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Stock Options Option Activity (Details) (Stock Options [Member], USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Sep. 30, 2011 Years	Sep. 30, 2010
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Options outstanding at beginning of period	2,643,307
Options granted	370,650
Options exercised	(109,790)
Options forfeited	(162,927)
Options outstanding at end of period	2,741,240
Options exercisable	1,732,382
Options outstanding, weighted average exercise price at beginning of period	$ 19.97	$ 20.16
Options granted, weighted average exercise price	$ 16.84
Options exercised, weighted average exercise price	$ 14.84
Options forfeited, weighted average exercise price	$ 19.43
Options outstanding, weighted average exercise price at beginning of period	$ 19.97	$ 20.16
Options exercisable, weighted average exercise price	$ 20.79
Options outstanding, weighted average remaining contractual term	5
Options exercisable, weighted average remaining contractual term	3
Options outstanding, aggregate intrinsic value	$ 344
Options exercisable, aggregate intrinsic value	$ 85

X

- Definition

The total dollar difference between fair values of the underlying shares reserved for issuance and exercise prices of vested portions of options outstanding and currently exercisable under the option plan as of the balance sheet date.

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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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The weighted average period between the balance sheet date and expiration for all vested portions of options outstanding and currently exercisable (or convertible) under the plan, which may be expressed in a decimal value for number of years.

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The weighted average price at which option holders acquired shares when converting their stock options into shares under the plan during the reporting period.

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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.

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The weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated during the reporting period due to noncompliance with plan terms during the reporting period.

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

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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 stock options awarded under the plan during the reporting period.

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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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The weighted average price as of the beginning of the year at which grantees can acquire the shares reserved for issuance under the stock option plan.

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