XML 54 R41.htm IDEA: XBRL DOCUMENT v3.10.0.1
FAIR VALUE OF FINANCIAL INSTRUMENTS (Changes in Investments that Use Level 3 Inputs) (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Feb. 20, 2018
Aug. 09, 2017
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
FAIR VALUE OF FINANCIAL INSTRUMENTS [Abstract]            
Balance as of December 31, 2017         $ 234,171  
Unrealized appreciation on investments $ 10,527 $ 3,780 $ 8,623 $ 4,289 12,943 $ 5,682
Fundings of principal and change in unamortized origination fees         169,702  
Repayments of loans         (3,257)  
Payment-in-kind interest         9,410  
Reclassification of self-storage real estate owned         (35,281) $ (6,066)
Balance at March 31, 2017     $ 387,688   $ 387,688