Summary of Significant Accounting Policies - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2023	Mar. 31, 2022
Revision of Prior Period, Reclassification, Adjustment
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Adjustments to reconcile net loss			$ 189
Restricted shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted and performance shares (in shares)	0	100,000	0	0
Performance shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted and performance shares (in shares)	0	21,000	0	0