EQUITY AND REDEEMABLE INTEREST - Common Stock (Details) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2024 USD ($) vote $ / shares shares	Dec. 31, 2023 $ / shares shares	Dec. 31, 2022 shares	Feb. 28, 2025 USD ($)
Increase (Decrease) in Stockholders' Equity
Beginning balance (in shares)	307,585,576
Stock option exercises (in shares)	79,524
Vesting of restricted unit awards, net of shares withheld for tax (in shares)	2,319,264
Ending balance (in shares)	313,170,171	307,585,576
Ares Operating Group
Increase (Decrease) in Stockholders' Equity
Issuance of common stock (in shares)	3,185,807
Exchanges of common stocks (in shares)	0
Class A Common Stock
Class of Stock [Line Items]
Common stock, par value (in dollars per share) | $ / shares	$ 0.01	$ 0.01
Number of votes per share | vote	1
Authorized amount | $	$ 150.0
Repurchase of stock (in shares)	0	0	0
Increase (Decrease) in Stockholders' Equity
Beginning balance (in shares)	187,069,907
Stock option exercises (in shares)	79,524
Vesting of restricted unit awards, net of shares withheld for tax (in shares)	2,319,264
Ending balance (in shares)	199,872,571	187,069,907
Class A Common Stock | Subsequent event
Class of Stock [Line Items]
Authorized amount | $				$ 750.0
Class A Common Stock | Underwritten
Class of Stock [Line Items]
Number of shares sold (in shares)	3,047,500
Proceeds from issuance of stock | $	$ 407.2
Class A Common Stock | Ares Operating Group
Increase (Decrease) in Stockholders' Equity
Issuance of common stock (in shares)	3,122,628
Exchanges of common stocks (in shares)	7,281,248
Non-voting Common Stock
Class of Stock [Line Items]
Common stock, par value (in dollars per share) | $ / shares	$ 0.01	$ 0.01
Increase (Decrease) in Stockholders' Equity
Beginning balance (in shares)	3,489,911
Stock option exercises (in shares)	0
Vesting of restricted unit awards, net of shares withheld for tax (in shares)	0
Ending balance (in shares)	3,489,911	3,489,911
Non-voting Common Stock | Ares Operating Group
Increase (Decrease) in Stockholders' Equity
Issuance of common stock (in shares)	0
Exchanges of common stocks (in shares)	0
Class B Common Stock
Class of Stock [Line Items]
Common stock, par value (in dollars per share) | $ / shares	$ 0.01	$ 0.01
Number votes per share, mulitplier | vote	4
Increase (Decrease) in Stockholders' Equity
Beginning balance (in shares)	1,000
Stock option exercises (in shares)	0
Vesting of restricted unit awards, net of shares withheld for tax (in shares)	0
Ending balance (in shares)	1,000	1,000
Class B Common Stock | Ares Operating Group
Increase (Decrease) in Stockholders' Equity
Issuance of common stock (in shares)	0
Exchanges of common stocks (in shares)	0
Class C Common Stock
Class of Stock [Line Items]
Common stock, par value (in dollars per share) | $ / shares	$ 0.01	$ 0.01
Increase (Decrease) in Stockholders' Equity
Beginning balance (in shares)	117,024,758
Stock option exercises (in shares)	0
Vesting of restricted unit awards, net of shares withheld for tax (in shares)	0
Ending balance (in shares)	109,806,689	117,024,758
Class C Common Stock | Ares Operating Group
Increase (Decrease) in Stockholders' Equity
Issuance of common stock (in shares)	63,179
Exchanges of common stocks (in shares)	(7,281,248)