RELATED PARTIES (Details) - USD ($) $ / shares in Units, $ in Thousands			12 Months Ended			49 Months Ended
	Dec. 10, 2013	Nov. 12, 2013	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015
RELATED PARTIES (Details) [Line Items]
Co-manager fees					$ 825
Stock repurchased during period, shares (in Shares)	4,444,444		5,311,915	1,906,631	3,549,077	20,300,298
Stock repurchased during period, value	$ 50,000		$ 80,934	$ 23,167	$ 56,288	$ 259,420
Stock repurchased during period per share (in Dollars per share)	$ 11.25		$ 15.24	$ 12.15	$ 15.86	$ 12.78
Stock repurchased during period, share price discount rate		9.20%
GS Direct [Member]
RELATED PARTIES (Details) [Line Items]
Shares, outstanding	5,560,000
Percentage held common stock outstanding	10.00%