DISCONTINUED OPERATIONS - Revenue and Expenses (Details) - USD ($) $ in Thousands	3 Months Ended								10 Months Ended	12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Discontinued Operations and Disposal Groups [Abstract]
Revenue - Interest and other income									$ 12,236	$ 6,389	$ 14,544
Expenses:
Interest expense									0	1,944	132
Fees to related party (1)									0	550	777
General and administrative (1)									762	42	495
Provision for income taxes									19	0	0
Total expenses									781	2,536	1,404
Income from operations of assets held for sale									11,455	3,853	13,140	$ 11,455
Gain on disposition of assets held for sale									0	0	5,151	0
NET INCOME FROM DISCONTINUED OPERATIONS	$ 792	$ 703	$ 1,668	$ 690	$ 7,751	$ 4,640	$ 3,180	$ 2,720	11,455	$ 3,853	$ 18,291	$ 11,455
Salaries and related benefits									$ 664