INCOME TAXES - Income Tax Expense (Benefit) Continuing Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Current expense (benefit):
Federal	$ 93,502	$ 312,330	$ 227,189
State	32,681	79,651	39,149
Foreign	(204)	0	105
Total current expense (benefit)	125,979	391,981	266,443
Deferred expense (benefit):
Federal	(160,955)	(321,244)	(210,378)
State	(61,976)	(74,872)	(16,547)
Foreign	44	64	10
Total deferred benefit	(222,887)	(396,052)	(226,915)
Income tax expense (benefit)	(96,908)	(4,071)	39,528
CSC Holdings
Current expense (benefit):
Federal	88,425	311,628	227,189
State	32,681	79,651	47,331
Foreign	(204)	0	105
Total current expense (benefit)	120,902	391,279	274,625
Deferred expense (benefit):
Federal	(159,145)	(321,245)	(210,378)
State	(61,976)	(78,370)	(21,680)
Foreign	44	64	10
Total deferred benefit	(221,077)	(399,551)	(232,048)
Income tax expense (benefit)	$ (100,175)	$ (8,272)	$ 42,577