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Stock-Based Compensation (Stock Options Exercisable) (Details) (Stock Options, USD $)
12 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Sep. 30, 2010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number Exercisable 400,638 232,018 259,595
Weighted Average Exercise Price $ 9.25 $ 8.31 $ 7.97
Aggregate Intrinsic Value $ 0    
Closing Stock Price Per Share $ 3.31    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Total Intrinsic Value 100,000 1,300,000 1,800,000
3.01 - 7.00
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number Exercisable 191,162    
Weighted Average Exercise Price $ 5.09    
Aggregate Intrinsic Value 0    
7.01 - 10.00
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number Exercisable 31,000    
Weighted Average Exercise Price $ 7.84    
Aggregate Intrinsic Value 0    
10.01 - 15.00
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number Exercisable 130,161    
Weighted Average Exercise Price $ 12.68    
Aggregate Intrinsic Value 0    
15.01 - 23.00
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number Exercisable 48,315    
Weighted Average Exercise Price $ 17.33    
Aggregate Intrinsic Value $ 0