Debt - Schedule of Long-term Debt Instruments (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Sep. 30, 2024
Debt Instrument [Line Items]
Total debt	$ 238,192	$ 241,054
Secured Debt | Secured By Real Estate
Debt Instrument [Line Items]
Total debt	150,642	151,098
Secured Debt | Secured By Stock In Subsidiary
Debt Instrument [Line Items]
Total debt	65,506	64,042
Secured Debt | Secured By Other Assets
Debt Instrument [Line Items]
Total debt	7,071	7,594
Unsecured Debt
Debt Instrument [Line Items]
Total debt	$ 14,973	$ 18,320