SUPPLEMENTAL CASH FLOW INFORMATION (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Non-Cash Investing and Financing Activities:
Property and equipment accrued but unpaid	$ 317,000	$ 496,135	$ 335,680
Notes payable for the purchase of equipment and other assets	213,325	132,452	89,898
Right-of-use assets acquired in exchange for finance lease obligations	133,056	160,542	145,047
Payable relating to acquisition of noncontrolling interest	7,036	0	0
Other non-cash investing and financing transactions	249	1,117	500
Contributions from (distributions to) parent, net	8,183	7,015	(19,500)
Supplemental Data:
Cash interest paid, net of capitalized interest		1,247,747	1,178,088
Income taxes paid, net		253,962	263,589
CSC Holdings
Supplemental Data:
Cash interest paid, net of capitalized interest	1,582,646	1,247,747	1,178,088
Income taxes paid, net	$ 200,295	$ 253,962	$ 263,589