Condensed Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Revenue	$ 437,857	$ 406,980
Costs and Expenses [Abstract]
Land and housing	348,702	320,281
General and administrative	27,951	27,760
Selling	30,063	27,283
Acquisition and integration costs	1,700	0
Equity in income of joint venture arrangements	(310)	(17)
Interest	5,878	5,338
Total costs and expenses	413,984	380,645
Income before income taxes	23,873	26,335
Provision for income taxes	5,810	9,452
Net income	18,063	16,883
Preferred Dividends	0	1,219
Net income to common shareholders	$ 18,063	$ 15,664
Earnings per common share:
Basic	$ 0.64	$ 0.63
Diluted	$ 0.60	$ 0.55
Weighted Average Number of Shares Outstanding [Abstract]
Basic	28,124	24,738
Diluted	30,544	30,329