DISCONTINUED OPERATIONS - Income Statement Disclosures (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
(Loss) income from discontinued operations	$ (113)	$ 13,133
Discontinued Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue	0	108,463
Direct contracting costs and reimbursed expenses	0	69,800
Salaries and related	0	29,032
Office and general	0	7,441
Marketing and promotion	0	914
Depreciation and amortization	0	680
Business reorganization	0	50
Total operating expenses	0	107,917
Operating income	0	546
Interest expense, net	0	88
Other non-operating income	0	216
Income from discontinued operations before taxes and (loss) gain on sale	0	674
(Loss) gain from sale of discontinued operations	(113)	13,861
(Loss) income from discontinued operations before income taxes	(113)	14,535
Provision for income taxes	0	1,402
(Loss) income from discontinued operations	$ (113)	$ 13,133