Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Income Tax Disclosure [Abstract]
Income tax provision (benefit)	$ 231	$ (2,712)	$ 460	$ (4,861)
Effective tax rate			14.00%	55.00%