Condensed Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Costs and Expenses [Abstract]
Revenue	$ 1,142,909	$ 1,046,371	$ 3,299,393	$ 3,060,914
Land and housing	833,468	764,638	2,397,329	2,286,371
General and administrative	68,285	55,867	188,363	162,481
Selling	59,163	53,735	171,598	154,686
Other expense (income)	0	1	0	(34)
Interest income	(6,680)	(5,834)	(20,948)	(11,893)
Total costs and expenses	954,236	868,407	2,736,342	2,591,611
Income before income taxes	188,673	177,964	563,051	469,303
Provision for income taxes	43,224	38,948	132,795	109,220
Net income	$ 145,449	$ 139,016	$ 430,256	$ 360,083
Earnings per common share:
Basic	$ 5.26	$ 4.98	$ 15.45	$ 12.97
Diluted	$ 5.10	$ 4.82	$ 14.99	$ 12.58
Weighted Average Number of Shares Outstanding [Abstract]
Basic	27,644	27,909	27,857	27,769
Diluted	28,534	28,837	28,703	28,631