EQUITY AND REDEEMABLE INTEREST (Common Stock Offering) (Details) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Class of Stock [Line Items]
AOG Units (in units)	258,445,513		258,445,513		231,883,861
AOG
Class of Stock [Line Items]
Direct Ownership Interest	100.00%		100.00%		100.00%
Ares Owners Holdings, L.P.
Class of Stock [Line Items]
AOG Units (in units)	114,618,803		114,618,803		116,641,833
Daily Average Ownership			46.67%	52.54%
Ares Owners Holdings, L.P. | AOG
Class of Stock [Line Items]
Direct Ownership Interest	44.35%		44.35%		50.30%
Daily Average Ownership	44.43%	51.83%
AOG
Class of Stock [Line Items]
AOG Units (in units)	143,826,710		143,826,710		115,242,028
Daily Average Ownership			53.33%	47.46%
AOG | AOG
Class of Stock [Line Items]
Direct Ownership Interest	55.65%		55.65%		49.70%
Daily Average Ownership	55.57%	48.17%