Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended								5 Months Ended	12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Jun. 14, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Revenues
Total revenues										$ 2,535,911	$ 2,147,413	$ 1,423,799
Selling, general and administrative										(301,525)	(263,981)	(176,304)
Loss on debt extinguishment										(10,832)
Inventory impairment and other										(4,783)
Acquisition expense											(437)	(9,905)
Equity in income of unconsolidated subsidiaries									$ 14,800		14,849	12,176
Other income (expense)										(5,190)	(905)	2,937
Income before tax expense	$ 53,968	$ 34,840	$ 20,830	$ 22,997	$ 36,062	$ 22,859	$ 46,502	$ 23,107		132,635	128,530	84,164
Income tax expense										(19,641)	(32,075)	(33,869)
Net income	$ 53,358	$ 27,024	$ 15,495	$ 17,117	$ 26,195	$ 17,048	$ 33,193	$ 20,019		$ 112,994	$ 96,455	$ 50,295
Earnings per share:
Basic	$ 1.65	$ 0.88	$ 0.51	$ 0.57	$ 0.85	$ 0.56	$ 1.11	$ 0.68		$ 3.66	$ 3.20	$ 2.06
Diluted	$ 1.63	$ 0.87	$ 0.51	$ 0.56	$ 0.85	$ 0.56	$ 1.10	$ 0.67		$ 3.62	$ 3.17	$ 2.03
Weighted average common shares outstanding:
Basic										30,886,382	30,084,913	24,280,871
Diluted										31,186,952	30,391,346	24,555,509
Home Sales [Member]
Revenues
Total revenues	$ 775,667	$ 573,860	$ 608,636	$ 523,302	$ 640,187	$ 552,876	$ 522,164	$ 394,831		$ 2,481,465	$ 2,110,058	$ 1,405,443
Cost of revenues										(2,040,241)	(1,741,619)	(1,153,359)
Land Sales And Other [Member]
Revenues
Total revenues										11,184	5,631	8,503
Cost of revenues										(8,130)	(3,832)	(6,516)
Homebuilding [Member]
Revenues
Total revenues										2,492,649	2,115,689	1,413,946
Cost of revenues										(2,048,371)	(1,745,451)	(1,159,875)
Financial Services [Member]
Revenues
Total revenues										43,262	31,724	9,853
Cost of revenues										$ (32,575)	$ (22,958)	$ (8,664)