Property and Equipment (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Sep. 30, 2024
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 95,058	$ 82,374
Less: Accumulated depreciation	(47,113)	(43,746)
Property and equipment, net	47,945	38,628
Model furnishings and sales office improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	32,727	32,179
Information systems
Property, Plant and Equipment [Line Items]
Property and equipment, gross	39,483	30,140
Furniture, fixtures and office equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	17,274	15,447
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	4,192	3,226
Buildings and improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 1,382	$ 1,382