DISCONTINUED OPERATIONS - Financial Results (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2022
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain on asset disposal	$ 1,744	$ 0
Income from discontinued operations, net of tax	671	1,318
Support Com \| Discontinued Operations, Held-for-sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue	2,121		$ 8,500
Cost of revenue - services and other (exclusive of depreciation and amortization)	(1,894)		(4,071)
Depreciation and amortization	0		(325)
Selling, general and administrative	(1,217)		(2,583)
Merger and other costs	0		(213)
Gain on asset disposal	3,399	0
Loss on assets classified as held for sale	(1,735)	$ 0		$ 0
Other income, net	(3)		23
Pretax income from discontinued operations	671		1,331
Provision for income taxes	0		13
Income from discontinued operations, net of tax	$ 671		$ 1,318

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Gain (Loss) Due To Classification Of Held-For-Sale

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Amount of tax expense (benefit) related to a discontinued operation. Includes, but is not limited to, tax expense (benefit) related to income (loss) from operations during the phase-out period, tax expense (benefit) related to gain (loss) on disposal, tax expense (benefit) related to gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and tax expense (benefit) related to adjustments of a prior period gain (loss) on disposal.

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