Condensed Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Revenues	$ 2,395,640	$ 1,990,012	$ 6,720,684	$ 5,192,908
Interest expense	(13,243)	(11,687)	(39,910)	(27,698)
Income before taxes	434,127	321,457	1,163,598	692,663
Income tax expense	(102,046)	(64,991)	(261,460)	(96,419)
Net income	$ 332,081	$ 256,466	$ 902,138	$ 596,244
Basic earnings per share (USD per share)	$ 93.25	$ 69.19	$ 249.30	$ 161.85
Diluted earnings per share (USD per share)	$ 86.44	$ 65.11	$ 231.75	$ 153.03
Basic weighted average shares outstanding (in shares)	3,561	3,706	3,619	3,684
Diluted weighted average shares outstanding (in shares)	3,842	3,939	3,893	3,896
Home Building Segment
Revenues	$ 2,336,615	$ 1,920,751	$ 6,524,886	$ 5,065,216
Other income	1,496	1,988	4,714	9,732
Cost of Goods and Services Sold	1,817,939	1,536,044	5,117,065	4,115,280
Selling, general and administrative	(112,226)	(105,741)	(347,051)	(318,610)
Operating income	407,946	280,954	1,065,484	641,058
Interest expense	(12,838)	(11,309)	(38,694)	(26,689)
Income before taxes	395,108	269,645	1,026,790	614,369
Mortgage Banking
Revenues	59,025	69,261	195,798	127,692
Interest income	2,336	2,222	6,577	6,545
Other income	1,022	887	2,877	2,215
General and administrative	(22,959)	(20,180)	(67,228)	(57,149)
Interest expense	(405)	(378)	(1,216)	(1,009)
Income before taxes	$ 39,019	$ 51,812	$ 136,808	$ 78,294