DISCONTINUED OPERATIONS - Schedule of Balance Sheet (Details) - Discontinued Operations, Disposed of by Sale - Workspace Management Software Solutions $ in Thousands	Dec. 31, 2018 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Accounts receivable, net	$ 10,926
Other current assets	2,807
Property and equipment, net	2,514
Goodwill	12,279
Intangible assets, net	4,512
Other assets	1,752
Total assets	34,790
Accounts payable	717
Accrued liabilities and other current liabilities	10,634
Other long-term liabilities	1,334
Total liabilities	$ 12,685