Segment Information (Operating Data By Segment) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Income before Income Taxes:
Income before income taxes	$ 394,052	$ 263,769
Goodwill impairment	0	20,190
Loss on debt retirement	61,469	0
Operating Segments
Revenues:
Total revenues	2,729,791	2,294,980
Operating Segments | Northeast
Revenues:
Revenues	176,467	162,434
Income before Income Taxes:
Income before income taxes	25,894	18,609
Operating Segments | Southeast
Revenues:
Revenues	436,779	382,394
Income before Income Taxes:
Income before income taxes	71,322	54,744
Operating Segments | Florida
Revenues:
Revenues	625,241	506,689
Income before Income Taxes:
Income before income taxes	101,208	55,333
Operating Segments | Midwest
Revenues:
Revenues	366,814	292,169
Income before Income Taxes:
Income before income taxes	52,864	31,462
Operating Segments | Texas
Revenues:
Revenues	374,121	344,738
Income before Income Taxes:
Income before income taxes	65,648	53,595
Operating Segments | West
Revenues:
Revenues	644,247	552,006
Income before Income Taxes:
Income before income taxes	98,832	67,255
Operating Segments | Other homebuilding
Income before Income Taxes:
Income before income taxes	(88,064)	(36,780)
Operating Segments | Home sales
Income before Income Taxes:
Income before income taxes	327,704	244,218
Operating Segments | Financial Services
Income before Income Taxes:
Income before income taxes	66,348	19,551
Total Homebuilding | Operating Segments
Revenues:
Revenues	2,623,669	2,240,430
Financial Services | Operating Segments | Home sales
Revenues:
Revenues	$ 106,122	54,550
Innovative Construction Group [Member]
Income before Income Taxes:
Goodwill impairment		$ 20,190