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GOODWILL AND INTANGIBLE ASSETS - Net (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Oct. 01, 2022	Dec. 31, 2021	Dec. 31, 2020
Changes in the carrying amount of goodwill, by operating segment
Goodwill, Gross	$ 60,691		$ 60,691
Accumulated impairment	(20,587)		(20,587)
Goodwill, Total	40,104		40,104	$ 60,691
International Telecom
Changes in the carrying amount of goodwill, by operating segment
Goodwill, Gross	25,423		25,423
Accumulated impairment	(20,587)		(20,587)
Goodwill, Total	4,836		4,836	25,423
US Telecom
Changes in the carrying amount of goodwill, by operating segment
Goodwill, Gross	35,268		35,268
Goodwill, Total	$ 35,268	$ 35,300	$ 35,268	$ 35,268

X

- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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