Condensed Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Total revenues	$ 149,992	$ 113,706	$ 433,267	$ 317,994
Cost of Goods and Services Sold	119,334	88,296	340,861	248,372
Total gross profit	30,658	25,410	92,406	69,622
Selling, general and administrative expense	13,979	9,520	40,759	28,732
Operating profit	16,679	15,890	51,647	40,890
Equity in income of unconsolidated entities	2,719	968	6,534	968
Other income, net	709	435	2,767	1,362
Income before taxes	20,107	17,293	60,948	43,220
Income tax provision	4,734	5,364	13,341	13,635
Net income	15,373	11,929	47,607	29,585
Less: Net income attributable to noncontrolling interests	3,176	2,649	9,338	6,420
Net income attributable to Green Brick Partners, Inc.	$ 12,197	$ 9,280	$ 38,269	$ 23,165
Net income attributable to Green Brick Partners, Inc. per common share:
Basic (in dollars per share)	$ 0.24	$ 0.19	$ 0.76	$ 0.47
Diluted (in dollars per share)	$ 0.24	$ 0.19	$ 0.75	$ 0.47
Weighted average common shares used in the calculation of net income attributable to Green Brick Partners, Inc. per common share:
Basic (in shares)	50,686	49,808	50,642	49,274
Diluted (in shares)	50,778	49,892	50,760	49,347
Residential Real Estate [Member]
Total revenues	$ 137,399	$ 108,437	$ 401,643	$ 302,179
Cost of Goods and Services Sold	108,781	84,752	315,606	237,066
Real Estate, Other [Member]
Total revenues	12,593	5,269	31,624	15,815
Cost of Goods and Services Sold	$ 10,553	$ 3,544	$ 25,255	$ 11,306