Condensed Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Revenues	$ 2,283,598	$ 1,620,368	$ 4,325,044	$ 3,202,896
Interest expense	(13,270)	(9,525)	(26,667)	(16,011)
Income before taxes	417,465	209,831	729,471	371,206
Income tax expense	(96,170)	(45,756)	(159,414)	(31,428)
Net income	$ 321,295	$ 164,075	$ 570,057	$ 339,778
Basic earnings per share (USD per share)	$ 88.69	$ 44.56	$ 156.27	$ 92.52
Diluted earnings per share (USD per share)	$ 82.45	$ 42.50	$ 145.53	$ 87.56
Basic weighted average shares outstanding (in shares)	3,623	3,682	3,648	3,673
Diluted weighted average shares outstanding (in shares)	3,897	3,861	3,917	3,881
Home Building Segment
Revenues	$ 2,224,560	$ 1,588,758	$ 4,188,271	$ 3,144,465
Other income	1,632	2,408	3,218	7,744
Cost of Goods and Services Sold	1,721,673	1,284,493	3,299,126	2,579,236
Selling, general and administrative	(113,406)	(102,702)	(234,825)	(212,869)
Operating income	391,113	203,971	657,538	360,104
Interest expense	(12,850)	(9,166)	(25,856)	(15,380)
Income before taxes	378,263	194,805	631,682	344,724
Mortgage Banking
Revenues	59,038	31,610	136,773	58,431
Interest income	2,209	1,854	4,241	4,323
Other income	988	679	1,855	1,328
General and administrative	(22,613)	(18,758)	(44,269)	(36,969)
Interest expense	(420)	(359)	(811)	(631)
Income before taxes	$ 39,202	$ 15,026	$ 97,789	$ 26,482