Supplemental Guarantor Information Supplemental Guarantor Information - Income Statement (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Revenue	$ 577,603	$ 481,109
Land and housing	460,924	388,467
General and administrative	33,847	30,699
Selling	36,828	31,551
Equity in loss (income) from joint venture arrangements	(52)	121
Interest	4,700	6,792
Total costs and expenses	536,247	457,630
Income before income taxes	41,356	23,479
Provision for income taxes	9,610	5,756
Equity in subsidiaries	0	0
Net income	31,746	17,723
Consolidation, Eliminations [Member]
Revenue	0	0
Land and housing	0	0
General and administrative	0	0
Selling	0	0
Equity in loss (income) from 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	(31,746)	(17,723)
Net income	(31,746)	(17,723)
Parent Company [Member]
Revenue	0	0
Land and housing	0	0
General and administrative	0	0
Selling	0	0
Equity in loss (income) from 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	31,746	17,723
Net income	31,746	17,723
Guarantor Subsidiaries [Member]
Revenue	564,136	469,326
Land and housing	460,924	388,467
General and administrative	26,563	24,433
Selling	36,828	31,551
Equity in loss (income) from joint venture arrangements	0	0
Interest	3,969	6,049
Total costs and expenses	528,284	450,500
Income before income taxes	35,852	18,826
Provision for income taxes	8,581	4,755
Equity in subsidiaries	0	0
Net income	27,271	14,071
Non-Guarantor Subsidiaries [Member]
Revenue	13,467	11,783
Land and housing	0	0
General and administrative	7,284	6,266
Selling	0	0
Equity in loss (income) from joint venture arrangements	(52)	121
Interest	731	743
Total costs and expenses	7,963	7,130
Income before income taxes	5,504	4,653
Provision for income taxes	1,029	1,001
Equity in subsidiaries	0	0
Net income	$ 4,475	$ 3,652