Owned Inventory - Schedule of Inventory Impairments and Abandonment Charges, by Reportable Segment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Real Estate Properties [Line Items]
Total abandonments charges	$ 200	$ 315	$ 200	$ 616
Total impairment and abandonment charges	200	315	200	616
West | Operating Segments
Real Estate Properties [Line Items]
Total abandonments charges	9	315	9	462
East | Operating Segments
Real Estate Properties [Line Items]
Total abandonments charges	91	0	91	154
Southeast | Operating Segments
Real Estate Properties [Line Items]
Total abandonments charges	$ 100	$ 0	$ 100	$ 0