CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2022
Income Statement [Abstract]
Total revenue	$ 2,330,197	$ 2,206,785	$ 2,316,988
Home construction and land sales expenses	1,903,907	1,763,449	1,776,518
Inventory impairments and abandonments	1,996	641	2,963
Gross profit	424,294	442,695	537,507
Commissions	80,056	73,450	74,336
General and administrative expenses	186,345	179,794	177,320
Depreciation and amortization	14,867	12,198	13,360
Operating income	143,026	177,253	272,491
(Loss) gain on extinguishment of debt, net	(437)	(546)	309
Other income, net	16,496	5,939	1,189
Income from continuing operations before income taxes	159,085	182,646	273,989
Expense from income taxes	18,910	23,958	53,271
Income from continuing operations	140,175	158,688	220,718
Loss from discontinued operations, net of tax	0	(77)	(14)
Net income	$ 140,175	$ 158,611	$ 220,704
Weighted-average number of shares:
Basic (in shares)	30,548	30,353	30,432
Diluted (in shares)	30,953	30,747	30,796
Basic income per share:
Continuing operations (in dollars per share)	$ 4.59	$ 5.23	$ 7.25
Discontinued operations (in dollars per share)	0	0	0
Total (in dollars per share)	4.59	5.23	7.25
Diluted income per share:
Continuing operations (in dollars per share)	4.53	5.16	7.17
Discontinued operations (in dollars per share)	0	0	0
Total (in dollars per share)	$ 4.53	$ 5.16	$ 7.17