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Restructuring Restructuring (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 12 Months Ended
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2011
Restructuring Cost and Reserve [Line Items]          
Restructuring Charges $ 350 $ 152 $ 350 $ 963  
Restructuring Reserve 350 0 350 121 0
Payments for Restructuring   (431) (84) (842)  
Restructuring Reserve, Accrual Adjustment   (71) (37)    
2014 Restructuring [Member]
         
Restructuring Cost and Reserve [Line Items]          
Restructuring and Related Cost, Number of Positions Eliminated   40      
2013 Restructuring [Member]
         
Restructuring Cost and Reserve [Line Items]          
Restructuring and Related Cost, Number of Positions Eliminated     15    
2012 Restructuring [Member]
         
Restructuring Cost and Reserve [Line Items]          
Restructuring and Related Cost, Number of Positions Eliminated       30  
Restructuring Charges       963  
Employee Severance [Member] | 2014 Restructuring [Member]
         
Restructuring Cost and Reserve [Line Items]          
Restructuring Charges   152 0 0  
Restructuring Reserve 0 0 0 0 0
Payments for Restructuring   (152) 0 0  
Restructuring Reserve, Accrual Adjustment   0 0    
Employee Severance [Member] | 2013 Restructuring [Member]
         
Restructuring Cost and Reserve [Line Items]          
Restructuring Charges   0 350 0  
Restructuring Reserve 350 0 350 0 0
Payments for Restructuring   (279) 0 0  
Restructuring Reserve, Accrual Adjustment   (71) 0    
Employee Severance [Member] | 2012 Restructuring [Member]
         
Restructuring Cost and Reserve [Line Items]          
Restructuring Charges   0 0 568  
Restructuring Reserve 0 0 0 13 0
Payments for Restructuring   0 0 (555)  
Restructuring Reserve, Accrual Adjustment   0 (13)    
Facility Closing [Member] | 2012 Restructuring [Member]
         
Restructuring Cost and Reserve [Line Items]          
Restructuring Charges   0 0 395  
Restructuring Reserve 0 0 0 108 0
Payments for Restructuring   0 (84) (287)  
Restructuring Reserve, Accrual Adjustment   $ 0 $ (24)