DISCONTINUED OPERATIONS - Income Statement Disclosures by Disposal Groups (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income from discontinued operations, net of tax	$ 17,844	$ 3,601	$ 31,643	$ 9,219
Held-for-sale | UMO business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenues	59,429	35,068	112,459	68,216
Cost of revenues (exclusive of depreciation shown separately below)	33,585	24,965	65,977	45,611
Depreciation and amortization attributable to costs of revenues	1,332	1,278	2,636	2,513
Gross profit	24,512	8,825	43,846	20,092
Selling, general and administrative expenses  (exclusive of acquisition related expenses)	6,243	4,648	11,327	9,716
Depreciation and amortization expense attributable to operating expenses	427	456	872	912
Total operating expenses	6,670	5,104	12,199	10,628
Income from operations	17,842	3,721	31,647	9,464
Interest expense	2
Interest expense		120	4	245
Total other expense	2	(120)	(4)	(245)
Income before income tax	17,844	3,601	31,643	9,219
Income tax benefit (expense)	0	0	0	0
Income from discontinued operations, net of tax	$ 17,844	$ 3,601	$ 31,643	$ 9,219