Consolidated Statements of Operations and Comprehensive Income (Unaudited) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Homebuilding:
Inventory impairments	$ 0	$ (400)		$ (400)
Interest expense	0	0	(685)	(1,726)
Loss on early extinguishment of debt			(9,412)
Other-than-temporary impairment of marketable securities			(4,293)
Income (loss) before income taxes	23,924	34,909	76,590	95,507
Benefit from (provision for) income taxes	(8,466)	1,342	(28,086)	188,169
Net income	15,458	36,251	48,504	283,676
Other comprehensive income (loss) related to available-for-sale securities, net of tax	(2,484)	1,960	(4,203)	2,500
Comprehensive income	12,974	38,211	44,301	286,176
Earnings per share:
Basic (in Dollars per share)	$ 0.32	$ 0.74	$ 0.99	$ 5.80
Diluted (in Dollars per share)	$ 0.32	$ 0.74	$ 0.99	$ 5.75
Weighted average common shares outstanding
Basic (in Shares)	48,625,685	48,478,403	48,607,425	48,423,969
Diluted (in Shares)	48,830,790	48,753,649	48,824,871	48,852,870
Dividends declared per share (in Dollars per share)	$ 0.25		$ 0.75
Homebuilding [Member]
Homebuilding:
Home sale revenues	405,051	433,693	1,154,328	1,165,768
Land sale revenues	2,653	25	3,171	1,832
Total home and land sale revenues	407,704	433,718	1,157,499	1,167,600
Home cost of sales	(338,037)	(354,889)	(953,690)	(956,892)
Land cost of sales	(1,985)	(35)	(2,507)	(1,470)
Inventory impairments		(350)	(850)	(350)
Total cost of sales	(340,022)	(355,274)	(957,047)	(958,712)
Gross margin	67,682	78,444	200,452	208,888
Selling, general and administrative expenses	(50,512)	(57,753)	(148,652)	(157,862)
Interest and other income	5,926	6,853	24,088	23,602
Interest expense			(685)	(1,726)
Other expense	(841)	(881)	(2,534)	(1,603)
Loss on early extinguishment of debt			(9,412)
Other-than-temporary impairment of marketable securities	(4,293)		(4,293)
Income (loss) before income taxes	17,962	26,663	58,964	71,299
Financial Services [Member]
Homebuilding:
Revenues	10,699	14,282	31,413	40,672
Expenses	(5,643)	(6,921)	(16,182)	(19,144)
Interest and other income	906	885	2,395	2,680
Income (loss) before income taxes	$ 5,962	$ 8,246	$ 17,626	$ 24,208