CSC HOLDINGS - CONSOLIDATED BALANCE SHEETS (Parentheticals) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Accounts receivable, trade allowance for doubtful accounts	$ (27,931)	$ (25,198)
Less accumulated depreciation and amortization	(7,142,852)	(6,431,843)
Finite-Lived Intangible Assets, Accumulated Amortization	5,051,149	4,409,312
Due from Related Parties, Current	3,776
Due to Affiliate, Current	31,810	8,538
Amortizable intangible assets, accumulated amortization	5,051,149	4,409,312
CSC Holdings
Accounts receivable, trade allowance for doubtful accounts	(27,931)	(25,198)
Less accumulated depreciation and amortization	(7,142,852)	(6,431,843)
Finite-Lived Intangible Assets, Accumulated Amortization	(5,051,149)	(4,409,312)
Due from Related Parties, Current		4,262
Due to Affiliate, Current	31,810	8,538
Amortizable intangible assets, accumulated amortization	$ (5,051,149)	(4,409,312)
Common Unit, Outstanding	100
CSC Holdings | Customer Relationships [Member]
Finite-Lived Intangible Assets, Accumulated Amortization	$ 4,020,282	3,478,742
Amortizable intangible assets, accumulated amortization	4,020,282	3,478,742
CSC Holdings | Other Intangible Assets [Member]
Finite-Lived Intangible Assets, Accumulated Amortization	42,304	36,381
Amortizable intangible assets, accumulated amortization	$ 42,304	$ 36,381