CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Income Statement [Abstract]
Total revenue	$ 572,544	$ 526,666	$ 1,561,380	$ 1,489,321
Home construction and land sales expenses	455,485	394,201	1,255,356	1,138,771
Inventory impairments and abandonments	315	0	616	935
Gross profit	116,744	132,465	305,408	349,615
Commissions	19,473	16,277	51,883	48,668
General and administrative expenses	46,464	45,760	129,891	129,057
Depreciation and amortization	2,907	3,189	8,440	9,101
Operating income	47,900	67,239	115,194	162,789
(Loss) gain on extinguishment of debt, net	(18)	86	(533)	(78)
Other income, net	2,176	137	3,759	859
Income from continuing operations before income taxes	50,058	67,462	118,420	163,570
Expense from income taxes	6,241	13,150	15,488	29,685
Income from continuing operations	43,817	54,312	102,932	133,885
Gain (loss) from discontinued operations, net of tax	0	12	(77)	(4)
Net income	$ 43,817	$ 54,324	$ 102,855	$ 133,881
Weighted-average number of shares:
Basic (in shares)	30,395	30,512	30,335	30,480
Diluted (in shares)	30,860	30,872	30,649	30,806
Basic income per share:
Continuing operations (in USD per share)	$ 1.44	$ 1.78	$ 3.39	$ 4.39
Discontinued operations (in USD per share)	0	0	0	0
Total (in USD per share)	1.44	1.78	3.39	4.39
Diluted income per share:
Continuing operations (in USD per share)	1.42	1.76	3.36	4.35
Discontinued operations (in USD per share)	0	0	0	0
Total (in USD per share)	$ 1.42	$ 1.76	$ 3.36	$ 4.35