CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 86,410	$ (98,004)	$ 61,212	$ (226,953)
Defined benefit pension plans:
Unrecognized actuarial gain (loss)	(8,567)	(359)	(3,648)	4,192
Applicable income taxes	2,282	97	989	(1,131)
Unrecognized actuarial gain (loss) arising during period, net of income taxes	(6,285)	(262)	(2,659)	3,061
Settlement loss included in other expense, net	367	258	538	864
Applicable income taxes	(101)	(70)	(147)	(234)
Settlement loss included in other expense, net, net of income taxes	266	188	391	630
Foreign currency translation adjustment	(336)	914	(580)	914
Applicable income taxes	93	(338)	157	(338)
Foreign currency translation adjustment, net	(243)	576	(423)	576
Other comprehensive income (loss)	(6,262)	502	(2,691)	4,267
Comprehensive income (loss)	80,148	(97,502)	58,521	(222,686)
Comprehensive loss (income) attributable to noncontrolling interests	(43)	149	156	147
Comprehensive income (loss) attributable to Altice USA, Inc. stockholders	$ 80,105	$ (97,353)	$ 58,677	$ (222,539)

Other Comprehensive Income (Loss), Defined Benefit Plan, Adjustment for Settlement Gain (Loss), Tax

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