SEGMENT REPORTING (Narrative) (Details) $ in Billions	6 Months Ended
Jun. 30, 2018 USD ($) segment group fund
Segment reporting
Number operating segments \| segment	3
Ares Management L.P \| Credit Group
Segment reporting
Assets under management \| $	$ 86.9
Number of funds managed	152
Ares Management L.P \| Private Equity
Segment reporting
Assets under management \| $	$ 23.6
Number of private equity commingled funds focus North America and Europe	5
Number of funds focused on U.S. energy and power assets	6
Number of co-investment vehicles focused on U.S. energy and power assets	6
Number of special situation funds	3
Ares Management L.P \| Real Estate
Segment reporting
Assets under management \| $	$ 10.9
Number of funds managed	43
Ares Management L.P \| OMG
Segment reporting
Number of independent shared resource groups to support entity's operating segments \| group	6
Greater China \| Ares Management L.P \| Private Equity
Segment reporting
Number of commingled funds	3

Represents information pertaining to the number of co-investment vehicles focused on energy and power assets.

No definition available.

Name:	ares_NumberOfCoInvestmentVehiclesFocusedOnEnergyAndPowerAssets
Namespace Prefix:	ares_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the number of commingled funds

+ References

No definition available.

+ Details

Name:	ares_NumberOfCommingledFunds
Namespace Prefix:	ares_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents information pertaining to the number of funds focused on energy and power assets.

+ References

No definition available.

+ Details

Name:	ares_NumberOfFundsFocusedOnEnergyAndPowerAssets
Namespace Prefix:	ares_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the number of funds managed by the entity.

+ References

No definition available.

+ Details

Name:	ares_NumberOfFundsManaged
Namespace Prefix:	ares_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the number of independent shared resource groups to support the entity's operating segments.

+ References

No definition available.

+ Details

Name:	ares_NumberOfIndependentSharedResourceGroupsToSupportOperatingSegmentsOfEntity
Namespace Prefix:	ares_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the number of corporate private equity commingled funds focused on growth opportunities in North America and Europe.

+ References

No definition available.

+ Details

Name:	ares_NumberOfPrivateEquityCommingledFundsFocusNorthAmericaAndEurope
Namespace Prefix:	ares_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the number of special situation funds being managed.

+ References

No definition available.

+ Details

Name:	ares_NumberOfSpecialSituationFunds
Namespace Prefix:	ares_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

The carrying amount of assets an investment adviser manages on behalf of investors.

+ References

No definition available.

+ Details

Name:	us-gaap_AssetsUnderManagementCarryingAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

+ References

No definition available.

+ Details

Name:	us-gaap_NumberOfOperatingSegments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_SegmentReportingInformationLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	srt_ConsolidatedEntitiesAxis=srt_ParentCompanyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=ares_CreditGroupMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=ares_PrivateEquityGroupMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=ares_RealEstateGroupMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_ConsolidationItemsAxis=us-gaap_CorporateNonSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementGeographicalAxis=country_CN
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: