COMMON STOCK EQUITY - COMMON STOCK EQUITY NARRATIVE (Details) - USD ($) $ in Millions		6 Months Ended
	Dec. 14, 2015	Mar. 31, 2016	Mar. 31, 2015
Equity [Abstract]
Number of treasury shares issued from raising of equity through the DRP	5,000,000	260,000	279,000
Equity raised through the DRP		$ 8.2	$ 7.7
Additional equity raised			$ 19.8
Additional shares issued through the waiver discount feature of the DRP		0	688,000