Condensed Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Revenue	$ 442,464	$ 363,457	$ 1,168,081	$ 949,472
Costs and Expenses [Abstract]
Land and housing	363,635	285,416	943,515	744,194
General and administrative	29,160	23,651	78,249	64,690
Selling	27,663	24,270	75,462	64,891
Equity in income of unconsolidated joint ventures	(24)	(36)	(413)	(248)
Interest	3,587	3,658	13,160	11,870
Total costs and expenses	424,021	336,959	1,109,973	885,397
Income before income taxes	18,443	26,498	58,108	64,075
Provision for income taxes	7,501	10,928	22,061	25,587
Net income	10,942	15,570	36,047	38,488
Preferred Dividends	1,218	1,218	3,656	3,656
Net income to common shareholders	$ 9,724	$ 14,352	$ 32,391	$ 34,832
Earnings per common share:
Basic	$ 0.39	$ 0.58	$ 1.31	$ 1.42
Diluted	$ 0.35	$ 0.51	$ 1.17	$ 1.25
Weighted Average Number of Shares Outstanding [Abstract]
Basic	24,669	24,605	24,665	24,551
Diluted	30,139	30,067	30,093	30,021