SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Correction of Immaterial Errors on Consolidated Statements of Operations (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Cost of revenue, excluding amortization	$ 95,825	$ 94,528	$ 190,041	$ 142,646
Operating Costs and Expenses	25,889	36,476	52,807	56,891
Operating Income (Loss)	3,688	(10,550)	4,355	(12,477)
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest	(13,521)	(15,327)	(17,676)	(19,871)
Income tax (benefit) expense, net	(2,127)	3,059	(2,884)	3,059
Net loss	$ (11,394)	$ (18,386)	$ (14,792)	$ (22,930)
Basic (in dollars per share)	$ (0.23)	$ (0.37)	$ (0.30)	$ (0.48)
Diluted (in dollars per share)	$ (0.23)	$ (0.37)	$ (0.30)	$ (0.48)
Scenario, Previously Reported [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Cost of revenue, excluding amortization		$ 94,181		$ 142,070
Operating Costs and Expenses		36,159		56,143
Operating Income (Loss)		(9,886)		(11,153)
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest		(14,663)		(18,547)
Income tax (benefit) expense, net		3,124		3,124
Net loss		$ (17,787)		$ (21,671)
Basic (in dollars per share)		$ (0.36)		$ (0.45)
Diluted (in dollars per share)		$ (0.36)		$ (0.45)
Restatement Adjustment [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Cost of revenue, excluding amortization		$ 347		$ 576
Operating Costs and Expenses		317		748
Operating Income (Loss)		(664)		(1,324)
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest		(664)		(1,324)
Income tax (benefit) expense, net		(65)		(65)
Net loss		$ (599)		$ (1,259)
Basic (in dollars per share)		$ (0.01)		$ (0.03)
Diluted (in dollars per share)		$ (0.01)		$ (0.03)