INCOME TAXES AND ACCOUNTING FOR UNCERTAINTY IN INCOME TAXES - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Deferred tax assets:
Net operating losses, credit and other carryforwards	$ 152,355	$ 153,421
Other investments	32,953	32,785
Accrued expenses	48,121	61,177
Non-cash, stock-based compensation	5,779	5,821
Other assets	36,361	33,303
Total deferred tax assets	275,569	286,507
Valuation allowance	(193,118)	(209,411)
Deferred tax assets after valuation allowance	82,451	77,096
Deferred tax liabilities:
Property and equipment, regulatory authorizations, and other intangibles	(245,232)	(300,396)
Other liabilities	(21,761)	(21,322)
Total deferred tax liabilities	(266,993)	(321,718)
Total net deferred tax liabilities	(184,542)	(244,622)
Foreign
Deferred tax assets:
Valuation allowance	(142,000)
Deferred tax liabilities:
Net deferred tax assets (liabilities) foreign jurisdiction	7,017	8,198
Federal
Deferred tax liabilities:
Total net deferred tax liabilities	$ (191,559)	$ (252,820)