EQUITY COMPENSATION - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Jan. 01, 2024
Equity compensation
Net cash proceeds from exercises of stock options	$ 1.5
Tax benefits of exercises	$ 1.4
Class A Common Stock
Equity compensation
Shares delivered in period (in shares)	2,300,000	2,200,000
Restricted units
Equity compensation
Shares delivered in period (in shares)	4,200,000	3,800,000
Cost not yet recognized	$ 909.7
Cost not yet recognized, period for recognition	3 years 6 months
Restricted units | Minimum
Equity compensation
Annual award vesting percentage	25.00%
Restricted units | Maximum
Equity compensation
Annual award vesting percentage	33.30%
Options
Equity compensation
Shares purchased (in shares)	1
Ares Management L.P
Equity compensation
Total number of shares available for grant under the equity incentive plan (in shares)	62,634,307		69,122,318