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Stock Award Plans - Other Stock Option Information (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2012
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Compensation cost for stock options	$ 324	$ 473	$ 848
Weighted average grant date fair value	$ 2.95	$ 3.24	$ 3.53
Total intrinsic value of options exercised	1,136	781	125
Grant date fair value of options exercised	1,962	791	54
Cash received from options exercises	10,142	4,261	357
Tax benefit realized for option exercises	$ 159	$ 53	$ 0

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- Definition

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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Aggregate proceeds received by the entity during the annual period from exercises of stock or unit options and conversion of similar instruments granted under equity-based payment arrangements.

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Disclosure of the aggregate tax benefit realized from the exercise of stock options and the conversion of similar instruments during the annual period.

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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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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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