BUSINESS COMBINATIONS - Narrative (Details) - USD ($) $ in Thousands		10 Months Ended	12 Months Ended
	Mar. 01, 2025	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Asset Acquisition [Line Items]
Goodwill		$ 3,454,107	$ 3,454,107	$ 1,162,636	$ 1,123,976
Compensation and benefits			2,565,625	1,731,747	1,486,698
Equity-based compensation expense			740,549	352,851	255,965
Acquisition costs	$ 68,700
Unvested awards
Asset Acquisition [Line Items]
Equity-based compensation expense			$ 730,448	$ 352,851	255,965
Vested (in shares)			5,393,967
Remaining nonvested (in shares)		19,760,606	19,760,606	17,968,940
Cost not yet recognized		$ 1,532,700	$ 1,532,700
Cost not yet recognized, period for recognition			3 years 3 months 18 days
AOG Unit awards
Asset Acquisition [Line Items]
Equity-based compensation expense			$ 10,101	$ 0	$ 0
Vested (in shares)			100,000
Remaining nonvested (in shares)		200,000	200,000
Cost not yet recognized		$ 26,200	$ 26,200
Cost not yet recognized, period for recognition			2 years 2 months 12 days
GCP International
Asset Acquisition [Line Items]
Business acquisition, measurement period	1 year
Goodwill	$ 2,285,321
Tax deductible amount	$ 1,100,000
Compensation and benefits			$ 48,500
Equity-based compensation expense			110,000
Acquisition costs		35,300	$ 35,300
Revenue		359,700
Net income		114,700
GCP International \| Unvested awards
Asset Acquisition [Line Items]
Vested (in shares)			600,000
Vested in period, withheld for taxes (in shares)			200,000
GCP International \| Equity Awards
Asset Acquisition [Line Items]
Remaining nonvested (in shares)	2,300,000
GCP International \| AOG Unit awards
Asset Acquisition [Line Items]
Remaining nonvested (in shares)	200,000
GCP International \| Unvested GCP Awards
Asset Acquisition [Line Items]
Equity-based compensation expense			$ 113,300
Cost not yet recognized		$ 277,000	$ 277,000
Cost not yet recognized, period for recognition			2 years 9 months 18 days
GCP International \| Management Contracts
Asset Acquisition [Line Items]
Acquired finite lived intangible assets useful life	5 years 9 months 18 days
GCP International \| Client relationships
Asset Acquisition [Line Items]
Acquired finite lived intangible assets useful life	7 years 7 months 6 days

Ares Management Corp 10-K