CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (78,277)	$ 79,037	$ 220,889
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax [Abstract]
Defined benefit pension plans	12,926	(5,424)	(20,526)
Applicable income taxes	(3,477)	1,463	5,537
Defined benefit pension plans, net of income taxes	9,449	(3,961)	(14,989)
Foreign currency translation adjustment	(424)	(689)	291
Other comprehensive income (loss)	9,025	(4,650)	(14,698)
Comprehensive income (loss)	(69,252)	74,387	206,191
Comprehensive income attributable to noncontrolling interests	(24,641)	(25,839)	(26,326)
Comprehensive income (loss) attributable to Altice USA, Inc. stockholders	$ (93,893)	$ 48,548	$ 179,865