Consolidated Statements of Operations and Comprehensive Income (Unaudited) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Homebuilding:
Inventory impairments		$ 0		$ 0
Interest expense		(909,000)	(685,000)	(1,726,000)
Loss on early extinguishment of debt			(9,412,000)
Income (loss) before income taxes	34,026,000	38,012,000	52,666,000	60,598,000
Benefit from (provision for) income taxes	(12,484,000)	186,897,000	(19,620,000)	186,827,000
Net income	21,542,000	224,909,000	33,046,000	247,425,000
Other comprehensive income (loss) related to available for sale securities, net of tax	2,327,000	(1,995,000)	(1,719,000)	540,000
Comprehensive income	23,869,000	222,914,000	31,327,000	247,965,000
Earnings per share:
Basic (in Dollars per share)	$ 0.44	$ 4.60	$ 0.68	$ 5.06
Diluted (in Dollars per share)	$ 0.44	$ 4.55	$ 0.67	$ 5.01
Weighted average common shares outstanding
Basic (in Shares)	48,640,979	48,478,076	48,613,521	48,410,486
Diluted (in Shares)	48,852,696	48,946,055	48,842,527	48,916,988
Dividends declared per share (in Dollars per share)	$ 0.25		$ 0.50
Homebuilding [Member]
Homebuilding:
Home sale revenues	430,743,000	400,327,000	749,277,000	732,075,000
Land sale revenues	518,000	1,807,000	518,000	1,807,000
Total home and land sale revenues	431,261,000	402,134,000	749,795,000	733,882,000
Home cost of sales	(356,175,000)	(327,927,000)	(615,653,000)	(602,003,000)
Land cost of sales	(522,000)	(1,435,000)	(522,000)	(1,435,000)
Inventory impairments	(850,000)		(850,000)
Total cost of sales	(357,547,000)	(329,362,000)	(617,025,000)	(603,438,000)
Gross margin	73,714,000	72,772,000	132,770,000	130,444,000
Selling, general and administrative expenses	(49,798,000)	(51,908,000)	(98,140,000)	(100,109,000)
Interest and other income	4,613,000	10,200,000	18,162,000	16,749,000
Interest expense		(909,000)	(685,000)	(1,726,000)
Other expense	(1,080,000)	(366,000)	(1,693,000)	(722,000)
Loss on early extinguishment of debt			(9,412,000)
Income (loss) before income taxes	27,449,000	29,789,000	41,002,000	44,636,000
Financial Services [Member]
Homebuilding:
Revenues	11,491,000	13,884,000	20,714,000	26,390,000
Expenses	(5,615,000)	(6,581,000)	(10,539,000)	(12,223,000)
Interest and other income	701,000	920,000	1,489,000	1,795,000
Income (loss) before income taxes	$ 6,577,000	$ 8,223,000	$ 11,664,000	$ 15,962,000