EARNINGS PER COMMON UNIT (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Basic
Net income attributable to Ares Management, L.P. common unitholders	$ 34,171	$ 22,413	$ 44,453	$ (46,559)	$ 28,594	$ 36,554	$ 37,574	$ (3,090)	$ 54,478	$ 99,632	$ 19,378
Earnings distributed to participating securities (restricted units)									(3,588)	(1,257)	(646)
Preferred stock dividends									0	(8)	(15)
Net income available to common unitholders									$ 50,890	$ 98,367	$ 18,717
Basic weighted-average common units (in units)									81,838,007	80,749,671	80,673,360
Earnings per common unit, basic (in dollars per unit)	$ 0.40	$ 0.26	$ 0.54	$ (0.58)	$ 0.35	$ 0.45	$ 0.46	$ (0.04)	$ 0.62	$ 1.22	$ 0.23
Diluted
Net income attributable to Ares Management, L.P. common unitholders	$ 34,171	$ 22,413	$ 44,453	$ (46,559)	$ 28,594	$ 36,554	$ 37,574	$ (3,090)	$ 54,478	$ 99,632	$ 19,378
Earnings distributed to participating securities (restricted units)									(3,588)	0	(646)
Preferred stock dividends									0	(8)	(15)
Net income available to common unitholders, diluted									$ 50,890	$ 99,624	$ 18,717
Diluted weighted-average common units									81,838,007	82,937,030	80,673,360
Earnings per common unit, diluted (in dollars per unit)	$ 0.39	$ 0.26	$ 0.53	$ (0.58)	$ 0.34	$ 0.43	$ 0.46	$ (0.04)	$ 0.62	$ 1.20	$ 0.23
Restricted units
Diluted
Restricted units									0	2,187,359	0