RESTRUCTURING AND OTHER EXPENSE (Details) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2025 USD ($)	Dec. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Restructuring Reserve [Roll Forward]
Indefinite-lived cable franchise rights impairment		$ 1,611,308	$ 0	$ 0
Goodwill impairment		0	0	163,055
Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property	$ (55,114)	(55,114)	0	0
Restructuring expense relating to right of use operating leases		5,341	5,558	10,554
Other Restructuring Costs		366	5,784	(3,977)
Restructuring, impairments and other operating items		1,687,130	23,696	214,727
Proceeds related to sale of equipment, net of costs of disposal		$ 65,513	6,311	8
Year of license agreement to access space on tower	5	5
T-Mobile Litigation
Restructuring Reserve [Roll Forward]
Payments for Legal Settlements				65,000
Tower assets
Restructuring Reserve [Roll Forward]
Proceeds related to sale of equipment, net of costs of disposal		$ 59,908
Employee Severance [Member]
Restructuring Reserve [Roll Forward]
Restructuring Charges		85,123	19,400	39,915
Gain (Loss) from Litigation Settlement		$ 3,000	$ (59,750)	$ 0
Restructuring Charges, Statement of Income or Comprehensive Income [Extensible Enumeration]		Restructuring, impairments and other operating items	Restructuring, impairments and other operating items	Restructuring, impairments and other operating items
Transaction costs
Restructuring Reserve [Roll Forward]
Restructuring Charges		$ 35,048	$ 10,780	$ 5,180
Restructuring Charges, Statement of Income or Comprehensive Income [Extensible Enumeration]		Restructuring, impairments and other operating items	Restructuring, impairments and other operating items	Restructuring, impairments and other operating items
Facility Realignment and Other Costs [Member]
Restructuring Reserve [Roll Forward]
Loss on Contract Termination		$ 2,058	$ 41,924	$ 0