Goodwill (Other Intangible Assets) (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 12 Months Ended
Dec. 31, 2014
Sep. 30, 2014
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount $ 51,533 $ 51,656
Accumulated Amortization 37,769 37,579
Net Carrying Amount 13,764 14,077
Intangibles Impairment Charge 20,820 20,820
Customer Lists [Member]    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 43,756 44,138
Accumulated Amortization 33,053 32,934
Net Carrying Amount 10,703 11,204
Intangibles Impairment Charge 18,657 18,657
Trademarks And Tradenames [Member]    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 2,176 2,176
Accumulated Amortization 2,051 2,051
Net Carrying Amount 125 125
Intangibles Impairment Charge 1,498 1,498
Licenses And Patents [Member]    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 5,024 4,765
Accumulated Amortization 2,108 2,037
Net Carrying Amount 2,916 2,728
Intangibles Impairment Charge 665 665
Other Intangibles [Member]    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 577 577
Accumulated Amortization 557 557
Net Carrying Amount $ 20 $ 20