Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Mar. 31, 2026	Mar. 31, 2025	Mar. 31, 2026	Mar. 31, 2025	Sep. 30, 2025
Income Taxes
Income tax expense (benefit)	$ 1,543	$ (1,993)	$ (6,346)	$ (3,708)
Effective tax rate	(5.60%)	4.50%	6.50%	3.60%
U.S. statutory tax rate	21.00%		21.00%
Unrecognized tax benefits	$ 0		$ 0		$ 0
Global minimum tax threshold percentage			15.00%

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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+ Details