Stock-Based Compensation (Schedule Of Outstanding Stock Options Currently Exercisable, Vested And Expected To Vest) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Sep. 30, 2013		Sep. 30, 2012
Share-based Compensation [Abstract]
Stock options outstanding	210,219		284,474
Stock options outstanding, Weighted Average Remaining Contractual Life (in Years)	4 years 4 months 13 days
Stock options outstanding, Weighted Average Exercise Price per Share	$ 9.80		$ 11.73
Stock options outstanding, Aggregate Intrinsic Value	$ 15,967	[1]
Exercisable, Number of Shares	140,054
Exercisable, Weighted Average Remaining Contractual Life (in Years)	2 years 5 months 16 days
Exercisable, Weighted Average Exercise Price per Share	$ 13.48
Exercisable, Aggregate Intrinsic Value	10,123	[1]
Vested and expected to vest, Number of Shares	204,688
Vested and expected to vest, Weighted Average Remaining Contractual Life (in Years)	4 years 3 months 7 days
Vested and expected to vest, Weighted Average Exercise Price per Share	$ 10.01
Vested and expected to vest, Aggregate Intrinsic Value	$ 15,506	[1]

[1] Aggregate intrinsic value represents the difference between the fair value of the Company’s common stock underlying these options at September 30, 2013 and the related exercise prices.