Consolidated Statements of Operations and Comprehensive Income (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Interest expense	$ (817)	$ (808)
Income (loss) before income taxes	22,586	2,125
Benefit from (provision for) income taxes	(70)	140
Net income	22,516	2,265
Other comprehensive income:
Unrealized gain related to available-for-sale securities	2,535	6,548
Tax effect
Comprehensive income	25,051	8,813
Earnings per share:
Basic	$ 0.46	$ 0.04
Diluted	$ 0.45	$ 0.04
Weighted average common shares outstanding:
Basic	48,342,145	47,311,840
Diluted	48,922,335	47,382,921
Dividends declared per share		$ 0.25
Homebuilding [Member]
Home sale revenues	331,748	184,678
Land sale revenues		1,590
Total home sale and land revenues	331,748	186,268
Home cost of sales	(274,076)	(158,654)
Land cost of sales		(1,490)
Total cost of sales	(274,076)	(160,144)
Gross margin	57,672	26,124
Selling, general and administrative expenses	(48,201)	(34,124)
Interest income	6,182	5,913
Interest expense	(817)	(808)
Other income (expense), net	11	158
Income (loss) before income taxes	14,847	(2,737)
Financial Services [Member]
Revenues	12,506	7,720
Expenses	(5,642)	(3,665)
Interest and other income	875	807
Income (loss) before income taxes	$ 7,739	$ 4,862