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OTHER INCOME AND EXPENSE (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended			6 Months Ended
OTHER INCOME AND EXPENSE (Details) - USD ($) $ in Thousands	May 31, 2026	Jun. 30, 2026	Mar. 31, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Offsetting Assets [Line Items]
Gain on sale of equity investment		$ 0		$ 0	$ 0	$ 3,199
Gain on debt extinguishments		19,861		3,856	29,694	3,856
Gain on sale of fiber-to-the-tower contract rights		1,003		0	27,638	0
Loss on fair value adjustment of equity investment		(7,623)		0	(7,623)	0
Other		(871)		42	(539)	101
Other income (expense), net		(431,590)		(11,372)	(408,630)	(12,784)
Point-Clearwave Fiber
Offsetting Assets [Line Items]
Loss on fair value adjustment of equity investment	$ (7,600)
Customer relationships
Offsetting Assets [Line Items]
Gain on sale of fiber-to-the-tower contract rights			$ 27,600
Disposal Group, Disposed of by Sale, Not Discontinued Operations \| FIber To The Tower
Offsetting Assets [Line Items]
Disposal consideration		42,000			42,000
Disposal of operation, business data revenue			$ 9,000
MBI option
Offsetting Assets [Line Items]
MBI option fair value adjustment		$ (443,960)			$ (457,800)
MBI net option
Offsetting Assets [Line Items]
MBI option fair value adjustment				$ (15,270)		$ (19,940)