CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021
Income Statement [Abstract]
Total revenue	$ 508,506	$ 549,889	$ 962,655	$ 978,428
Home construction and land sales expenses	387,821	451,963	744,570	804,744
Inventory impairments and abandonments	935	0	935	465
Gross profit	119,750	97,926	217,150	173,219
Commissions	16,578	20,884	32,391	37,391
General and administrative expenses	45,530	39,741	83,297	77,717
Depreciation and amortization	3,031	3,683	5,912	6,805
Operating income	54,611	33,618	95,550	51,306
Equity in income of unconsolidated entities	163	186	451	111
Loss on extinguishment of debt, net	(164)	(563)	(164)	(563)
Other income (expense), net	140	(894)	271	(2,346)
Income from continuing operations before income taxes	54,750	32,347	96,108	48,508
Expense from income taxes	10,072	7,704	16,535	11,829
Income from continuing operations	44,678	24,643	79,573	36,679
Loss from discontinued operations, net of tax	(6)	(115)	(16)	(154)
Net income	$ 44,672	$ 24,528	$ 79,557	$ 36,525
Weighted-average number of shares:
Basic (in shares)	30,594	29,953	30,464	29,862
Diluted (in shares)	30,823	30,215	30,772	30,150
Basic income (loss) per share:
Continuing operations (in USD per share)	$ 1.46	$ 0.82	$ 2.61	$ 1.23
Discontinued operations (in USD per share)	0	0	0	(0.01)
Total (in USD per share)	1.46	0.82	2.61	1.22
Diluted income (loss) per share:
Continuing operations (in USD per share)	1.45	0.81	2.59	1.22
Discontinued operations (in USD per share)	0	0	0	(0.01)
Total (in USD per share)	$ 1.45	$ 0.81	$ 2.59	$ 1.21