CSC HOLDINGS - CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Net income	$ 1,010,932	$ 443,479	$ 139,939
Defined benefit pension and postretirement plans:
Defined benefit pension plans	4,772	12,333	13,806
Applicable income taxes	(1,259)	(3,270)	(4,109)
Defined benefit pension plans, net of income taxes	3,513	9,063	9,697
Foreign currency translation adjustment	(662)	(2,167)	(1,164)
Applicable income taxes	0	0	0
Foreign currency translation adjustment, net	(662)	(2,167)	(1,164)
Other comprehensive income	2,851	6,896	8,533
Comprehensive income	1,013,783	450,375	148,472
Comprehensive income attributable to noncontrolling interests	(20,621)	(7,296)	(1,003)
Comprehensive income attributable to CSC Holdings, LLC's sole member	993,162	443,079	147,469
CSC Holdings
Net income	1,008,797	455,838	212,817
Defined benefit pension and postretirement plans:
Defined benefit pension plans	4,772	12,333	13,806
Applicable income taxes	(1,259)	(3,270)	(4,109)
Defined benefit pension plans, net of income taxes	3,513	9,063	9,697
Foreign currency translation adjustment	(662)	(2,167)	(1,164)
Applicable income taxes	0	0	0
Foreign currency translation adjustment, net	(662)	(2,167)	(1,164)
Other comprehensive income	2,851	6,896	8,533
Comprehensive income	1,011,648	462,734	221,350
Comprehensive income attributable to noncontrolling interests	(20,621)	(7,296)	(1,003)
Comprehensive income attributable to CSC Holdings, LLC's sole member	$ 991,027	$ 455,438	$ 220,347