Stock-Based Compensation (Options and Common Shares Reserved for Grant) (Details) (Stock Options [Member], USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Sep. 30, 2012
Stock Options [Member]
Options Available for Grant [Roll Forward]
Options Available for Grant, Beginning Balance	2,517
Options Available for Grant, Granted	(917)
Options Available for Grant, Exercised	0
Options Available for Grant, Cancelled	178
Options Available for Grant, Ending Balance	1,778
Options Outstanding [Roll Forward]
Options Outstanding, Beginning Balance	5,183
Options Outstanding, Granted	917
Options Outstanding, Exercised	(168)
Options Outstanding, Cancelled	(178)
Options Outstanding, Ending Balance	5,754
Options Outstanding, Exercisable	3,998
Weighted Average Exercise Price [Roll Forward]
Weighted Average Exercise Price, Beginning Balance	$ 10.70
Weighted Average Exercise Price, Granted	$ 10.65
Weighted Average Exercise Price, Exercised	$ 6.37
Weighted Average Exercise Price, Cancelled	$ 12.44
Weighted Average Exercise Price, Ending Balance	$ 10.76
Weighted Average Exercise Price, Exercisable	$ 11.03
Weighted Average Remaining Contractual Term [Abstract]
Weighted Average Remaining Contractual Term	6 years 2 months 12 days
Weighted Average Remaining Contractual Term, Exercisable	5 years 1 month 6 days
Aggregate Intrinsic Value [Abstract]
Aggregate Intrinsic Value	$ 3,623	[1]
Aggregate Intrinsic Value, Exercisable	$ 2,854	[1]
Closing Stock Price	$ 10.16

[1] The aggregate intrinsic value represents the total pre-tax intrinsic value, based on our closing stock price of $10.16 as of September 30, 2012, which would have been received by the option holders had all option holders exercised their options as of that date.