Equity Securities and Stock-Based Compensation (Details 4) (USD $) Share data in Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2011
Stock Options
Equity Securities and Stock-based Compensation
Shares Outstanding, Beginning Balance	1,262	1,547	1,801
Shares, Granted	0	0	0
Shares, Exercised	0	0	0
Shares, Forfeited or expired	(644)	(285)	(254)
Shares Outstanding, Ending Balance	618	1,262	1,547
Shares, Exercisable	618	1,262	1,547
Weighted-average exercise price, Beginning Balance	$ 22.95	$ 21.86	$ 21.68
Weighted-average exercise price, Granted	$ 0.00	$ 0.00	$ 0.00
Weighted-average exercise price, Exercised	$ 0.00	$ 0.00	$ 0.00
Weighted-average exercise price, Forfeited or expired	$ 18.66	$ 17.02	$ 20.64
Weighted-average exercise price, Ending Balance	$ 27.42	$ 22.95	$ 21.86
Weighted-average exercise price, Exercisable	$ 27.42	$ 22.95	$ 21.86
Weighted-average remaining contractual term, Outstanding Ending Balance	1 year 2 months 12 days	1 year 6 months	2 years 2 months 12 days
Weighted-average remaining contractual term, Exercisable	1 year 2 months 12 days	1 year 6 months	2 years 2 months 12 days
Aggregate intrinsic value, Outstanding	$ 0	$ 0	$ 0
Aggregate intrinsic value, Exercisable	0	0	0
SARs
Equity Securities and Stock-based Compensation
Shares Outstanding, Beginning Balance	3,894	2,892	2,615
Shares, Granted	307	1,241	602
Shares, Exercised	(322)	(8)	(96)
Shares, Forfeited or expired	(240)	(231)	(229)
Shares Outstanding, Ending Balance	3,639	3,894	2,892
Shares, Exercisable	3,027	2,909	2,294
Weighted-average exercise price, Beginning Balance	$ 7.41	$ 10.08	$ 11.46
Weighted-average exercise price, Granted	$ 6.79	$ 1.85	$ 3.85
Weighted-average exercise price, Exercised	$ 4.51	$ 4.28	$ 4.18
Weighted-average exercise price, Forfeited or expired	$ 12.93	$ 11.12	$ 11.92
Weighted-average exercise price, Ending Balance	$ 7.25	$ 7.41	$ 10.08
Weighted-average exercise price, Exercisable	$ 8.01	$ 9.18	$ 11.41
Weighted-average remaining contractual term, Outstanding Ending Balance	6 years 4 months 24 days	6 years 8 months 12 days	6 years 8 months 12 days
Weighted-average remaining contractual term, Exercisable	6 years	6 years	6 years 2 months 12 days
Aggregate intrinsic value, Outstanding	13,157,000	8,147,000	0
Aggregate intrinsic value, Exercisable	9,801,000	3,920,000	0
Weighted-average grant-date fair value of SARs granted	$ 3.39	$ 0.86	$ 2.26
Total intrinsic value	$ 1,800,000	$ 0	$ 0