Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Homebuilding
Home sale revenues									$ 5,662,171	$ 5,424,309	$ 4,552,412
Land sale revenues									34,554	114,335	106,698
Total homebuilding revenues	1,786,464	1,561,273	1,254,989	1,093,999	1,624,959	1,547,742	1,240,060	1,125,883	5,696,725	5,538,644	4,659,110
Financial Services	36,093	33,452	31,198	24,895	30,380	34,336	39,362	36,873	125,638	140,951	160,888
Total revenues	1,822,557	1,594,725	1,286,187	1,118,894	1,655,339	1,582,078	1,279,422	1,162,756	5,822,363	5,679,595	4,819,998
Homebuilding Cost of Revenues:
Home sale cost of revenues									4,343,249	4,310,528	3,833,451
Land sale cost of revenues									23,748	104,426	94,880
Total cost of revenues	1,374,951	1,198,908	959,524	833,614	1,249,868	1,230,070	1,011,528	923,488	4,366,997	4,414,954	3,928,331
Financial Services expenses									71,239	92,379	135,511
Selling, general, and administrative expenses									667,815	568,500	514,457
Other expense, net									38,745	80,753	66,298
Interest income									(4,632)	(4,395)	(4,913)
Interest expense									849	712	819
Equity in earnings of unconsolidated entities									(8,408)	(1,130)	(4,059)
Income before income taxes	267,120	224,928	67,681	130,029	232,420	174,722	38,330	82,350	689,758	527,822	183,554
Income tax expense (benefit)	50,025	84,383	25,801	55,210	12,367	(2,107,162)	1,913	588	215,420	(2,092,294)	(22,591)
Net income	$ 217,095	$ 140,545	$ 41,880	$ 74,819	$ 220,053	$ 2,281,884	$ 36,417	$ 81,762	$ 474,338	$ 2,620,116	$ 206,145
Net income per share:
Basic (usd per share)	$ 0.58	$ 0.37	$ 0.11	$ 0.19	$ 0.58	$ 5.92	$ 0.09	$ 0.21	$ 1.27	$ 6.79	$ 0.54
Diluted (usd per share)	$ 0.58	$ 0.37	$ 0.11	$ 0.19	$ 0.57	$ 5.87	$ 0.09	$ 0.21	$ 1.26	$ 6.72	$ 0.54
Cash dividends declared (usd per share)	$ 0.08	$ 0.05	$ 0.05	$ 0.05	$ 0.05	$ 0.10			$ 0.23	$ 0.15	$ 0
Number of shares used in calculation:
Basic shares outstanding (shares)	369,533	373,531	376,072	383,991	379,879	382,883	385,389	384,228	370,377	383,077	381,562
Effect of dilutive securities (shares)	3,734	3,761	3,592	3,815	3,845	3,220	5,791	6,093	3,725	3,789	3,002
Diluted shares outstanding (shares)	373,267	377,292	379,664	387,806	383,724	386,103	391,180	390,321	374,102	386,866	384,564