Consolidated Statements of Operations and Comprehensive Income (Unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Homebuilding [Member]
Home sale revenues	$ 394,420,000	$ 377,009,000
Land sale revenues	2,324,000	910,000
Total home and land sale revenues	396,744,000	377,919,000
Home cost of sales	(330,026,000)	(318,642,000)
Land cost of sales	$ (1,663,000)	(1,125,000)
Inventory impairments		(350,000)
Total cost of sales	$ (331,689,000)	(320,117,000)
Gross margin	65,055,000	57,802,000
Selling, general and administrative expenses	(56,277,000)	(50,532,000)
Financial services interest and other income	1,850,000	1,865,000
Other expense	(1,541,000)	$ (1,145,000)
Other-than-temporary impairment of marketable securities	(431,000)
Homebuilding pretax income	8,656,000	$ 7,990,000
Financial Services [Member]
Homebuilding pretax income	5,617,000	5,336,000
Revenues	11,017,000	10,591,000
Expenses	(6,241,000)	(6,159,000)
Interest and other income	$ 841,000	904,000
Inventory impairments		(350,000)
Other-than-temporary impairment of marketable securities	$ (431,000)	0
Homebuilding pretax income	14,273,000	13,326,000
Provision for income taxes	(4,710,000)	(4,906,000)
Net income	9,563,000	8,420,000
Other comprehensive income related to available for sale securities, net of tax	1,948,000	1,308,000
Comprehensive income	$ 11,511,000	$ 9,728,000
Earnings per share:
Basic (in dollars per share)	$ 0.20	$ 0.17
Diluted (in dollars per share)	$ 0.20	$ 0.17
Weighted average common shares outstanding
Basic (in shares)	48,827,971	48,714,637
Diluted (in shares)	48,833,444	48,891,514
Dividends declared per share (in dollars per share)	$ 0.25	$ 0.25