v2.4.0.8
Income Taxes (Details 3)
12 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2011
Reconciliation of the U.S. federal statutory rate to the effective rate for continuing operations      
U.S. statutory rate (as a percent) 35.00% 35.00% 35.00%
Permanent items (as a percent) 0.60%   3.50%
State taxes (as a percent) 3.90% 3.90% 4.30%
Net foreign rate differential (as a percent) 0.60% 0.70%  
Provision for income taxes (as a percent) 40.10% 39.60% 42.80%