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GOODWILL - Net (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Changes in the carrying amount of goodwill, by operating segment
Goodwill	$ 60,691	$ 60,691
Accumulated impairment	(55,856)	(20,587)
Goodwill, net of accumulated impairment	4,835	40,104
International Telecom
Changes in the carrying amount of goodwill, by operating segment
Goodwill	25,422	25,423
Accumulated impairment	(20,587)	(20,587)
Goodwill, net of accumulated impairment	4,835	4,836
US Telecom
Changes in the carrying amount of goodwill, by operating segment
Goodwill	35,269	35,268
Accumulated impairment	$ (35,269)
Goodwill, net of accumulated impairment		$ 35,268

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- Definition

Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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