Segment information - Schedule of Financial Information By Segment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025	Dec. 31, 2025
Segment Reporting [Line Items]
Home closing revenue	$ 273,026	$ 223,924	$ 479,470	$ 448,646
Cost of home closings	225,105	171,985	391,098	343,177
Home closing gross profit	47,921	51,939	88,372	105,469
Less:
Selling, general and administrative costs	41,914	34,702	77,826	67,701
Corporate selling, general, and administrative costs	41,914	34,702	77,826	67,701
Income before income taxes	1,868	17,179	6,183	36,746
Assets	592,102		592,102		$ 557,593
Goodwill	25,726		25,726		25,726
Devon Street Homes, L.P
Less:
Goodwill	25,700		25,700
Reportable Geographical Components
Less:
Selling, general and administrative costs	26,895	23,369	49,159	45,159
Other segment items	4,586	234	4,858	1,109
Segment profit	16,440	28,336	34,355	59,201
Corporate selling, general, and administrative costs	26,895	23,369	49,159	45,159
Other corporate items	4,586	234	4,858	1,109
Assets	555,882		555,882		522,796
Reportable Geographical Components | Southeast
Segment Reporting [Line Items]
Home closing revenue	168,995	141,267	290,073	279,485
Cost of home closings	138,547	104,963	233,816	206,107
Home closing gross profit	30,448	36,304	56,257	73,378
Less:
Selling, general and administrative costs	15,912	14,220	29,116	27,406
Other segment items	3,962	93	4,087	126
Segment profit	10,574	21,991	23,054	45,846
Corporate selling, general, and administrative costs	15,912	14,220	29,116	27,406
Other corporate items	3,962	93	4,087	126
Assets	310,750		310,750		281,895
Reportable Geographical Components | Central
Segment Reporting [Line Items]
Home closing revenue	104,031	82,657	189,397	169,161
Cost of home closings	86,558	67,022	157,282	137,070
Home closing gross profit	17,473	15,635	32,115	32,091
Less:
Selling, general and administrative costs	10,983	9,149	20,043	17,753
Other segment items	624	141	771	983
Segment profit	5,866	6,345	11,301	13,355
Corporate selling, general, and administrative costs	10,983	9,149	20,043	17,753
Other corporate items	624	141	771	983
Assets	245,132		245,132		240,901
Corporate
Less:
Selling, general and administrative costs	15,019	11,333	28,667	22,542
Other segment items	(447)	(176)	(495)	(87)
Corporate selling, general, and administrative costs	15,019	11,333	28,667	22,542
Other corporate items	(447)	$ (176)	(495)	$ (87)
Assets	$ 36,220		$ 36,220		$ 34,797