Quarterly report pursuant to Section 13 or 15(d)

Income Taxes (Details)

v3.7.0.1
Income Taxes (Details) - USD ($)
$ in Thousands
6 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Sep. 30, 2016
Income Tax Disclosure [Abstract]      
Effective tax rate 28.90% 29.10%  
Federal statutory rate 35.00%    
Unrecognized tax benefits $ 13,410   $ 13,820
Unrecognized tax benefits that would impact effective tax rate 6,253   6,663
Total penalties and interest accrued $ 2,168   $ 2,088