CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024	Mar. 31, 2023
Income Statement [Abstract]
Total revenue	$ 541,540	$ 543,908	$ 928,358	$ 988,836
Home construction and land sales expenses	439,687	440,901	748,775	799,871
Inventory impairments and abandonments	0	111	0	301
Gross profit	101,853	102,896	179,583	188,664
Commissions	18,285	18,305	31,531	32,410
General and administrative expenses	44,004	42,779	85,990	83,427
Depreciation and amortization	3,573	3,020	5,806	5,533
Operating income	35,991	38,792	56,256	67,294
Loss on extinguishment of debt, net	(424)	0	(437)	(515)
Other income, net	10,343	1,007	13,000	1,583
Income from continuing operations before income taxes	45,910	39,799	68,819	68,362
Expense from income taxes	6,739	5,092	7,920	9,247
Income from continuing operations	39,171	34,707	60,899	59,115
Loss from discontinued operations, net of tax	0	0	0	(77)
Net income	$ 39,171	$ 34,707	$ 60,899	$ 59,038
Weighted-average number of shares:
Basic (in shares)	30,769	30,394	30,681	30,464
Diluted (in shares)	31,133	30,610	31,064	30,702
Basic income per share:
Continuing operations (in USD per share)	$ 1.27	$ 1.14	$ 1.98	$ 1.94
Discontinued operations (in USD per share)	0	0	0	0
Total (in USD per share)	1.27	1.14	1.98	1.94
Diluted income per share:
Continuing operations (in USD per share)	1.26	1.13	1.96	1.93
Discontinued operations (in USD per share)	0	0	0	0
Total (in USD per share)	$ 1.26	$ 1.13	$ 1.96	$ 1.93