SEGMENT REPORTING (Other Income (Expense)) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total consolidated other income (expense)	$ 59,222	$ (15,451)
Ares Management L.P
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total other income (expense)	(2,135)	(3,359)
Consolidated Funds
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total other income (expense)	10,170	7,332
Operating segment
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total other income (expense)	10,920	(4,782)
Offering costs	(660)	0
Operating segment | Ares Management L.P
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total other income (expense)	10,920	(4,782)
Total consolidated other income (expense)	10,920	(4,782)
Reconciling items
Segment Reporting, Other Significant Reconciling Item [Line Items]
Changes in fair value of contingent consideration	20,248	(228)
Offering costs	(660)	0
Total consolidated other income (expense)	48,302	(10,669)
Reconciling items | AREA Sponsor Holdings, LLC
Segment Reporting, Other Significant Reconciling Item [Line Items]
Performance fee reclass	24	572
Reconciling items | Consolidated Funds
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total consolidated other income (expense)	38,445	(22,803)
Eliminations
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total other income (expense)	(1,174)	(1,366)
Total consolidated other income (expense)	(10,605)	12,239
Eliminations | Consolidated Funds
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total other income (expense)	2,164	2,058
Total consolidated other income (expense)	(10,605)	12,239
OMG
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total other income (expense)	850	(449)
Total consolidated other income (expense)	$ 850	$ (449)