Segment Information (Operating Data By Segment) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Revenues:
Total revenues	$ 2,488,985	$ 2,569,722	$ 4,485,679	$ 4,539,815
Income before Income Taxes:
Income before income taxes	320,776	409,170	537,479	633,362
Gains on sale of land sales		26,400
Northeast
Income before Income Taxes:
Income before income taxes	26,212	25,158	34,140	34,470
Southeast
Income before Income Taxes:
Income before income taxes	42,499	54,357	80,355	94,814
Florida
Income before Income Taxes:
Income before income taxes	80,066	67,491	129,662	112,436
Midwest
Income before Income Taxes:
Income before income taxes	42,962	43,050	69,120	71,451
Texas
Income before Income Taxes:
Income before income taxes	49,144	50,859	80,115	81,395
West
Income before Income Taxes:
Income before income taxes	94,443	154,414	184,625	243,619
Other homebuilding
Income before Income Taxes:
Income before income taxes	(39,628)	(6,876)	(78,024)	(39,374)
Home sales
Income before Income Taxes:
Income before income taxes	295,698	388,453	499,993	598,811
Financial Services
Income before Income Taxes:
Income before income taxes	25,078	20,717	37,486	34,551
Total Homebuilding
Revenues:
Revenues	2,433,028	2,516,958	4,385,860	4,441,113
Total Homebuilding | Northeast
Revenues:
Revenues	200,237	200,626	310,729	333,062
Total Homebuilding | Southeast
Revenues:
Revenues	409,121	445,506	784,538	820,129
Total Homebuilding | Florida
Revenues:
Revenues	535,153	455,637	931,597	804,346
Total Homebuilding | Midwest
Revenues:
Revenues	350,584	356,466	644,174	653,972
Total Homebuilding | Texas
Revenues:
Revenues	342,886	330,692	611,889	577,331
Total Homebuilding | West
Revenues:
Revenues	595,047	728,031	1,102,933	1,252,273
Financial Services
Revenues:
Revenues	$ 55,957	$ 52,764	$ 99,819	$ 98,702