Condensed Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Costs and Expenses [Abstract]
Revenue	$ 1,109,781	$ 1,014,013	$ 2,156,484	$ 2,014,543
Land and housing	800,501	755,829	1,563,861	1,521,733
General and administrative	63,994	55,654	120,078	106,614
Selling	58,495	51,871	112,435	100,951
Other expense (income)	0	(28)	0	(35)
Interest income	(7,348)	(4,670)	(14,268)	(6,059)
Total costs and expenses	915,642	858,656	1,782,106	1,723,204
Income before income taxes	194,139	155,357	374,378	291,339
Provision for income taxes	47,393	37,356	89,571	70,272
Net income	$ 146,746	$ 118,001	$ 284,807	$ 221,067
Earnings per common share:
Basic	$ 5.26	$ 4.25	$ 10.18	$ 7.98
Diluted	$ 5.12	$ 4.12	$ 9.90	$ 7.77
Weighted Average Number of Shares Outstanding [Abstract]
Basic	27,878	27,792	27,965	27,698
Diluted	28,668	28,624	28,777	28,469