SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2023 USD ($) vote shares	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Class of Stock [Line Items]
Advertising costs	$ 253,777	$ 299,590	$ 274,639
Concentration Risk, Customer	10	10	10
Document Period End Date	Dec. 31, 2023
concentration of customer to trade receivables	10.00%	10.00%
CSC Holdings
Class of Stock [Line Items]
Membership units outstanding | shares	100
Distributions to parent	$ 1,793	$ 170	$ 763,435
Common Class A
Class of Stock [Line Items]
Common stock number of votes per share | vote	1
Common Class B
Class of Stock [Line Items]
Common stock number of votes per share | vote	25
Common stock conversion ratio	1
Minimum | Customer Contracts
Class of Stock [Line Items]
Enterprise Contract Life	3 years
Maximum | Customer Contracts
Class of Stock [Line Items]
Enterprise Contract Life	5 years
Franchise
Class of Stock [Line Items]
Franchise fees and other taxes and fees	$ 219,988	$ 232,795	$ 257,364