DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS - Schedule of Interest Rate Derivatives (Details) - Interest Rate Swap - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2025
Derivative Instrument Maturity Date 2026, Fixed 2.161% | Cablevision Lightpath
Derivative [Line Items]
Derivative, Notional Amount		$ 300,000
Fixed interest rate		2.11%
Derivative Instrument Maturity Date 2026, Fixed 3.979% | Cablevision Lightpath
Derivative [Line Items]
Derivative, Notional Amount		$ 95,000
Fixed interest rate		3.979%
Derivative Instruments Maturing 2025 and 2026 | CSC Holdings
Derivative [Line Items]
Derivative, Notional Amount	$ 3,000,000
Cash received from interest rate swap unwind	$ 43,182
Derivative Instrument Maturity Date 2026, Fixed 3.523% | Cablevision Lightpath
Derivative [Line Items]
Derivative, Notional Amount		$ 180,000
Fixed interest rate		3.523%