Segment Information (Operating Data By Segment) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Revenues:
Revenues	$ 16,061,578	$ 16,002,979	$ 13,736,995
Income (loss) before income taxes:
Income before income taxes	3,449,267	3,439,558	2,509,845
Gain Property Sale, Unconsolidated Entity		49,100
Adjustment to self insurance reserves	(130,841)	(64,965)	(81,131)
Gain (loss) on debt retirement	663	0	(61,469)
Real Estate | Northeast [Member] | Operating Segments
Revenues:
Revenues	969,628	1,063,568	1,112,778
Income (loss) before income taxes:
Income before income taxes	218,159	244,233	215,193
Real Estate | Southeast [Member] | Operating Segments
Revenues:
Revenues	2,675,213	2,764,945	2,208,345
Income (loss) before income taxes:
Income before income taxes	620,969	692,279	417,880
Real Estate | Florida [Member] | Operating Segments
Revenues:
Revenues	4,740,387	3,930,828	3,108,017
Income (loss) before income taxes:
Income before income taxes	1,212,675	939,034	585,680
Real Estate | Midwest [Member] | Operating Segments
Revenues:
Revenues	2,089,257	2,292,871	1,959,752
Income (loss) before income taxes:
Income before income taxes	368,321	363,028	287,956
Real Estate | Texas [Member] | Operating Segments
Revenues:
Revenues	2,069,467	2,193,295	1,768,895
Income (loss) before income taxes:
Income before income taxes	389,085	465,461	322,979
Real Estate | West [Member] | Operating Segments
Revenues:
Revenues	3,196,871	3,445,756	3,189,676
Income (loss) before income taxes:
Income before income taxes	419,635	687,403	592,845
Real Estate | Other Homebuilding [Member] | Operating Segments
Income (loss) before income taxes:
Income before income taxes	87,231	(84,110)	(134,405)
Real Estate | Homebuilding | Operating Segments
Revenues:
Revenues	15,740,823	15,691,263	13,347,463
Income (loss) before income taxes:
Income before income taxes	3,316,075	3,307,328	2,288,128
Home sale revenues | Homebuilding
Revenues:
Revenues	15,598,707	15,548,119	13,186,925
Detached single-family homes | Homebuilding
Revenues:
Revenues	13,100,000	13,200,000	11,100,000
Attached homes | Homebuilding
Revenues:
Revenues	2,500,000	2,300,000	2,100,000
Land sale and other revenues | Homebuilding
Revenues:
Revenues	142,116	143,144	160,538
Financial Services | Financial Services | Operating Segments
Revenues:
Revenues	320,755	311,716	389,532
Income (loss) before income taxes:
Income before income taxes	$ 133,192	$ 132,230	$ 221,717