INCOME TAXES - Income Tax Expense (Benefit) Continuing Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Current expense (benefit):
Federal	$ 227,189	$ 133,329	$ 168,397
State	54,130	81,076	56,211
Foreign	105	128	(3)
Total current expense (benefit)	281,424	214,533	224,605
Deferred expense (benefit):
Federal	(210,378)	(43,797)	70,989
State	(16,547)	80,356	(30,108)
Foreign	10	(174)	(180)
Total deferred benefit	(226,915)	36,385	40,701
Income tax expense (benefit) before tax benefit relating to uncertain tax positions	54,509	250,918	265,306
Tax benefit relating to uncertain tax positions, adj	(14,981)	44,922	29,669
Income Tax Expense (Benefit)	39,528	295,840	294,975
CSC Holdings
Current expense (benefit):
Federal	227,189	133,329	179,032
State	62,312	88,068	56,211
Foreign	105	128	(3)
Total current expense (benefit)	289,606	221,525	235,240
Deferred expense (benefit):
Federal	(210,378)	(43,797)	70,989
State	(21,680)	69,676	(38,608)
Foreign	10	(174)	(180)
Total deferred benefit	(232,048)	25,705	32,201
Income tax expense (benefit) before tax benefit relating to uncertain tax positions	57,558	247,230	267,441
Tax benefit relating to uncertain tax positions, adj	(14,981)	44,922	29,669
Income Tax Expense (Benefit)	$ 42,577	$ 292,152	$ 297,110