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Debt (Details) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2012
Sep. 30, 2011
Line of Credit Facility [Line Items]    
Capital Lease Obligations $ 441 [1] $ 1,263 [1]
Debt and Capital Lease Obligations 48,521 4,170
Long Term Debt And Capital Lease Obligations Non Current (104) (354)
Total debt included in current liabilities 48,417 3,816
Revolving credit facility
   
Line of Credit Facility [Line Items]    
Amount Outstanding 39,500 0
Sterling revolving credit facility
   
Line of Credit Facility [Line Items]    
Amount Outstanding $ 8,580 $ 2,907
[1] (1) The capital lease obligations have varying maturity dates.