EQUITY AND REDEEMABLE INTEREST - Common Stock (Details) - USD ($) $ / shares in Units, $ in Millions			1 Months Ended	9 Months Ended
	Jul. 11, 2024	Jun. 12, 2024	Jul. 11, 2024	Sep. 30, 2024	Sep. 30, 2023	Jan. 31, 2024	Dec. 31, 2023
Increase (Decrease) in Stockholders' Equity
Beginning balance (in shares)				307,585,576
Exchanges of common stocks (in shares)				0
Stock option exercises (in shares)				79,524
Vesting of restricted stock awards, net of shares withheld for tax (in shares)				2,224,962
Ending balance (in shares)				313,000,741
Ares Operating Group
Increase (Decrease) in Stockholders' Equity
Issuance of common stock (in shares)				3,110,679
Class A Common Stock
Class of Stock [Line Items]
Common stock, par value (in dollars per share)				$ 0.01			$ 0.01
Authorized amount						$ 150.0
Repurchase of stock (in shares)				0	0
Increase (Decrease) in Stockholders' Equity
Beginning balance (in shares)				187,069,907
Exchanges of common stocks (in shares)				5,912,781
Stock option exercises (in shares)				79,524
Vesting of restricted stock awards, net of shares withheld for tax (in shares)				2,224,962
Ending balance (in shares)				198,334,674
Class A Common Stock | Ares Operating Group
Increase (Decrease) in Stockholders' Equity
Issuance of common stock (in shares)				3,047,500
Class A Common Stock | Underwritten
Class of Stock [Line Items]
Number of shares sold (in shares)	397,500	2,650,000
Option to purchase additional shares, number of days	30 days
Proceeds from issuance of stock			$ 407.2
Non-voting Common Stock
Class of Stock [Line Items]
Common stock, par value (in dollars per share)				$ 0.01			0.01
Increase (Decrease) in Stockholders' Equity
Beginning balance (in shares)				3,489,911
Exchanges of common stocks (in shares)				0
Stock option exercises (in shares)				0
Vesting of restricted stock awards, net of shares withheld for tax (in shares)				0
Ending balance (in shares)				3,489,911
Non-voting Common Stock | Ares Operating Group
Increase (Decrease) in Stockholders' Equity
Issuance of common stock (in shares)				0
Class B Common Stock
Class of Stock [Line Items]
Common stock, par value (in dollars per share)				$ 0.01			0.01
Increase (Decrease) in Stockholders' Equity
Beginning balance (in shares)				1,000
Exchanges of common stocks (in shares)				0
Stock option exercises (in shares)				0
Vesting of restricted stock awards, net of shares withheld for tax (in shares)				0
Ending balance (in shares)				1,000
Class B Common Stock | Ares Operating Group
Increase (Decrease) in Stockholders' Equity
Issuance of common stock (in shares)				0
Class C Common Stock
Class of Stock [Line Items]
Common stock, par value (in dollars per share)				$ 0.01			$ 0.01
Increase (Decrease) in Stockholders' Equity
Beginning balance (in shares)				117,024,758
Exchanges of common stocks (in shares)				(5,912,781)
Stock option exercises (in shares)				0
Vesting of restricted stock awards, net of shares withheld for tax (in shares)				0
Ending balance (in shares)				111,175,156
Class C Common Stock | Ares Operating Group
Increase (Decrease) in Stockholders' Equity
Issuance of common stock (in shares)				63,179