Stock-Based Compensation (Options and Common Shares Reserved for Grant) (Details) (Stock Options, USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Dec. 31, 2014
Stock Options
Options Outstanding [Roll Forward]
Options Outstanding, Beginning Balance	6,029
Options Outstanding, Granted	704
Options Outstanding, Exercised	(1)
Options Outstanding, Forfeited / Cancelled	(587)
Options Outstanding, Ending Balance	6,145
Options Outstanding, Exercisable	4,502
Weighted Average Exercise Price [Roll Forward]
Weighted Average Exercise Price, Beginning Balance	$ 10.61
Weighted Average Exercise Price, Granted	$ 7.82
Weighted Average Exercise Price, Exercised	$ 9.20
Weighted Average Exercise Price, Forfeited / Cancelled	$ 11.55
Weighted Average Exercise Price, Ending Balance	$ 10.20
Weighted Average Exercise Price, Exercisable	$ 10.59
Weighted Average Remaining Contractual Term [Abstract]
Weighted Average Remaining Contractual Term, Outstanding	4 years 8 months 12 days
Weighted Average Remaining Contractual Term, Exercisable	3 years 8 months 12 days
Aggregate Intrinsic Value [Abstract]
Aggregate Intrinsic Value, Outstanding	$ 2,222	[1]
Aggregate Intrinsic Value, Exercisable	$ 1,134	[1]
Closing Stock Price	$ 9.29

[1] The aggregate intrinsic value represents the total pre-tax intrinsic value, based on our closing stock price of $9.29 as of December 31, 2014, which would have been received by the option holders had all option holders exercised their options as of that date. The intrinsic value of an option is the amount by which the fair value of the underlying stock exceeds its exercise price.