Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Income Tax Disclosure [Abstract]
Income tax provision	$ 532	$ 1,168	$ 2,068	$ 2,075
Effective income tax rate			17.70%	26.50%
Income tax benefit specific to the period			$ 1,200	$ 900
Unrecognized tax benefits that would impact effective tax rate	$ 1,400		$ 1,400