CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Statement of Comprehensive Income [Abstract]
Net income	$ 79,037	$ 220,889	$ 1,010,932
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax [Abstract]
Defined benefit pension plans	(5,424)	(20,526)	4,772
Applicable income taxes	1,463	5,537	(1,259)
Defined benefit pension plans, net of income taxes	(3,961)	(14,989)	3,513
Foreign currency translation adjustment	(689)	291	(662)
Other comprehensive income (loss)	(4,650)	(14,698)	2,851
Comprehensive income	74,387	206,191	1,013,783
Comprehensive income attributable to noncontrolling interests	(25,839)	(26,326)	(20,621)
Comprehensive income attributable to Altice USA, Inc. stockholders	$ 48,548	$ 179,865	$ 993,162