Supplemental Guarantor Information Supplemental Guarantor Information - Income Statement (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Revenue	$ 406,980	$ 324,370
Land and housing	320,281	260,172
General and administrative	27,760	22,259
Selling	27,283	22,266
Equity in income of joint venture arrangements	(17)	(307)
Interest	5,338	5,265
Total costs and expenses	380,645	309,655
Income before income taxes	26,335	14,715
Provision for income taxes	9,452	5,526
Equity In subsidiaries	0	0
Net income	16,883	9,189
Preferred Dividends	1,219	1,219
Net income to common shareholders	15,664	7,970
Consolidation, Eliminations [Member]
Revenue	0	0
Land and housing	0	0
General and administrative	0	0
Selling	0	0
Equity in income of joint venture arrangements	0	0
Interest	0	0
Total costs and expenses	0	0
Income before income taxes	0	0
Provision for income taxes	0	0
Equity In subsidiaries	(16,883)	(9,189)
Net income	(16,883)	(9,189)
Preferred Dividends	0	0
Net income to common shareholders	(16,883)	(9,189)
Parent Company [Member]
Revenue	0	0
Land and housing	0	0
General and administrative	0	0
Selling	0	0
Equity in income of joint venture arrangements	0	0
Interest	0	0
Total costs and expenses	0	0
Income before income taxes	0	0
Provision for income taxes	0	0
Equity In subsidiaries	16,883	9,189
Net income	16,883	9,189
Preferred Dividends	1,219	1,219
Net income to common shareholders	15,664	7,970
Guarantor Subsidiaries [Member]
Revenue	392,673	314,317
Land and housing	320,281	260,172
General and administrative	22,460	18,302
Selling	27,283	22,266
Equity in income of joint venture arrangements	0	0
Interest	4,670	4,881
Total costs and expenses	374,694	305,621
Income before income taxes	17,979	8,696
Provision for income taxes	6,489	3,444
Equity In subsidiaries	0	0
Net income	11,490	5,252
Preferred Dividends	0	0
Net income to common shareholders	11,490	5,252
Non-Guarantor Subsidiaries [Member]
Revenue	14,307	10,053
Land and housing	0	0
General and administrative	5,300	3,957
Selling	0	0
Equity in income of joint venture arrangements	(17)	(307)
Interest	668	384
Total costs and expenses	5,951	4,034
Income before income taxes	8,356	6,019
Provision for income taxes	2,963	2,082
Equity In subsidiaries	0	0
Net income	5,393	3,937
Preferred Dividends	0	0
Net income to common shareholders	$ 5,393	$ 3,937