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Stock-Based Compensation (Non-Vested Options) (Details) (Stock Options [Member], USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Sep. 30, 2012
Stock Options [Member]
Nonvested Number Of Options [Roll Forward]
Number of Options, Beginning Balance	1,815
Number of Options, Granted	917
Number of Options, Vested	(798)
Number of Options, Forfeited	(178)
Number of Options, Ending Balance	1,756
Weighted Average Grant Date Fair Value per Common Share [Roll Forward]
Weighted Average Grant Date Fair Value per Common Share, Beginning Balance	$ 3.27
Weighted Average Grant Date Fair Value per Common Share, Granted	$ 4.45
Weighted Average Grant Date Fair Value per Common Share, Vested	$ 3.72
Weighted Average Grant Date Fair Value per Common Share, Forfeited	$ 4.21
Weighted Average Grant Date Fair Value per Common Share, Ending Balance	$ 3.58

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