Quarterly report pursuant to Section 13 or 15(d)

Income Taxes (Details)

v3.7.0.1
Income Taxes (Details) - USD ($)
$ in Thousands
9 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Sep. 30, 2016
Income Tax Disclosure [Abstract]      
Effective tax rate (as a percent) 25.90% 31.20%  
Federal statutory rate (as a percent) 35.00%    
Unrecognized tax benefits $ 7,848   $ 13,820
Unrecognized tax benefits that would impact effective tax rate 6,858   6,663
Total penalties and interest accrued $ 2,397   $ 2,088