Stock-Based Compensation (Non-Vested Options) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2011
Nonvested Options, Weighted Average Grant Date Fair Value per Common Share [Roll Forward]
Weighted average per option grant date fair value	$ 3.77	$ 4.45	$ 4.14
Stock Options
Nonvested Number Of Options [Roll Forward]
Number of Options, Beginning Balance	1,756
Number of Options, Granted	1,049
Number of Options, Vested	(844)
Number of Options, Forfeited	(244)
Number of Options, Ending Balance	1,717
Nonvested Options, Weighted Average Grant Date Fair Value per Common Share [Roll Forward]
Weighted Average Grant Date Fair Value per Common Share, Beginning Balance	$ 3.58
Weighted average per option grant date fair value	$ 3.77
Weighted Average Grant Date Fair Value per Common Share, Vested	$ 3.71
Weighted Average Grant Date Fair Value per Common Share, Forfeited	$ 4.05
Weighted Average Grant Date Fair Value per Common Share, Ending Balance	$ 3.56
Restricted Stock Units
Nonvested Number of Restricted Stock Units [Roll Forward]
Number of Restricted Stock Units, Beginning Balance	0
Number of Restricted Stock Units, Granted	49
Number of Restricted Stock Units, Vested	0
Number of Restricted Stock Units, Forfeited	0
Number of Restricted Stock Units, Ending Balance	49
Nonvested Restricted Stock Units, Weighted Average Grant Date Fair Value per Common Share [Roll Forward]
Restricted Stock Units, Weighted Average Grant Date Fair Value per Common Share, Beginning Balance	$ 0.00
Restricted Stock Units, Weighted Average Grant Date Fair Value per Common Share, Granted	$ 9.71
Restricted Stock Units, Weighted Average Grant Date Fair Value per Common Share, Vested	$ 0.00
Restricted Stock Units, Weighted Average Grant Date Fair Value per Common Share, Forfeited	$ 0.00
Restricted Stock Units, Weighted Average Grant Date Fair Value per Common Share, Ending Balance	$ 9.71