Common Stock, Options, and Stock Compensation (Details 1) (Restricted Stock [Member], USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended
	Sep. 30, 2014		Sep. 30, 2013	Sep. 30, 2012
Restricted Stock [Member]
Summary of the restricted stock awards (RSA) activity
Outstanding Shares at beginning of year	1,210,808
Granted, Shares	514,056
Released, Shares	(455,133)	[1]
Forfeited, Shares	(584,180)
Outstanding Shares at end of year	685,551		1,210,808
Weighted Average Grant date Fair Value (in dollars per share)
Weighted average grant date fair value outstanding at beginning of year	$ 19.06
Granted, Weighted average grant date fair value	$ 14.58		$ 20.43	$ 29.22
Released, Weighted average grant date fair value	$ 16.76	[1]
Forfeited, Weighted average grant date fair value	$ 19.86
Weighted average grant date fair value outstanding at end of year	$ 19.82		$ 19.06
Shares withheld to satisfy related federal income tax withholding	154,000
Weighted average grant-date fair value per share granted	$ 14.58		$ 20.43	$ 29.22
Total grant date fair value of RSAs vested	$ 7.6		$ 10.7	$ 4.1

[1] Approximately 154,000 shares were withheld to satisfy related federal income tax withholding.