Income Taxes - Schedule of Calculation of the Effective Tax Rate (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Income (loss) before income taxes	$ (259)	$ 3,333
Income tax provision	105	558
Net income (loss)	$ (364)	$ 2,775
Effective tax rate	(41.00%)	17.00%