Consolidated Statements of Operations (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Affiliated entity \| ARCC
Management fees, part I fees	$ 105,467	$ 121,181	$ 121,491

Amount of fees earned from 1) providing investment advice and research to customers, and 2) fixed fee revenue for the management of an investment fund portfolio. Excludes distribution and servicing and performance fees.

No definition available.

Name:	ares_AssetManagementAndInvestmentAdvisoryFees
Namespace Prefix:	ares_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration