Reporting Segments (Schedule Of Total Revenue And Pretax Income By Segment) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Segment Reporting Information [Line Items]
Total revenue									$ 3,161,192	$ 2,535,911	$ 2,147,413
Total income before income tax expense	$ 121,164	$ 64,885	$ 50,103	$ 34,088	$ 53,968	$ 34,840	$ 20,830	$ 22,997	270,240	132,635	128,530
West [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Total revenue									683,138	534,613	459,254
Total income before income tax expense									71,417	43,027	38,380
Mountain [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Total revenue									860,041	729,045	701,985
Total income before income tax expense									114,722	89,201	89,048
Texas [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Total revenue									339,346	252,921	213,508
Total income before income tax expense									34,694	25,866	13,682
Southeast [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Total revenue									672,790	548,661	530,891
Total income before income tax expense									57,181	31,435	33,267
Century Complete [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Total revenue									502,569	427,409	210,051
Total income before income tax expense									33,449	22,044	(754)
Financial Services [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Total revenue									103,308	43,262	31,724
Total income before income tax expense									48,511	10,687	8,766
Corporate [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Total revenue
Total income before income tax expense									$ (89,734)	$ (89,625)	$ (53,859)