DISCONTINUED OPERATIONS - Financial Results (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain on asset disposal	$ 8	$ 629	$ 1,752	$ 629
(Loss) income from discontinued operations, net of tax	(289)	1,153	382	2,471
Support Com | Discontinued Operations, Held-for-sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue	1,724	8,413	3,845	16,913
Cost of revenue - services and other (exclusive of depreciation and amortization)	(1,574)	(3,573)	(3,468)	(7,644)
Depreciation and amortization	0	(330)	0	(655)
Selling, general and administrative	(845)	(2,797)	(1,912)	(5,380)
Merger and other costs	(379)	(485)	(530)	(698)
Gain on asset disposal	762	0	4,162	0
Loss on assets classified as held for sale	0	0	(1,735)	0	$ 0
Other (loss) income, net	23	(5)	20	18
Pretax income from discontinued operations	(289)	1,223	382	2,554
Provision for income taxes	0	70	0	83
(Loss) income from discontinued operations, net of tax	$ (289)	$ 1,153	$ 382	$ 2,471