Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Revenues
Total revenues	$ 3,161,192	$ 2,535,911	$ 2,147,413
Selling, general and administrative	(341,710)	(301,525)	(263,981)
Loss on debt extinguishment		(10,832)
Inventory impairment and other	(2,172)	(4,783)
Acquisition expense			(437)
Equity in income of unconsolidated subsidiaries			14,849
Other income (expense)	(2,211)	(5,190)	(905)
Income before income tax expense	270,240	132,635	128,530
Income tax expense	(64,083)	(19,641)	(32,075)
Net income	$ 206,157	$ 112,994	$ 96,455
Earnings per share:
Basic	$ 6.19	$ 3.66	$ 3.20
Diluted	$ 6.13	$ 3.62	$ 3.17
Weighted average common shares outstanding:
Basic	33,312,554	30,886,382	30,084,913
Diluted	33,610,098	31,186,952	30,391,346
Homebuilding [Member]
Revenues
Total revenues	$ 3,057,884	$ 2,492,649	$ 2,115,689
Cost of revenues	(2,490,062)	(2,048,371)	(1,745,451)
Home Sales [Member]
Revenues
Total revenues	3,027,167	2,481,465	2,110,058
Cost of revenues	(2,468,133)	(2,040,241)	(1,741,619)
Land Sales And Other [Member]
Revenues
Total revenues	30,717	11,184	5,631
Cost of revenues	(21,929)	(8,130)	(3,832)
Financial Services [Member]
Revenues
Total revenues	103,308	43,262	31,724
Cost of revenues	$ (54,797)	$ (32,575)	$ (22,958)