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, 2012	Sep. 30, 2011	Sep. 30, 2010
Stock Options
Equity Securities and Stock-based Compensation
Shares Outstanding, Beginning Balance	1,547	1,801	1,812
Shares, Granted	0	0	0
Shares, Exercised	0	0	0
Shares, Forfeited or expired	(285)	(254)	(11)
Shares Outstanding, Ending Balance	1,262	1,547	1,801
Shares, Exercisable	1,262	1,547	1,801
Weighted-average exercise price, Beginning Balance	$ 21.86	$ 21.68	$ 21.67
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	$ 17.02	$ 20.64	$ 19.92
Weighted-average exercise price, Ending Balance	$ 22.95	$ 21.86	$ 21.68
Weighted-average exercise price, Exercisable	$ 22.95	$ 21.86	$ 21.68
Weighted-average remaining contractual term, Outstanding Ending Balance	1 year 6 months	2 years 2 months 12 days	3 years 2 months 12 days
Weighted-average remaining contractual term, Exercisable	1 year 6 months	2 years 2 months 12 days	3 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	2,892	2,615	1,931
Shares, Granted	1,241	602	790
Shares, Exercised	(8)	(96)	0
Shares, Forfeited or expired	(231)	(229)	(106)
Shares Outstanding, Ending Balance	3,894	2,892	2,615
Shares, Exercisable	2,909	2,294	1,731
Weighted-average exercise price, Beginning Balance	$ 10.08	$ 11.46	$ 14.37
Weighted-average exercise price, Granted	$ 1.85	$ 3.85	$ 4.60
Weighted-average exercise price, Exercised	$ 4.28	$ 4.18	$ 0.00
Weighted-average exercise price, Forfeited or expired	$ 11.12	$ 11.92	$ 13.28
Weighted-average exercise price, Ending Balance	$ 7.41	$ 10.08	$ 11.46
Weighted-average exercise price, Exercisable	$ 9.18	$ 11.41	$ 12.98
Weighted-average remaining contractual term, Outstanding Ending Balance	6 years 8 months 12 days	6 years 8 months 12 days	7 years 6 months
Weighted-average remaining contractual term, Exercisable	6 years	6 years 2 months 12 days	7 years
Aggregate intrinsic value, Outstanding	8,147,000	0	0
Aggregate intrinsic value, Exercisable	3,920,000	0	0
Weighted-average grant-date fair value of SARs granted	$ 0.86	$ 2.26	$ 2.77
Total intrinsic value	$ 0	$ 100,000

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The total accumulated difference between fair values of underlying shares on dates of exercise and exercise price on options which were exercised (or share units converted) into shares during the reporting period under the plan.

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For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired.

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Weighted average price of options that were either forfeited or expired.

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Net number of share options (or share units) granted during the period.

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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of options outstanding.

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The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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