Segment Information (Operating Data By Segment) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Revenues:
Total revenues	$ 2,710,365	$ 2,649,366	$ 7,196,044	$ 7,189,181
Income before Income Taxes:
Income before income taxes	366,146	384,688	903,625	1,018,049
Cost to complete repairs	9,000		14,800
Gains on sale of land sales		(26,400)
Adjustments to previously recorded reserves	(1,700)	(5,065)	(18,338)	(40,133)
Write-off of insurance receivables			24,000
Northeast
Income before Income Taxes:
Income before income taxes	37,285	18,938	71,425	53,408
Southeast
Income before Income Taxes:
Income before income taxes	42,313	51,920	122,668	146,735
Florida
Income before Income Taxes:
Income before income taxes	89,186	73,802	218,848	186,238
Midwest
Income before Income Taxes:
Income before income taxes	55,286	52,438	124,406	123,889
Texas
Income before Income Taxes:
Income before income taxes	53,502	55,382	133,617	136,777
West
Income before Income Taxes:
Income before income taxes	100,034	138,698	284,659	382,317
Other homebuilding
Income before Income Taxes:
Income before income taxes	(43,744)	(26,123)	(121,769)	(65,497)
Home sales
Income before Income Taxes:
Income before income taxes	333,862	365,055	833,854	963,867
Financial Services
Income before Income Taxes:
Income before income taxes	32,284	19,633	69,771	54,182
Total Homebuilding
Revenues:
Revenues	2,645,550	2,597,746	7,031,410	7,038,859
Total Homebuilding | Northeast
Revenues:
Revenues	209,696	185,614	520,425	518,676
Total Homebuilding | Southeast
Revenues:
Revenues	456,244	451,600	1,240,782	1,271,730
Total Homebuilding | Florida
Revenues:
Revenues	539,269	506,670	1,470,866	1,311,016
Total Homebuilding | Midwest
Revenues:
Revenues	403,916	412,803	1,048,090	1,066,775
Total Homebuilding | Texas
Revenues:
Revenues	359,717	347,986	971,606	925,317
Total Homebuilding | West
Revenues:
Revenues	676,708	693,073	1,779,641	1,945,345
Financial Services
Revenues:
Revenues	$ 64,815	$ 51,620	$ 164,634	$ 150,322