CSC HOLDINGS - CONSOLIDATED STATEMENT OF OPERATIONS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Revenue (including revenue from affiliates of $459, $1,471 and $2,368, respectively) (See Note 16)	$ 8,954,417	$ 9,237,064	$ 9,647,659
Costs and Expenses [Abstract]
Programming and other direct costs (including charges from affiliates of $11,645, $13,794 and $14,321, respectively) (See Note 16)	2,896,570	3,029,842	3,205,638
Other operating expenses (including charges from affiliates of $45,708, $57,063 and $12,210 respectively) (See Note 16)	2,711,828	2,646,258	2,735,469
Restructuring, impairments and other operating items	23,696	214,727	130,285
Depreciation and amortization	1,642,231	1,644,297	1,773,673
Total operating expenses	7,274,325	7,535,124	7,845,065
Operating Income (Loss), Total	1,680,092	1,701,940	1,802,594
Nonoperating Income (Expense) [Abstract]
Interest expense, net	(1,763,166)	(1,639,120)	(1,331,636)
Gain (loss) on derivative contracts, net	0	(166,489)	425,815
Gain on interest rate swap contracts, net	18,632	32,664	271,788
Gain (loss) on extinguishment of debt and write-off of deferred financing costs	(12,901)	4,393	(575)
Other income (expense), net	(5,675)	4,940	8,535
Total other income (expense)	(1,762,440)	(1,583,375)	(1,285,865)
Income (loss) before income taxes	(82,348)	118,565	516,729
Income Tax Expense (Benefit)	4,071	(39,528)	(295,840)
Net income (loss)	(78,277)	79,037	220,889
Comprehensive income attributable to noncontrolling interests	(24,641)	(25,839)	(26,326)
Net income (loss) attributable to CSC Holdings, LLC sole member	(102,918)	53,198	194,563
Related Party
Revenue (including revenue from affiliates of $459, $1,471 and $2,368, respectively) (See Note 16)	459	1,471	2,368
Costs and Expenses [Abstract]
Programming and other direct costs (including charges from affiliates of $11,645, $13,794 and $14,321, respectively) (See Note 16)	11,645	13,794	14,321
Other operating expenses (including charges from affiliates of $45,708, $57,063 and $12,210 respectively) (See Note 16)	45,708	57,063	12,210
CSC Holdings
Revenue (including revenue from affiliates of $459, $1,471 and $2,368, respectively) (See Note 16)	8,954,417	9,237,064	9,647,659
Costs and Expenses [Abstract]
Programming and other direct costs (including charges from affiliates of $11,645, $13,794 and $14,321, respectively) (See Note 16)	2,896,570	3,029,842	3,205,638
Other operating expenses (including charges from affiliates of $45,708, $57,063 and $12,210 respectively) (See Note 16)	2,713,642	2,646,258	2,735,469
Restructuring, impairments and other operating items	23,696	214,727	130,285
Depreciation and amortization	1,642,231	1,644,297	1,773,673
Total operating expenses	7,276,139	7,535,124	7,845,065
Operating Income (Loss), Total	1,678,278	1,701,940	1,802,594
Nonoperating Income (Expense) [Abstract]
Interest expense, net	(1,764,696)	(1,639,120)	(1,331,636)
Gain (loss) on derivative contracts, net	0	(166,489)	425,815
Gain on interest rate swap contracts, net	18,632	32,664	271,788
Gain (loss) on extinguishment of debt and write-off of deferred financing costs	(12,901)	4,393	(575)
Other income (expense), net	(5,675)	4,940	8,535
Total other income (expense)	(1,763,970)	(1,583,375)	(1,285,865)
Income (loss) before income taxes	(85,692)	118,565	516,729
Income Tax Expense (Benefit)	8,272	(42,577)	(292,152)
Net income (loss)	(77,420)	75,988	224,577
Comprehensive income attributable to noncontrolling interests	(24,641)	(25,839)	(26,326)
Net income (loss) attributable to CSC Holdings, LLC sole member	$ (102,061)	$ 50,149	$ 198,251