CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Income Statement [Abstract]
Revenue (including revenue from affiliates of $118 and $210, respectively) (See Note 14)	$ 2,152,282	$ 2,250,935
Operating expenses:
Programming and other direct costs (including charges from affiliates of $1,598 and $3,355, respectively) (See Note 14)	670,531	743,887
Other operating expenses (including charges from affiliates of $12,922 and $12,289, respectively) (See Note 14)	698,186	674,250
Restructuring, impairments and other operating items (See Note 7)	21,622	51,253
Depreciation and amortization	418,485	388,391
Total operating expenses	1,808,824	1,857,781
Operating income	343,458	393,154
Other income (expense):
Interest expense, net	(428,016)	(437,141)
Gain on investments and sale of affiliate interests	5	292
Gain (loss) on interest rate swap contracts, net	(1,719)	42,303
Loss on extinguishment of debt and write-off of deferred financing costs	0	(7,035)
Other expense, net	(963)	(1,545)
Total other income (expense)	(430,693)	(403,126)
Income (loss) before income taxes	(87,235)	(9,972)
Income tax benefit (expense)	15,964	(2,924)
Net loss	(71,271)	(12,896)
Net income attributable to noncontrolling interests	(4,405)	(8,297)
Net income (loss) attributable to CSC Holdings, LLC sole member	$ (75,676)	$ (21,193)
Net loss per share:
Basic and diluted net loss per share attributable to Altice USA, Inc. stockholders	$ (0.16)	$ (0.05)
Basic and diluted weighted average common shares (in thousands)	464,862,000	457,369,000
Diluted income (loss) per share	$ (0.16)	$ (0.05)
Diluted weighted average common shares (in thousands)	464,862,000	457,369,000
Cash dividends declared per common share	$ 0	$ 0