition

The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt.

+ References

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- Definition

Write-off of amounts previously capitalized as debt issuance cost in an extinguishment of debt.

+ References

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