DISCONTINUED OPERATIONS (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	May 15, 2019
Line items constituting pretax profit or loss
Loss from discontinued operations	$ 0	$ (1,123)
Discontinued Operations, Disposed of by Sale | VDC Transaction
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Aggregate purchase price			$ 30,000
Line items constituting pretax profit or loss
Revenue		18,254
Cost of revenue (excluding depreciation and amortization)		2,776
Selling, general and administrative		10,877
Technology and development		2,198
Depreciation, amortization and impairments		2,147
Other operating expense		245
Other expense (income) and loss (gain), net		1,134
Loss from discontinued operations before income taxes		(1,123)
Benefit from income taxes		0
Loss from discontinued operations		$ (1,123)