SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 1) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Restructuring charge	$ 4,896	$ 3,585	$ 11,484	$ 3,585
Capital Markets Reportable Segment [Member]
Restructuring charge	(3,322)		(7,245)
Principal Investments - United Online Segment [Member]
Restructuring charge	(150)	(3,187)	(633)	(3,187)
Corporate Overhead [Member]
Restructuring charge	1,424	398	3,606	398
Employee Termination Costs [Member]
Restructuring charge	3,537	3,187	8,736	3,187
Employee Termination Costs [Member] | Capital Markets Reportable Segment [Member]
Restructuring charge	2,285		4,819
Employee Termination Costs [Member] | Principal Investments - United Online Segment [Member]
Restructuring charge	150	3,187	633	3,187
Employee Termination Costs [Member] | Corporate Overhead [Member]
Restructuring charge	1,102		3,284
Facility Closure And Consolidation Charge [Member]
Restructuring charge	1,359	398	2,748	398
Facility Closure And Consolidation Charge [Member] | Capital Markets Reportable Segment [Member]
Restructuring charge	1,037		2,426
Facility Closure And Consolidation Charge [Member] | Principal Investments - United Online Segment [Member]
Restructuring charge
Facility Closure And Consolidation Charge [Member] | Corporate Overhead [Member]
Restructuring charge	$ 322	$ 398	$ 322	$ 398