AFFILIATE AND RELATED PARTY TRANSACTIONS - Revenue and Related Charges (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Related Party Transaction [Line Items]
Revenues	$ 8,954,417	$ 9,237,064	$ 9,647,659
Operating expenses:
Cost of Goods and Services Sold	(2,896,570)	(3,029,842)	(3,205,638)
Other Cost and Expense, Operating	(2,711,828)	(2,646,258)	(2,735,469)
Related Party
Related Party Transaction [Line Items]
Revenues	459	1,471	2,368
Operating expenses:
Operating expenses, net	(57,353)	(70,857)	(26,531)
Other credits	0	0	48
Capital Expenditures	89,946	122,384	91,382
Cost of Goods and Services Sold	(11,645)	(13,794)	(14,321)
Other Cost and Expense, Operating	(45,708)	(57,063)	(12,210)
Operating Costs and Expenses	(56,894)	(69,386)	(24,115)
CSC Holdings
Related Party Transaction [Line Items]
Revenues	8,954,417	9,237,064	9,647,659
Operating expenses:
Cost of Goods and Services Sold	(2,896,570)	(3,029,842)	(3,205,638)
Other Cost and Expense, Operating	$ (2,713,642)	$ (2,646,258)	$ (2,735,469)