Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Income Taxes
Statutory federal tax rate (as a percent)	21.00%	21.00%	21.00%	21.00%
Effective tax rate (as a percent)	23.50%	24.80%	22.20%	25.00%
Income (loss) before income taxes	$ 11,449	$ 20,757	$ 37,072	$ 38,330

Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

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+ Details