DISCONTINUED OPERATIONS AND ASSETS HELD FOR SALE - Financial Results (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain on asset disposal	$ (693)	$ 0	$ (661)	$ 1,752
Loss from discontinued operations	(43)	(1,078)	(12)	(696)
Support Com | Discontinued Operations, Held-for-sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue	0	378	0	4,223
Cost of revenue - services and other (exclusive of depreciation and amortization)	0	(957)	0	(4,425)
Selling, general and administrative	(43)	(1,353)	(35)	(3,265)
Merger and other costs	0	(154)	0	(684)
Gain on asset disposal	0	0	0	4,162
Gain (loss) on assets classified as held for sale	0	1,135	11	(600)
Other income (loss), net	0	(127)	12	(107)
Loss from discontinued operations	$ (43)	$ (1,078)	$ (12)	$ (696)