Quarterly report pursuant to Section 13 or 15(d)

Income Taxes (Details)

v2.4.0.8
Income Taxes (Details) (USD $)
In Thousands, unless otherwise specified
 9 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Sep. 30, 2012
Income Taxes [Abstract]      
Effective tax rate (in hundredths) 34.30% 33.70%  
Federal statutory rate (in hundredths) 35.00%    
Unrecognized tax benefits that would impact effective tax rate $ 3,197   $ 2,708
Interest and penalties on tax uncertainties 434    
Total penalties and interest accrued $ 2,305   $ 1,871
United States - Federal [Member]
      
Income Tax Contingency [Line Items]      
Years under examination 2010 and forward    
United States - State [Member]
      
Income Tax Contingency [Line Items]      
Years under examination 2009 and forward    
Canada [Member]
      
Income Tax Contingency [Line Items]      
Years under examination 2008 and forward    
Europe [Member]
      
Income Tax Contingency [Line Items]      
Years under examination 2004 and forward    
United Kingdom [Member]
      
Income Tax Contingency [Line Items]      
Years under examination 2010 and forward    
Australia [Member]
      
Income Tax Contingency [Line Items]      
Years under examination 2009 and forward    
Asia [Member]
      
Income Tax Contingency [Line Items]      
Years under examination 2008 and forward