COMMON STOCK EQUITY - DIVIDEND REINVESTMENT PLAN (Details) - USD ($) $ in Millions		3 Months Ended
	Dec. 14, 2015	Dec. 31, 2015	Dec. 31, 2014
Equity [Abstract]
Number of treasury shares issued from raising of equity through the DRP	5,000,000	127,000	148,000
Equity raised through the DRP		$ 3.8	$ 3.8
Additional equity raised			$ 19.8
Additional shares issued through the waiver discount feature of the DRP		0	688,000