Condensed Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Total revenues	$ 342,340	$ 275,821	$ 950,625	$ 721,921
Cost of Goods and Services Sold	251,004	207,935	699,324	551,171
Total gross profit	91,336	67,886	251,301	170,750
Selling, general and administrative expenses	33,709	29,177	97,182	81,718
Business Combination, Acquisition Related Costs	0	(210)	0	(210)
Equity in income of unconsolidated entities	5,555	5,299	14,039	13,038
Other income, net	1,976	2,125	6,239	3,004
Income before income taxes	65,158	45,923	174,397	104,864
Income tax expense	13,898	9,969	37,093	17,357
Net income	51,260	35,954	137,304	87,507
Less: Net income attributable to noncontrolling interests	2,753	1,135	10,565	3,124
Net income attributable to Green Brick Partners, Inc.	$ 48,507	$ 34,819	$ 126,739	$ 84,383
Net income attributable to Green Brick Partners, Inc. per common share:
Basic (in dollars per share)	$ 0.96	$ 0.69	$ 2.50	$ 1.67
Diluted (in dollars per share)	$ 0.95	$ 0.68	$ 2.48	$ 1.66
Weighted average common shares used in the calculation of net income attributable to Green Brick Partners, Inc. per common share:
Basic (in shares)	50,732	50,617	50,689	50,552
Diluted (in shares)	51,079	50,876	51,046	50,739
Residential Real Estate [Member]
Total revenues	$ 338,900	$ 263,885	$ 889,636	$ 683,739
Cost of Goods and Services Sold	247,899	198,422	654,136	521,332
Real Estate, Other [Member]
Total revenues	3,440	11,936	60,989	38,182
Cost of Goods and Services Sold	$ 3,105	$ 9,513	$ 45,188	$ 29,839