INCOME TAXES (Carrying value of DTAs) (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Deferred tax assets:
Net operating loss, tax credits and other tax carryforwards	$ 123,902	$ 121,574
Guaranteed fees		2,829
Asset management fees		5,470
Cancellation of subordinated debt	3,464	3,581
Other	(2,866)	6,533
Total deferred tax assets	124,500	139,987
Less: valuation allowance	$ (124,500)	$ (139,987)	$ (203,794)