CONSOLIDATED BALANCE SHEETS (Parentheticals) (USD $) In Millions, except Share data, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
Statement of Financial Position [Abstract]
Preferred stock, par value (in dollars per share)	$ 0.01
Preferred stock, shares authorized	10,000,000
Preferred stock, shares outstanding	394,200	400,000
Aggregate liquidation preference	$ 617.1	$ 626.0
Common stock, par value (in dollars per share)	$ 0.01
Common stock, shares authorized	500,000,000
Common stock, shares issued	142,381,100	140,184,000
Common stock, shares outstanding	142,381,100	140,184,000