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Segment Information (Operating Data By Segment) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Revenues:
Total revenues	$ 2,593,781	$ 2,488,985	$ 4,888,761	$ 4,485,679
Income before Income Taxes:
Income before income taxes	457,009	320,776	720,778	537,479
Goodwill impairment	0	0	20,190	0
Adjustments to previously recorded reserves	(60,662)	(12,763)	(59,362)	(16,638)
Severance expense	10,300
Northeast
Income before Income Taxes:
Income before income taxes	18,944	26,212	37,553	34,140
Southeast
Income before Income Taxes:
Income before income taxes	72,780	42,499	127,524	80,355
Florida
Income before Income Taxes:
Income before income taxes	97,263	80,066	152,596	129,662
Midwest
Income before Income Taxes:
Income before income taxes	43,607	42,962	75,069	69,120
Texas
Income before Income Taxes:
Income before income taxes	59,909	49,144	113,504	80,115
West
Income before Income Taxes:
Income before income taxes	90,164	94,443	157,419	184,625
Other homebuilding
Income before Income Taxes:
Income before income taxes	13,918	(39,628)	(22,861)	(78,024)
Home sales
Income before Income Taxes:
Income before income taxes	396,585	295,698	640,804	499,993
Financial Services
Income before Income Taxes:
Income before income taxes	60,424	25,078	79,974	37,486
Total Homebuilding
Revenues:
Revenues	2,498,979	2,433,028	4,739,409	4,385,860
Total Homebuilding \| Northeast
Revenues:
Revenues	141,478	200,237	303,912	310,729
Total Homebuilding \| Southeast
Revenues:
Revenues	457,863	409,121	840,257	784,538
Total Homebuilding \| Florida
Revenues:
Revenues	581,520	535,153	1,088,209	931,597
Total Homebuilding \| Midwest
Revenues:
Revenues	339,680	350,584	631,849	644,174
Total Homebuilding \| Texas
Revenues:
Revenues	365,348	342,886	710,086	611,889
Total Homebuilding \| West
Revenues:
Revenues	613,090	595,047	1,165,096	1,102,933
Financial Services
Revenues:
Revenues	$ 94,802	$ 55,957	149,352	$ 99,819
Innovative Construction Group [Member]
Income before Income Taxes:
Goodwill impairment			$ 20,200