INTANGIBLE ASSETS - Summary of Acquired Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 7,150,959	$ 7,133,947
Finite-Lived Intangible Assets, Accumulated Amortization	(6,190,154)	(5,874,612)
Finite-Lived Intangible Assets, Net	960,805	1,259,335
CSC Holdings
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Accumulated Amortization	(6,190,154)	(5,874,612)
Finite-Lived Intangible Assets, Net	960,805	1,259,335
Customer Relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	6,089,050	6,073,152
Finite-Lived Intangible Assets, Accumulated Amortization	(5,137,180)	(4,824,140)
Finite-Lived Intangible Assets, Net	951,870	1,249,012
Trade names
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,010,000	1,010,300
Finite-Lived Intangible Assets, Accumulated Amortization	(1,010,000)	(1,010,300)
Finite-Lived Intangible Assets, Net	0	0
Other amortizable intangibles
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	51,909	50,495
Finite-Lived Intangible Assets, Accumulated Amortization	(42,974)	(40,172)
Finite-Lived Intangible Assets, Net	$ 8,935	$ 10,323
Minimum | Customer Relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life	1 year
Minimum | Trade names
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life	4 years
Minimum | Other amortizable intangibles
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life	1 year
Maximum | Customer Relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life	18 years
Maximum | Trade names
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life	7 years
Maximum | Other amortizable intangibles
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life	15 years