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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
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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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