GOODWILL, INTANGIBLE ASSETS, NET, AND DIGITAL ASSETS HELD - Additional information (Details) $ / shares in Units, $ in Millions	1 Months Ended			12 Months Ended
	May 31, 2025	May 31, 2024 USD ($)	Oct. 31, 2022 token $ / shares	Dec. 31, 2025 USD ($) token	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Intangible Assets
Number of token issued in a exchange or transaction | token				990,000
Revenues				$ 4,714.2	$ 4,094.5	$ 3,773.5
Recognized gain on sale of tokens				0.9
Market data fees
Intangible Assets
Revenues				$ 326.6	$ 294.8	$ 293.7
Data Provider Agreement with Pyth Data Association | Cboe Netherlands Services Company B.V
Intangible Assets
Number of token issued in a exchange or transaction | token			16,666,666
Term of restricted tokens issued (in years)			4 years
Percentage of tranche unlocked over a period for restricted tokens issued	25.00%	25.00%
Historical value of tokens (in dollars per share) | $ / shares			$ 0.06
Number of tokens sold | token				8,700,000
Data Provider Agreement with Pyth Data Association | Cboe Netherlands Services Company B.V | Market data fees
Intangible Assets
Revenues		$ 1.0